A. Intent Statement
The intent of the R-30 zone is to provide designated areas of the County for higher-density, multi-unit residential uses. The predominant use is residential in an apartment building, although detached house, duplex, and townhouse building types are allowed.
B. R-30 Zone, Standard Method Development Standards
To view the R-30 Zone, Standard Method Development Standards table in PDF format, click Table 4.4.14B
1. Site | Detached House or a Building for a Cultural Institution, Religious Assembly, Public Use, or a Conditional Use allowed in the zone | Duplex - Side | Duplex - Over | Townhouse | Apartment |
1. Site | Detached House or a Building for a Cultural Institution, Religious Assembly, Public Use, or a Conditional Use allowed in the zone | Duplex - Side | Duplex - Over | Townhouse | Apartment |
Site Area (min) | |||||
Site | 3,000 SF | 3,000 SF | 3,000 SF | n/a | n/a |
Site per unit | n/a | n/a | n/a | 3,000 SF | 3,000 SF |
Open Space (min) | |||||
Common open space (% of site) (See Section 6.3.5) | n/a | n/a | n/a | 35% | 50% |
Site Coverage (max) | |||||
Site coverage | n/a | n/a | n/a | 25% | 18% |
Specification for Site Coverage | |||||
a. In a development with townhouse or apartment building types, site coverage is calculated based on the area of the site minus any area for detached house and duplex lots. | |||||
2. Lot and Density | |||||
Lot (min) | |||||
Lot area | 3,000 SF | 1,500 SF | 3,000 SF | 1,000 SF | 12,000 SF |
Lot width at front building line | 30' | 15' | 30' | n/a | 75' |
Lot width at front lot line | 10' | 10' | 10' | n/a | n/a |
Frontage on street or open space | Required | ||||
Density (max) | |||||
Density (units/acre) | 14.50 | 14.50 | 14.50 | 14.50 | 14.50 |
Coverage (max) | |||||
Lot | 50% | 50% | 50% | n/a | n/a |
3. Placement | |||||
Principal Building Setbacks (min) | |||||
Front setback, public street | 20' | 20' | 20' | 20' | 30' |
Front setback, private street or open space | 4' | 4' | 4' | 4' | 20' |
Side street setback | 15' | 15' | 15' | 5' | 10' |
Side setback, abutting Agricultural, Rural Residential, Residential Detached, or Residential Townhouse zones | 6' | 6' | 6' | n/a | See Section 4.1.8.A |
Side setback, abutting all other zones | 4' | 4' | 4' | n/a | 10' |
Side setback, end unit | n/a | n/a | n/a | 3' | n/a |
Side setback between lot and site boundary | n/a | n/a | n/a | 5' | n/a |
Rear setback, abutting Agricultural, Rural Residential, Residential Detached, or Residential Townhouse zones | 20' | 20' | 20' | 20' | See Section 4.1.8.A |
Rear setback, abutting all other zones | 20' | 20' | 20' | 20' | 30' |
Rear setback, alley | 4' | 4' | 4' | 4' | 4' |
Rear setback between lot and site boundary | n/a | n/a | n/a | 10' | n/a |
Accessory Structure Setbacks (min) | |||||
Front setback, behind front building line | 10' | 10' | 10' | 10' | 10' |
Side street setback | 15' | 15' | 15' | 5' | 15' |
Side setback | 4' | 4' | 4' | 4' | 5' |
Rear setback | 4' | 4' | 4' | 0' | 5' |
Rear setback, alley | 4' | 4' | 4' | 4' | 4' |
Parking Setbacks for Surface Parking Lots (min) | |||||
Front setback | n/a | n/a | n/a | n/a | 30' |
Side street setback | n/a | n/a | n/a | n/a | 10' |
Side setback | n/a | n/a | n/a | n/a | 10' |
Rear setback | n/a | n/a | n/a | n/a | 10' |
Rear setback, alley | n/a | n/a | n/a | n/a | 0' |
4. Height | |||||
Height (max) | |||||
Principal building | 35' | 35' | 35' | 35' | 35' |
Accessory structure | 25' | 25' | 25' | 25' | 25' |
5. Form | |||||
Massing (max) | |||||
Units permitted in one row | n/a | n/a | n/a | 12 | n/a |
Building Orientation | |||||
Entrance facing street or open space | n/a | n/a | n/a | required | required |
Allowed Building Elements | |||||
Gallery/Awning | n/a | n/a | n/a | n/a | yes |
Porch/Stoop | yes | yes | yes | yes | yes |
Balcony | yes | yes | yes | yes | yes |
C. R-30 Zone, Optional Method Development Standards
To view the R-30 Zone, Optional Method Development Standards table in PDF format, click Table 4.4.14C
1. Site | MPDU Development | |||
Detached House | Duplex | Townhouse | Apartment | |
1. Site | MPDU Development | |||
Detached House | Duplex | Townhouse | Apartment | |
Dimensions (min) | ||||
Usable area | 11,700 SF | |||
Density (max) | ||||
Density (units/acre) | See Specification for Density | |||
Specification for Density | ||||
The density allowed for any application that includes more than 12.5% MPDUs, qualified under Chapter 25A
and rounded up to the nearest whole number of units, equals the density allowed under Sec. 4.4.14.B.2 plus an increase of: a. 0.88% for each 0.1% increase in MPDUs above 12.5%, up to and including 15%; b. 22% plus 0.16% for each 0.1% increase in MPDUs above 15%, up to and including 20%; or c. 30% plus 0.1% for each 0.1% increase in MPDUs above 20%. | ||||
Open Space (min) | ||||
Common open space (% of usable area) (See Section 6.3.5) | 25% | |||
Site Coverage (max) | ||||
Site coverage | n/a | n/a | 30% | 18% |
Specification for Site Coverage | ||||
a. In a development with townhouse or apartment building types, site coverage is calculated based on the area of the site minus any area for detached house and duplex lots. | ||||
b. In a development with the apartment building type, the Planning Board may increase the site coverage to 30% of a site’s usable area if the Planning Board finds that the application is providing at least 30% MPDUs, the increased site coverage is necessary for the redevelopment, and that there is still adequate open space for recreation and stormwater management. | ||||
2. Lot | ||||
Dimensions (min) | ||||
Lot area | 1,500 SF | 1,000 SF | 800 SF | 12,000 SF |
Lot width at front building line | Determined at site plan | |||
Lot width at front lot line | 15' | 15' | 14' | 50' |
Frontage on street or open space | Required | |||
Coverage (max) | ||||
Lot | 75% | 75% | n/a | n/a |
3. Placement | ||||
Principal Building Setbacks (min) | ||||
Front setback from public street | 10' | 10' | 10' | Determined at site plan |
Front setback from private street or open space | 4' | 4' | 4' | Determined at site plan |
Side street setback | 10' | 10' | 5' | Determined at site plan |
Side or rear setback | Determined at site plan | |||
Side or rear setback, abutting property not included in application | Equal to required setback for a detached house building type in the abutting zone under standard method | Equal to required setback for a detached house building type in the abutting zone under standard method and Section 4.1.8.A | ||
Rear setback, alley | 4' | 4' | 4' | n/a |
Accessory Structure Setbacks (min) | ||||
Front setback | 5' behind front building line | n/a | ||
Side street setback | Side street setback of principal building | n/a | ||
Side or rear setback | Determined at site plan | n/a | ||
Side or rear setback, abutting property not included in application | Equal to required setback for a detached house building type in the abutting zone under standard method | n/a | ||
Rear setback, alley | 4' | 4' | 4' | n/a |
Parking Setbacks for Surface Parking Lots (min) | ||||
Front setback | n/a | n/a | n/a | 30' |
Side street setback | n/a | n/a | n/a | 10' |
Side or rear setback | n/a | n/a | n/a | 0' |
Side or rear setback, abutting property not included in application | n/a | n/a | n/a | If the abutting property is a residential detached zone, the applicant must install the screening required under Section 6.5.3.C.6 options A or B. |
Specifications for Parking Setbacks for Surface Parking Lots | ||||
a. The Planning Board may reduce the front setback or side street setback for surface parking lots if: | ||||
i. the application is providing a minimum 30% MPDUs; ii. the Board finds the reduced setback is necessary for development due to a unique site constraint; and iii. the Applicant provides either the perimeter planting under Section 6.2.9.C.3.b, regardless of the zone of the abutting properties, or some other combination of landscaping and vegetated stormwater management facilities to meet the section’s intent. | ||||
4. Height | ||||
Height (max) | ||||
Principal building | 40' | 40' | 40' | 35' |
Accessory structure | 25' | 25' | 25' | 25' |
(Legislative History: Ord. No. 18-03, § 2; Ord. No. 18-08, § 9; Ord. No. 18-52, § 2; Ord. No. 19-35, § 1.)