The High Density Residential Zone is intended to encourage the development of duplexes and other multi-family dwellings. It provides for high density uses in locations close to the downtown area or other locations which have suitable streets, utilities and other characteristics. Certain nonresidential uses are allowed if they will not detract from the character of this district. Land in the Hammond area that was in the Town's R-H zone has been placed in this zone.
The following uses and their accessory uses are permitted in the R-H zone if the Community Development Director determines that the uses conform to the standards in Sections 16.36.040 through 16.36.050, applicable Development Code standards, and other City laws:
A. 
Single-family detached dwelling.
B. 
Modular housing.
C. 
Manufactured home.
D. 
Duplex and townhome subject to standards of Chapter 16.184.
E. 
Triplex subject to standards of Chapter 16.184.
F. 
Multifamily housing development subject to standards of Chapter 16.188.
G. 
Residential home.
H. 
Residential (care) facility.
I. 
Day care.
J. 
A temporary dwelling for no more than six months while building a permanent residence.
K. 
Accessory structure no larger than 1,200 square feet, in conjunction with an existing residence on the same property and subject to the additional criteria under Chapter 16.180.
L. 
Master planned development with a minimum lot size of three contiguous acres, subject to the provisions in Chapter 16.224.
M. 
Transportation facilities and improvements subject to the standards of Section 16.20.040.
N. 
Similar uses as stated above.
O. 
Incidental sales of firewood, cut flowers, produce grown on the premises, lemonade, and similar items.
P. 
Home occupations.
Q. 
Accessory dwelling that complies with Section 16.180.040.
R. 
Homestay lodging subject to the standards in Chapter 8.24.
(Ord. 1175-A § 8, 2013; Ord. 1221 § 2, 2018; Ord. 1248 § 2, 2021)
The following uses and their accessory uses may be permitted when approved under Chapter 16.220:
A. 
Boarding, lodging or rooming houses.
B. 
Hospitals, sanitariums, rest homes, nursing or convalescent homes, medical clinic or office in conjunction with a residential facility.
C. 
Churches, synagogues, or other places of worship.
D. 
Parks, playgrounds and community centers.
E. 
Government buildings and uses subject to standards of Sections 16.36.040(C) and 16.36.050.
F. 
Public utility structure.
G. 
School: nursery, primary, elementary, junior or senior high: public or private.
H. 
Child care center.
I. 
Bed and breakfast.
J. 
Accessory dwelling subject to standards of Section 16.180.040.
K. 
Similar uses as stated above.
(Ord. 1175-A § 9, 2013)
The following development standards are applicable in the R-H zone:
A. 
Density Provisions.
1. 
Minimum lot area for a single-family detached dwelling: 4,500 square feet. Minimum density is 20 units per acre.
2. 
Minimum lot area duplex, townhome, rowhouse: 2,500 square feet per unit.
3. 
Minimum lot area for a triplex: 7,500 square feet.
4. 
Minimum lot area for a multifamily dwelling: 10,000 square feet.
5. 
Maximum density for multifamily structures: one dwelling unit per 1,600 square feet of site area.
6. 
Lot coverage: not more than 55% of an individual lot area shall be covered by buildings, except as may be permitted by conditional use permit or variance.
7. 
Minimum lot width at the front building line for single-family detached dwelling or multifamily dwelling: 50 feet.
8. 
Minimum lot width at the front building line for duplex, townhome, rowhouse: 25 feet per unit.
9. 
Minimum lot depth: 70 feet.
10. 
Maximum building height: 40 feet.
11. 
The lowest density which will be allowed in new subdivisions and other developments with four or more units that are located on sites without significant natural feature problems is five dwelling units per gross acre.
B. 
Setback Requirements.
1. 
Minimum front yard setback: 15 feet.
2. 
Minimum side yard setback: eight feet.
3. 
Corner lot minimum secondary street side yard setback: eight feet.
4. 
Minimum rear yard setback: 15 feet except accessory structures that meet the criteria of Section 16.280.020 may extend to within five feet of a rear property line.
5. 
Corner lot minimum rear yard setback: 10 feet.
C. 
Design Standards.
1. 
An entry door of 36-inch minimum width must face the front yard setback or onto a driveway.
2. 
A minimum of 20 square feet of glazing must be on the side of the dwelling facing a street.
3. 
Duplexes, townhomes, rowhouses and triplexes shall comply with the standards of Chapter 16.184.
4. 
Multifamily housing developments shall comply with the standards of Chapter 16.188.
D. 
Government Building. The following development standards are applicable:
1. 
Density provisions:
a. 
Minimum lot size, government building/uses: none.
b. 
Minimum lot width, government building/uses: none.
c. 
Minimum lot depth, government building/uses: none.
d. 
Maximum building height: 45 feet.
e. 
Maximum lot coverage, government building/uses: none.
2. 
Setback requirements:
a. 
Minimum front yard setback, government building: 15 feet.
b. 
Minimum side yard setbacks, government building: 10 feet.
3. 
Landscaping requirements shall comply with Chapter 16.124 of the Development Code.
4. 
Any government building shall comply with Chapter 16.116 of the Development Code.
(Ord. 1175-A § 10, 2013; Ord. 1234 § 1, 2020)
A. 
Outside sales and service areas shall be approved by the Warrenton Planning Commission if not enclosed by suitable vegetation, fencing or walls.
B. 
Outside storage areas shall be enclosed by suitable vegetation, fencing or walls, in conformance with Chapter 16.124.
C. 
All uses shall comply with access and parking standards in Chapters 16.116 and 16.128 except as may be permitted by conditional use or variance.
D. 
Signs shall comply with standards in Chapter 16.144.
E. 
All development shall comply with the wetland and riparian area protection standards of Chapter 16.156.
F. 
All other applicable Development Code requirements shall also be satisfied.
G. 
For any common boundary between an R-H zone and any other residential zone there shall be a visual buffer strip at least 10 feet wide to provide a dense evergreen landscape buffer which attains a mature height of at least eight feet.
H. 
All uses must comply with the criteria of Chapter 16.124, Landscaping, Street Trees, Fences and Walls.
I. 
Manufactured homes must comply with the criteria of Chapter 16.168.
J. 
A garage (attached or detached) or carport is required for each dwelling unit up to three units, and shall conform to the standards of Chapter 16.180. In place of garages, multifamily units are encouraged to provide storage facilities for residents subject to site design review.
K. 
All new sewer and water connections for a proposed development shall comply with all City regulations.
(Ord. 1242 § 3, 2020)