It is the purpose of this Part 1 to:
A. 
Ensure public safety, health and welfare insofar as they are affected by building construction;
B. 
Ensure the safety to life and property from all hazards incident to the design, erection, repair, removal, and demolition of buildings;
C. 
Protect, maintain and enhance the public safety, health, and welfare by:
(1) 
Maintaining privacy and space between properties, ensuring adequate air and light, and maintaining safe passageways between buildings;
(2) 
Protecting the Town's distinct character by encouraging the retention of open space and shade trees on residential lots, the preservation of existing houses, and the construction of new buildings that are compatible with existing buildings in terms of setbacks and height;
(3) 
Establishing minimum requirements to control the adverse impacts associated with stormwater runoff from developed and developing land; and
(4) 
Reducing stream channel erosion, pollution, siltation and sedimentation and local flooding; and
D. 
Ensure compliance with all applicable Town, county, state and federal laws.
[Ord. No. 1-88, eff. 6-29-1988 (formerly Ch. 6, § 6-101, of the 1989 Code); amended by Res. No. 6-21-1, 11-1-2021, eff. 12-7-2021; Res. No. 9-23-1, 12-4-2023, eff. 1-9-2024]
As used in this Part 1, the words set forth below shall be defined as follows:
ACCESSORY BUILDING
A building subordinate to and located on the same lot as a main building, the use of which is incidental to the use of the main building or to the use of the land. An accessory building is not attached by any part of a common wall or common roof to the main building.
ACCESSORY DWELLING UNIT
A second dwelling unit that is an accessory use and is located within a main building or an accessory building.
ADJOINING AND CONFRONTING PROPERTY
Land in the Town of Somerset which touches the boundary line of other property at least at one point, which may be a corner, or which would do so except for an intervening road, street, or right-of-way.
BUILDING
Any permanent structure, whether a main or accessory structure, having one or more stories and a roof, designed primarily for the shelter, support or enclosure of persons or property of any kind, and including all parts of the structure, including, but not limited to, projections, elements, appurtenances, and equipment that is/are attached to or located within ten (10) feet of a building surface. "Building" excludes projections, elements, appurtenances, and equipment that is/are constructed at or below grade, such as a window well or patio.
BUILDING HEIGHT
A. 
For a main building, the building height is the vertical distance measured from the average elevation of the grade along the facade of the building facing the front lot line to:
(1) 
The highest point of roof surface regardless of roof type; and
(2) 
The mean height level between the eaves and ridge of a gable, hip, pyramidal, mansard, or gambrel roof.
B. 
For an accessory building, the building height is the vertical distance measured from the average elevation of the grade along the facade of the building facing the front lot line, or the facade facing the rear lot line, whichever is lower, to:
(1) 
The highest point of roof surface regardless of roof type; and
(2) 
The mean height level between the eaves and ridge of a gable, hip, pyramidal, mansard, or gambrel roof.
C. 
For the purpose of this definition, "grade" is either the finished development grade or the pre-development grade, whichever is lower. The pre-development grade is the grade that existed before the application for a building permit. Building height is separately measured on both street-facing sides of a corner lot.
DESIGN MANUAL
The Maryland Stormwater Design Manual published by the Maryland Department of the Environment as the same may be amended, or any successor publication, as may be modified by resolution adopted by the Town Council from time to time.
DETACHED ACCESSORY DWELLING UNIT
A dwelling unit that is a detached accessory building or part thereof.
DWELLING UNIT
A building or portion of a building providing complete living facilities for not more than one household, including, at a minimum, facilities for cooking, sanitation, and sleeping.
ENVIRONMENTAL SITE DESIGN (ESD)
Using small-scale stormwater management practices and nonstructural techniques to mimic natural hydrologic runoff. Methods for designing ESD practices are specified in the Design Manual; provided, however, that for purposes of this chapter, the following shall be considered structural devices and not ESD practices: (i) dry wells; (ii) rain tanks; and (iii) rainwater harvesting (cisterns and rain barrels). For purposes of this chapter, EDS practices include the following: (i) green roofs; (ii) permeable pavements; (iii) reinforced turf; (iv) disconnection of rooftop and non-rooftop runoff; (v) sheetflow to conservation areas; (vi) submerged gravel wetlands; (vii) landscape infiltration; (viii) micro-bioretention; (ix) rain gardens; (x) swales (grass, wet, and bio-swales); (xi) enhanced filters and (xii) such other practices designated as ESD by resolution adopted by the Town Council from time to time.
ESTABLISHED BUILDING HEIGHT
A height building line, which is the average height of all main buildings that are: a) within 300 feet of each side property line of the proposed construction site; b) along the same side of the street; c) between intersecting streets or to the point where public thoroughfare is denied; d) existing at the time the building permit application is filed; e) conforming to the maximum building height restriction, not unlawfully constructed, and not constructed pursuant to a lawfully granted variance; or f) not located on a pipestem or flag-shaped lot. Corner lots are subject to the established building height of both of the streets.
ESTABLISHED BUILDING LINE
A front yard building restriction line, which is greater than the twenty-five-foot minimum required setback. The established building line shall be the average setback of all main buildings that meet the following criteria:
A. 
Are within three hundred (300) feet of any side lot line of the lot in question (excluding corner lots);
B. 
Are along the same side of the street;
C. 
Are between intersecting streets or to the point where public thoroughfare is denied;
D. 
Exist at the time the building application request is filed;
E. 
Are set back at least twenty-five (25) feet from the front lot line;
F. 
Were constructed pursuant to a valid building permit;
G. 
Were not constructed pursuant to a variance;
H. 
Are not located on a pipe-stem or flag-shaped lot;
I. 
Are not buildings on the subject lot; and
J. 
Are on properties that are at least fifty (50) feet wide at the twenty-five-foot minimum front setback.
IMPERVIOUS SURFACE
A surface which prevents or impedes infiltration, including, but not limited to, buildings, structures, and concrete or asphalt sidewalks, walkways, stoops, stairways, patios, swimming pools, driveways, and parking pads, and other similar surfaces, but excluding surfaces designated as permeable by resolution adopted by the Town Council from time to time.
INVASIVE SPECIES
Non-native organisms set forth on the List of Invasive Species adopted by resolution of the Town Council from time to time.
LOT
The land designated as a separate and distinct lot or parcel of land on a legally recorded subdivision plat or deed filed among the land records of the County. Where a distinct tract of land is comprised of more than one lot or parts thereof as shown on a subdivision plat, the separate lots and/or parts of lots shall constitute one lot for the purposes of this Part 1.
MAIN BUILDING
A building in which the principal use of the property is conducted.
NEW BUILDING CONSTRUCTION
The construction or erection of a new building, including any appurtenant surfaces, such as a patio, walkway, parking pad, or driveway.
ONE-YEAR STORM EVENT
A storm resulting in the rainfall depth set forth in the Design Manual for a one-year, twenty-four-hour storm event occurring in Montgomery County.
PERSON
Includes persons, firms, partnerships, corporations, estates, trusts, associations, and government institutions or agencies.
PLANTING PLAN
A drawing or detailed description of proposed landscaping and planting, including the number, size, species, and location(s) of the tree(s), shrub(s), and other plants to be planted, and the proposed schedule for completion of the plan, which must be less than 12 months from the date of permit approval, or such other time period as may be approved by the Town Council.
[Ord. No. 1-88, eff. 6-29-1988; amended by Ord. No. 8-92, eff. 8-24-1992; Ord. No. 1-95, eff. 7-27-1995; Ord. No. 2-97, eff. 12-10-1997; Res. No. 5-19, 10-17-2019, eff. 11-12-2019; Res. No. 8-20, 12-7-2020, eff. 1-21-2021 (formerly Ch. 6, § 6-102, of the 1989 Code); Res. No. 6-21-1, 11-1-2021, eff. 12-7-2021; Res. No. 12-21-1, eff. 3-15-2022; Res. No. 9-22-2, 11-7-2022, eff. 1-10-2023; Res. No. 9-22-3, 11-7-2022, eff. 1-10-2023; Res. No. 7-23-1, 8-7-2023, eff. 9-12-2023; Res. No. 9-23-1, 12-4-2023, eff. 1-9-2024; Res. No. 11-23-1, 1-8-2024, eff. 3-5-2024]