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Town of North Andover, MA
Essex County
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Table of Contents
Table of Contents
In order to ensure high-quality Development within the OSGOD and to ensure design that respects the built and natural character of North Andover, the following Design Standards are established. These standards are intended to be flexible, and applied by the Plan Approval Authority as appropriate to the Development as part of the site plan review process to enable the purpose of this district to be realized. While these guidelines apply to all site improvements and Buildings and Structures, it is not the intent of this Part 9 to prescribe or proscribe use of materials or methods of construction regulated by the State Building Code, but rather to enhance the appearance of the built environment within an OSGOD. In the case of inconsistency between applicable federal and state law, including without limitation the State Building Code or life safety codes and these Design Standards, the applicable federal and state laws, rules and regulations shall govern.
The placement of Buildings and Structures in an OSGOD shall:
A. 
Provide for buffering of Buildings and Structures to adjoining properties either within the proposed OSGOD or to adjacent land Uses. Such buffering includes, but is not limited to: Landscaping, screening materials, natural barriers, fencing, and related measures;
B. 
Development should acknowledge Route 125 as its front entry. Rooftop equipment shall be appropriately screened to avoid visual impacts to residential Uses;
C. 
Buildings adjacent to usable Open Space should generally be oriented to that space, with access to the Building opening onto the Open Space;
D. 
Provide street trees with tree grates or in planter strips, using appropriate species to provide summer shade and winter light. Species should be native, resistant to salt and drought, and be tolerant of urban conditions;
E. 
Orient Structures to provide pedestrian entrances to the sidewalk;
F. 
Street Design Standards shall not be limited to defined rights-of-way but shall also apply to Driveways and internal ways which function as streets;
G. 
Trash collection and dumpster locations shall be appropriately located and screened to avoid adverse impacts on neighbors and neighboring properties. Within a Development, the containment of all solid waste storage and handling within the Building(s) of the Development is encouraged; and
H. 
Any loading docks or areas associated with the mixed-use Development component shall be located to minimize (visual and operational) impacts on the site and on neighboring properties.
A. 
Create Open Space parks within the Development;
B. 
Mature street trees have a high value to the Development; minimize departures from Development standards that would impair the health of a mature trees;
C. 
Use landscape materials that are native, sustainable, requiring minimal irrigation or fertilizer; and
D. 
Encourage alternative and green paving materials to minimize stormwater run-off.
The massing of Buildings shall:
A. 
Avoid unbroken Building facades longer than 50 feet. Buildings shall not be longer than 210 feet in length, unless waived by the PAA. In approving Building lengths that exceed 210 feet, the PAA must find that pedestrian circulation is enhanced by the provision of archways, passageways, or other similar throughways;
B. 
Mixed-use Buildings should incorporate the use of dual facades to foster integration of Uses where appropriate;
C. 
Provide a variety of Building heights and varied roofline articulation; and
D. 
Buildings on corner lots shall be oriented to the corner and public street fronts. Parking and automobile access shall be located away from the corners, where practical.
To the extent not inconsistent with or preempted by the State Building Code, the following shall be considered as applicable:
A. 
It is not intended that Buildings be totally uniform in appearance or that designers and developers be restricted in their creativity. Rather, cohesion and identity can be demonstrated by:
(1) 
Similar Building scale or mass;
(2) 
Consistent use of facade materials;
(3) 
Similar ground-level detailing, color or signage;
B. 
Preferred exterior Building siding materials include brick, stone, wood, cement and composite materials and other types of exterior siding materials upon a determination by the PAA that the quality of such siding will not detract from the aesthetics of the proposed Buildings.
C. 
New Buildings. The design of new Buildings shall incorporate architectural features such as:
(1) 
Transom or clerestory windows above entrances, display windows and projected bay windows are encouraged within commercial, retail, and industrial Developments.
(2) 
Multiple-paned windows that divide large areas of glass into smaller parts shall be used.
(3) 
Incorporate Building entry treatments that are arched or framed and protect people from the elements.
(4) 
Nonreflective storefront windows and transoms; architectural detailing on the first floor; and detailing at the roofline.
D. 
Ground floor: transparent, open facades for commercial Uses at street level;
E. 
Middle floors: architectural features may include change in materials and color and/or texture that enhance specific elements of the Building; and
F. 
Top floors. Clearly distinguish tops of Buildings from the facade walls by including detail elements such as steep gables with overhangs, parapets and cornices.
A. 
Pedestrian Open Spaces and entrances.
(1) 
Entries for residential Uses on the street (rather than from the rear of the property);
(2) 
Overhead weather protection shall be designed to minimize gaps in coverage, except to accommodate street trees;
(3) 
Sidewalks shall be surfaced with concrete, brick, or stone materials unless waived by the SPGA; minimum width shall be five feet unless waived by the SPGA; and
(4) 
Benches for seating shall be provided near retail entrances and at bus stops. At bus stops, such benches shall offer protection from the weather.
The landscape design shall strive to provide greenery so that streets and access drives are lined with shade trees, large paved areas are visually divided and screened and buffers are provided within and around the Development. Said landscape design shall be prepared and stamped by a registered landscape architect. Landscaping criteria are as follows:
A. 
Native trees and shrubs shall be planted wherever possible, such as lilac, viburnum, day lilies, ferns, red twig, dogwood, oak, maple, sycamore, linden, hawthorne, birch, shadbush, etc.).
B. 
Provide hedges or continuous shrubs to screen parking areas from streets, where practical;
C. 
All Buildings shall have foundation Landscaping, where practical;
D. 
All islands and landscape areas shall be of a minimum width and size to support healthy plant growth. The minimum width for plant beds shall be five feet and an eight-foot width for trees;
E. 
All open areas, exclusive of areas to remain in an existing natural state, shall be landscaped, utilizing both natural and man-made materials such as indigenous grasses, trees, shrubs, and attractive paving materials and outdoor furniture;
F. 
Deciduous trees shall be placed along new and existing streets and ways. Street trees shall be located every 30 feet on center along both sides of the Roadway within the district.
(1) 
The species of street trees selected shall be a minimum of four different species from the list of recommended street trees below:
(a) 
Plantanus acerifolia (London planetree);
(b) 
Fraxinus pennsylvanica (green ash);
(c) 
Ginkgo biloba (ginkgo);
(d) 
Gleditsia triacanthos inermis (honey locust);
(e) 
Maple;
(f) 
Oak;
(g) 
Tilia cordata (little-leaf Linden);
(h) 
Pyrus calleryana (Chanticleer Callery pear); and
(i) 
Zelkova serrata (Japanese Zelkova).
(2) 
The existing Roadways, Route 125 and the existing property Driveway, shall have larger trees that typically grow to heights greater than 50 feet. The species of street trees selected shall be a minimum of four different species from the list of recommended street trees below:
(a) 
Picea pungens (Colorado blue spruce);
(b) 
Picea abies (Norway spruce);
(c) 
Fagus grandifolia (American beech);
(d) 
Fraxinus Americana (white ash);
(e) 
Betula alleghaniensis (yellow birch);
(f) 
Acer saccharum (sugar maple);
(g) 
Acer rubrum (red maple);
(h) 
Quercus rubra (northern red oak);
(i) 
Quercus coccinea (scarlet oak);
(j) 
Platanus acerifolia (London planetree); and
(k) 
Betula papyrifera (paper birch).
G. 
Outdoor lighting shall be considered in the Landscaping plan and requires the submission of a photometric lighting plan. Cutoff shields shall be used to minimize glare and light spillover onto abutting property. Ornamental streetlights, 16 feet maximum height on minor roads and 24 feet maximum height on major roads;
H. 
Preservation of existing vegetation or tree-lined areas shall be maintained; and
I. 
Landscaped, required Open Space and green areas, in addition to serving as visual amenities, shall be employed to reduce the rate and volume of stormwater runoff compared to pre-development conditions; for that reason, Department of Environmental (DEP) Stormwater best management practices and other measures to minimize runoff and improve water quality shall be implemented. It is also generally intended that said space be designed and located to connect with existing off-site usable Open Space, and provide potential for connection with future Open Space by extending to the perimeter of the Development, particularly when a plan exists for the location and networking of such future Open Space.
A. 
All artificial lighting used to illuminate residential, commercial, and industrial parking lot, loading bay or Driveway shall have underground wiring and shall be so arranged that all direct rays from such lighting falls entirely within the parking, loading or Driveway area, and shall be shielded or recessed so as not to shine upon abutting properties;
B. 
Lighting in display windows to illuminate the sidewalk is recommended;
C. 
Architectural lighting to complement the architecture of the Structure, including transparent windows allowing views into and out of the Structure;
D. 
Fixtures that produce glare or that spill light to adjoining sites are prohibited; and
E. 
Installation of pedestrian light fixtures as part of a Development's sidewalk improvements is strongly encouraged.
A. 
Parking areas and lots shall use Landscaping and terracing to break up large areas of pavement. The following minimum screening and Landscaping requirements shall apply for all lots with more than six parking spaces:
(1) 
A strip of land at least six feet wide (may be part of required yard setbacks) with trees or shrubs densely planted, to create at least an impervious screen, at least four feet high at the time of planting and which are of a type that may be commonly expected to form a year-round impervious screen at least five feet high within three years;
(2) 
If a natural screen as described in Subsection A(1) above cannot be attained, a wall or fence of uniform appearance at least five feet high above finished grade will be allowed. Such a wall and/or fence may be perforated, provided that not more than 25% of the face is open; and
(3) 
All required screening, as described in Subsection A(1) and (2) above, shall be maintained in good condition at all times. Such screening may be interrupted by entrances or exits, and shall have no signs attached thereto other than those permitted in the district.
B. 
For all off-street parking areas of 18 or more spaces the following criteria shall also apply:
(1) 
On at least three sides of the perimeter of an outdoor parking lot, there shall be planted at least one tree for every 30 linear feet. In the interior part of an outdoor parking lot where two rows of parking spaces containing a total of nine or more parking spaces face each other, a landscaped Open Space not less than six feet in width shall be provided. The landscaped strip may be provided either:
(a) 
Between the rows of parking spaces parallel to the aisle; or
(b) 
In two or more strips parallel to the spaces and extending from the aisle serving one row of spaces to the aisle serving the other row of spaces; and
(2) 
Trees required by this section shall be at least 2.5 inches in diameter at a height four feet above the ground at time of planting and shall be of a species characterized by suitability and hardiness for location in a parking lot. To the extent practicable, existing trees shall be retained and used to satisfy this section. Native trees and shrubs shall be planted wherever possible, including species such as lilac, viburnum, day lilies, ferns, red twig, dogwood, oak, maple, sycamore, linden, hawthorne, birch, shadbush, etc.
Development shall include the following components:
A. 
Provide long-term, covered bicycle parking areas;
B. 
Provide well-lit transit shelters where necessary;
C. 
Pedestrian-oriented features such as walkways, pergolas, outdoor sitting plazas, landscaped Open Space, drop-off areas, and recreational facilities shall be emphasized, and bike racks shall be provided in appropriate locations throughout the site; and
D. 
Tree-lined or otherwise appropriately landscaped pedestrian paths and walkways shall link together areas designated as Open Space within the site, and wherever possible, to adjoining public areas.
A. 
Installation. All utility lines, and/or other subsurface facilities within the street rights-of-way shall be installed prior to the placement of the Roadway subbase materials. All electrical and communications lines shall be installed underground. Communications lines shall include, but not be limited to, telephone, internet and cable;
B. 
Identification. The Applicant shall provide and install utility identification tape for all underground utility installations. The tape shall be placed in the trench a minimum of 12 inches above the pipe, conduit or cable and not less than 12 inches below the finished grade.
(1) 
Identification tape for utilities shall be traceable, durable, and either nonbiodegradable plastic or metallic, and shall be approximately six inches wide by 0.004 inch, or four mil, in thickness;
(2) 
The following colors shall be used unless otherwise specified in the State Building Codes:
(a) 
Orange: gas.
(b) 
Yellow: electric.
(c) 
Green: communications (telephone, cable, fire alarm).
(d) 
Blue: water.
(e) 
Red: sanitary sewer.
C. 
Easements. Wherever necessary, the Board shall require perpetual, unobstructed easements for sewers, storm drains, power lines, water mains and other utilities. Such easements shall be a minimum width of 20 feet, centered on the utility, and shall be indicated on the site plan approved pursuant to the Plan Approval decision by metes and bounds. The width of an easement may be changed if determined to be acceptable by the PAA or Department of Public Works:
(1) 
Easements for water, sewer, electric, telephone lines and drainage piping or channels shall be provided at locations determined by the Board and the Department of Public Works for the provision or extension of utilities within the Development or to adjacent properties;
(2) 
Where the Development is traversed by any open watercourse, drainageway, channel or stream, an easement shall be provided which substantially conforms to the lines of such features for the purpose of protection against encroachment or alteration;
(3) 
Where such easement or any part thereof crosses or appears on any developed lot in the Development, the deed for said lot shall provide a restriction that shall run with the lot, which prohibits any encroachment or alteration within such easement;
(4) 
Utility easements into or crossing any Open Space or protected area shall be prohibited unless approved by the Board upon the recommendation of the Department of Public Works;
(5) 
Where easements have been approved entering into or crossing Open Spaces or protected areas, they shall be restored to reflect as nearly as possible the conditions existing prior to the easement. Vegetative visual buffering required by the Planning Board in such easements shall be the responsibility of the developer and shall be reflected in the Development performance guarantee;
(6) 
Easements for access to parks and conservation lands abutting a proposed Development may be required by the Board. These easements shall be at a width determined by the Board to be sufficient for their purpose but will not normally exceed 20 feet in width;
(7) 
The developer may be required to obtain off-site drainage easements when, in the Board's opinion, the Development will cause an increase or change in the surface water volumes or velocities, either through open channels or through culverts into or onto any abutting properties; and
(8) 
Where the easement is accessible from the street, the side slope shall be no greater than four feet horizontal to one foot vertical. The first 20 feet of the easement from the back of sidewalk, or edge of Roadway, shall have a twelve-inch-deep base of gravel subbase material beneath the topsoil to support maintenance equipment.
A. 
The residential component shall be limited to three types of sign: name of site, orientation and direction, and to identify common Building spaces. At each principal entrance to the site, only one sign identifying the name and address of the Development shall be permitted. The sign shall be limited to identifying the name and address of the Development. Signs shall be made of natural materials, or have a natural appearance, and may not be interiorly illuminated. The PAA shall require the Applicant to submit a signage master plan showing the overall design, location, size and material for all proposed signs within the Development.
B. 
The following signs are prohibited in the OSGOD: roof signs, interior illuminated and ground signs (except those associated with the Development entrance).
The PAA shall approve signage within the nonresidential and mixed-use components of the district(s) as part of the site plan review process. One sign will be permitted at the principal entrance(s) to the nonresidential portion of the property. The sign shall be limited to identifying the name and address of the Development.
A. 
One sign per nonresidential Use is permitted. The attached or hanging sign shall not exceed, in total area, more than 10% of the dimensional elevation of the commercial Building as determined by the Building frontage multiplied by the floor-to-ceiling height of the individual business or as specified in applicable sections of the bylaw;
B. 
For premises having multiple occupants, a single sign identifying those occupants is permitted. The total area of attached signs, including this one, shall not exceed 10% of wall area;
C. 
Temporary unlighted signs inside windows, occupying not more than 20% of the area of the window, requires no sign permit;
D. 
No sign shall project more than three feet over any public right-of-way. The sign shall be covered by appropriate liability insurance as determined by the Building Inspector and verified by a certificate of insurance filed with the Town Clerk;
E. 
Building directories shall be located inside of the Building;
F. 
Traffic control orientation and guidance signs located on private property, up to four square feet in area, displayed for purposes of direction or convenience, including signs identifying parking, fire lanes, rest rooms, freight entrances and the like;
G. 
Design standards for signs:
(1) 
These standards are not mandatory.
(2) 
Sign content normally should not occupy more than 40% of the sign background, whether a signboard or a Building element.
H. 
Environmental relationship.
(1) 
Overhanging signs should be used only in such circumstances as on side streets where overhanging positioning is necessary for visibility from a major street;
(2) 
Sign brightness should not be excessive in relation to background lighting levels, e.g., averaging not in excess of 100 foot-lamberts and not in excess of 20 foot-lamberts in unlighted outlying areas.
I. 
Building relationship.
(1) 
Signs should be sized and located so as to not interrupt, obscure or hide the continuity of columns, cornices, roof eaves, sill lines or other elements of Building structure. Clutter should be avoided by not using support brackets extending above the sign or guy wires and turnbuckles.
J. 
Sign master plans. Notwithstanding anything to the contrary to the language contained in §§ 195-17.42 and 195-17.43, an Applicant may, in lieu of seeking compliance with the sign provisions described, propose a master plan for signs to be permitted on the premises by the PAA. Such sign master plan shall include a listing of each sign type, square footage, location, height, color, materials, and such other information as may be requested by the PAA to confirm that the master plan, once implemented, shall consist of a single coordinated and clear plan for signage within said premises which generally conforms to the guidelines described in §§ 195-17.42 and 195-17.43, as applicable.
Private Roadways shall be allowed in OSGOD.
A. 
While Roadway surface widths may be narrower than widths associated with a traditional subdivision, the durability of private Roadway surfaces and subsurfaces within an OSGOD should be designed based on standard engineering principles. Waivers of the following standards may be granted when appropriate. The following criteria apply:
Roadway Criterion
Minimum
Maximum
Minimum ROW width (feet)
50
60
Minimum pavement width (feet)
18
26
Minimum center line curve radius (feet)
225
250
Minimum tangent length between reverse curves (feet)
150
150
Minimum intersection corner curb radius (feet)
40
40
Minimum horizontal and vertical site distance (feet)
200
250
Center line profile grade - maximum
8%
7%
Center line profile grade - minimum
1%
1%
Vertical curve - minimum length (feet)
100
100
Vertical curve: K value - crest
30
30
Vertical curve: K value - sag 40
40
40
Pavement cross slope - normal crown
3%
3%
Maximum superelevation
6%
6%
B. 
The PAA shall encourage narrow pavement widths for traveled ways when appropriate. Pavement widths for traveled ways (excluding on-street parking spaces) shall not be less than 18 feet or more than 26 feet for two-way traffic, or less than 14 feet for one-way traffic. The PAA will have discretion to waive these standards when considering public safety and circulation issues, but under no circumstance shall vehicular ways be less than 14 feet wide.
C. 
Parking and vehicle access:
(1) 
Provide for continuous sidewalks that are minimally broken within a block by vehicular access.
(2) 
Unstructured surface parking areas facing the main street frontages are discouraged.
(3) 
Parking areas shall be set back from Structures, property lines and internal ways by a minimum of 10 feet.
(4) 
Multipurpose parking areas paved with unit pavers are encouraged (i.e., areas that serve both parking and public Open Space needs).
D. 
All two-way traveled ways shall provide a pedestrian sidewalk of a minimum six-foot width on both sides of the Roadway. All sidewalks shall be of standard concrete or brick set in concrete and are encouraged where applicable. Minor ways may provide a pedestrian sidewalk on a minimum of one side of the Roadway. On cul-de-sac turnarounds and at intersections, vertical granite curbing shall be required. Vertical granite curb inlets with curb transition sections shall be required at the back of catch basins, on grades over 6%, and at the intersections with arterial streets.
E. 
Crosswalks with handicap-accessible curb cuts shall be provided at all intersections. All crosswalks and curb cuts shall comply with the requirements of the Massachusetts Architectural Access Board (MAAB) and/or Americans with Disabilities Act (ADA) requirements.
F. 
Streetscape elements shall be encouraged, including:
(1) 
Sidewalks and crosswalks as noted above;
(2) 
Ornamental streetlights, 16 feet maximum height on minor roads, 24 feet maximum height on major roads;
(3) 
Brick, concrete or other specialty pavements at Building entrances;
(4) 
Ornamental fences of less than 30 inches in height, when appropriate;
(5) 
Ornamental bollards to direct pedestrian traffic and define public space.
A. 
Stormwater drainage systems shall be subject to the most recent Massachusetts laws, regulations, polices and guidelines, including but not limited to the DEP Stormwater Management Policy, as amended, as well as local bylaws.
B. 
The design, construction and maintenance of stormwater systems shall be consistent with the following:
(1) 
Detention/Retention basin side slopes. Basin area side slopes shall be kept as close as possible to natural land contours; i.e., 10% or less wherever possible. A maximum 3:1 side slope shall be constructed for the interior of the basin areas. For security purposes, fencing may be required by the PAA. Drainage basins shall be designed to facilitate access for maintenance vehicles and personnel;
(2) 
Drainage easements. If it is necessary to carry drainage across lots within the Development, storm drainage easements shall be provided, of such width and construction as will be adequate to accommodate the volume and velocity of the run-off. However, no such easement shall be less than 30 feet in width. If a proposed drainage system would carry water across land outside the Development boundaries to an approved outfall, appropriate drainage rights shall be secured by the Applicant at the Applicant's expense, and shall be referenced on the 40R Plan;
(3) 
Discharging runoff directly into rivers, streams, watercourses, or enlarging the volume, rate or further degrading the quality of existing discharges/runoff is prohibited. Runoff shall be routed through vegetated swales, using native species and other structural and nonstructural systems designed to increase time of concentration, decrease velocity, increase infiltration, allow suspended solids to settle and remove pollutants. Such systems will utilize overland flow and re-infiltration as priority techniques for the treatment of run-off;
(4) 
Retention and detention ponds, and methods of overland flow may be used to retain, detain and treat the increased and accelerated runoff which the Development generates;
(5) 
There shall be a minimum of two feet of naturally occurring soils between the detention basin bottom and the maximum annual groundwater table;
(6) 
Water shall be released from detention ponds at a rate and in a manner approximating the natural conditions which would have occurred before development;
(7) 
Intermittent watercourses such as swales shall be vegetated;
(8) 
The first one inch of runoff from impervious surfaces, such as rooftops and paved surfaces, shall be treated in the site of the Development;
(9) 
Runoff from parking lots and streets shall be treated to remove oil and sediments. Catch basins shall be provided with hoods; in the alternative, drainage outfalls shall discharge to low-velocity "vegetated treatment" swales;
(10) 
The use of drainage facilities and vegetated buffer zones as Open Space and conservation areas shall be encouraged; and
(11) 
Neighboring properties shall not be affected by flooding from excessive runoff.
A. 
Installation. The Applicant shall be responsible for installing water facilities, including, but not limited to, water supply, pipes, hydrants, hydrant markers, gates, valves, and all other related appurtenances, in accordance with the regulations and master plan of the Water Department. Any extension of an existing pipe and construction of new pipes requires approval from the Water Department. Building service pipes and appurtenances from the system piping to the exterior line of the street right-of-way shall be constructed for each lot unless the Board of Health has approved individual wells. Said water facilities shall be shown on the 40R plan.
B. 
Fire hydrants. Fire hydrants shall be required throughout the entire Development. Fire hydrants, with hydrant markers, shall be located not more than 500 feet apart; shall be approved, in writing, as to location by the Fire Chief and the DPW; and shall be shown on the 40R Plan.
C. 
Extensions. Reasonable provisions shall be made for extension of the water system and pipes to adjoining property, including installation of water gates. Appropriate easements may be required.
A. 
Installation. In the event that the Town sanitary sewer system is located within an existing public way within 400 feet measured along the existing public way or proposed Roadway of the Development, the Applicant shall be responsible for connecting all lots to the sewerage system unless there are legal, design or operational considerations, in which case alternative arrangements for sewage disposal, such as through the existing on-site sewage treatment plant or other methods permitted by law, may be utilized. If applicable, connection to the system shall require an approval from the DPW, and any other required approvals, including, but not limited to approvals issued by the Greater Lawrence Sanitary District, and a permit for extension/connection of the sewer system issued by the Massachusetts Department of Environmental Protection's Division of Water Pollution Control.
A. 
Installation. All electrical and communications lines shall be installed underground. Communications lines shall include, but not be limited to, telephone and community antenna television cable.
B. 
Electric lines. The electrical power distribution shall be installed in accordance with the specifications of the Rules and Regulations of the Department of Public Works of the Town of North Andover in effect at the time of application.
Street signs shall be installed at all intersections in conformity with the specifications of the Department of Public Works. The signposts at the intersection of each street with any other street shall have affixed thereto a sign designating such street as a private way.
Monuments shall be four feet long, six-inch square concrete or granite, and shall be installed at all Roadway intersections, at all points of change in direction or at curvature of Roadways, at two property corners of all new lots and at any other points where, in the opinion of the Board, permanent monuments are necessary.
A. 
Monument spacing. Monuments located in the street right-of-way shall be spaced so as to be within sight of each other, the sight lines being contained wholly within the street right-of-way limits. The maximum interval shall be 1,000 feet;
B. 
Monument materials. Monuments shall be standard granite markers of not less than four feet in length and not less than five inches square, and shall have a drill hole in the center. If subsoil conditions prohibit installation of four-foot monuments, with advance approval by the Board, monuments meeting alternative specifications shall be installed. Monuments shall be set flush with the finished grade; and
C. 
Monument certification. No permanent monuments shall be installed until all construction which would destroy or disturb the monuments is completed. Placement and location of bounds are to be certified by a registered professional land surveyor after installation of the street, and shall be shown on the "as-built" or record plans.
A. 
Residential Mixed-Use Zone.
(1) 
Location: as shown on the OSGOD Map.
(2) 
Building type. The Dwelling Units in the Residential Mixed-Use Zone may be situated in a single Structure or in multiple Structures.
(3) 
Nonresidential Uses. If a Building containing residential Uses also includes permitted retail, restaurant, and professional services or other Uses in the Residential Mixed-Use Zone, the nonresidential Uses shall be centrally located on the ground floor of the Building in which they are contained. Notwithstanding the foregoing, nonresidential Uses are preferred, but not required, to be located in Buildings containing residential Uses, and nonresidential Uses may be located in Buildings which are separate from Buildings containing residential Uses as long as the nonresidential Use and Building are designed to complement the primary residential Use.
B. 
Mixed-Use Development Zone.
(1) 
Location: as shown on the OSGOD Map.
(2) 
Building type. For Buildings which include a mix of residential and nonresidential Uses, the Dwelling Units in such Buildings shall be situated over the allowed nonresidential space. Buildings may also be constructed which contain either solely residential Uses or solely nonresidential Uses.
(3) 
Nonresidential Uses. Nonresidential Uses are not required to be located in Buildings containing residential Uses, and nonresidential Uses may be located in Buildings which include no residential Uses.
C. 
Business Opportunity Development Subzone.
(1) 
Permitted Uses in the Business Opportunity Development Subzone shall not exceed 150,000 square feet per Development unless waived by the PAA.