DIMENSIONAL STANDARDS
402 DIMENSIONAL STANDARDS
A. General Standards Table 4-1: Residential District Dimensional Standards establishes the dimensional standards for the residential districts. These regulations apply to all uses within each district unless a different standard is listed for a specific use.
B. Front Setback Calculation The front setback requirement in residential districts is a required build-to zone calculated according to an averaging provision, as follows:
1. The build-to zone is calculated as the average of the front setbacks of developed lots within 100 feet on either side of the subject lot on the same side of the street as the subject lot. Any lots within this distance that are only partially within this 100 feet are also included in the calculation. The resulting calculation can be increased or decreased by five feet to establish the build-to zone.
2. If there are no buildings on the same side of the street, developed lots within 100 feet in both directions on the opposite side of the street are used for averaging to calculate the required minimum front setback. Any lots within this distance that are only partially within this 100 feet are also included in the calculation. The resulting calculation can be increased or decreased by five feet to establish the build-to zone.
3. If there are no buildings on the same side or the opposite side of the street, the required front buildto zone is set as the area between 5% and 15% of the lot depth.
C. Interior Side Setback Applicability
1. For rowhouse dwellings, interior side yards are required only for end units.
D. Existing Lots Where a standard is indicated as applicable to “existing” lots, the standard is applicable to lots recorded prior to the effective date of this Ordinance. Where a standard is indicated as applicable to “new subdivisions,” the standard is applicable to new lots created by subdivision as of or after the effective date of this Ordinance.
E. RP District Conversions The conversion of an existing residential structure to a non-residential use in the RP District shall comply with the dimensional standards for the original type of residential structure. Structures originally constructed as or new structures constructed for non-residential uses are subject to the standards for nonresidential uses.
F. RP District Design Requirements When new and existing structures are to be used for non-residential purposes, the principal structure shall be residential in character. The structure shall meet, to the extent possible, the design standards for the dwelling type. The structure and any non-residential use within shall maintain a residential appearance from the exterior, and the site shall be designed consistent with residential uses in the surrounding neighborhood including similar landscaping and minimal paving for parking and driveways.
| TABLE | 4-1: RESIDENTIAL | DISTRICT DIMENSIONAL | STANDARDS | ||
| SF = | Single-Family // 2F = Two-Family | // 3F = Three-Family | // RH = Rowhouse // MF | = Multi-Family // NR = | Non-Residential |
| R-1A | R-1 | R-3 | R-4 | RP | |
| Bulk Standards | |||||
| Minimum Lot Area | Existing Lots: None New Subdivisions not for RH: 7,500sf New Subdivisions for RH: None | Existing Lots: None New Subdivisions not for RH: 5,000sf New Subdivisions for RH: None | Existing Lots: None New Subdivisions not for RH: 5,000sf New Subdivisions for RH: None | Existing Lots: None New Subdivisions not for RH: 3,500sf New Subdivisions for RH: None | Existing Lots: None New Subdivisions not for RH: 5,000sf New Subdivisions for RH: None |
| Minimum Lot Width | Existing Lots: None New Subdivisions not 75’ for RH: New Subdivisions for RH: None | Existing Lots: None New Subdivisions not for RH: 50’ New Subdivisions for RH: None | Existing Lots: None New Subdivisions not for RH: 50’ New Subdivisions for RH: None | Existing Lots: None New Subdivisions not for RH: 35’ New Subdivisions for RH: None | Existing Lots: None New Subdivisions not for RH: 50’ New Subdivisions for RH: None |
| Maximum Building Height | 40’, not to exceed 3 stories Lots of 2,500sf or less, except for RH: 32’, not to exceed 2 stories | 40’, not to exceed 3 stories Lots of 2,500sf or less, except for RH: 32’, not to exceed 2 stories | 45’, not to exceed 3 stories Lots of 2,500sf or less, except for RH: 32’, not to exceed 2 stories | 45’ Lots of 2,500sf or less, except for RH: 32’, not to exceed 2 stories | 45’ Lots of 2,500sf or less, except for RH: 32’, not to exceed 2 stories |
| Maximum Building Coverage | 35% | 45% | SF, 2F, 3F, MF, NR: 45% RH: 55% | SF, 2F, 3F: 45% RH, MF, NR: 55% | SF, 2F, 3F: 45% RH, MF, NR: 55% |
| Maximum Impervious Surface Coverage - Front Yard | SF, 2F, 3F, MF, NR: 33% RH: None | SF, 2F, 3F, MF, NR: 33% RH: None | SF, 2F, 3F, MF, NR: 33% RH: None | SF, 2F, 3F, MF, NR: 33% RH: None | SF, 2F, 3F, MF, NR: 33% RH: None |
| Maximum Impervious Surface Coverage - Rear Yard | SF, 2F, 3F, MF, NR: 50% RH: None | SF, 2F, 3F, MF, NR: 50% RH: None | SF, 2F, 3F, MF, NR: 50% RH: None | SF, 2F, 3F, MF, NR: 50% RH: None | SF, 2F, 3F, MF, NR: 50% RH: None |
| Total Maximum Impervious Surface Coverage | 50% | 65% | 65% | SF, 2F, 3F, RH: 65% MF, NR: 70% | 65% |
| Total Minimum Pervious Surface Coverage | 1,000 sf | 1,000 sf | SF, 2F, 3F, MF, NR: 1,000 sf RH: 400 sf per unit | SF, 2F, 3F, MF, NR: 1,000 sf RH: 400 sf per unit | SF, 2F, 3F, MF, NR: 1,000 sf RH: 400 sf per unit |
| Setback Requirements | |||||
| Front Setback Zone | SF, 2F, 3F, MF, NR: Sec. 402.B RH: 5’ | SF, 2F, 3F, MF, NR: Sec. 402.B RH: 5’ | SF, 2F, 3F, MF, NR: Sec. 402.B RH: 5’ | SF, 2F, 3F, MF, NR: Sec. 402.B RH: 5’ | SF, 2F, 3F, MF, NR: Sec. 402.B RH: 5’ |
| Minimum Interior Side and Minimum Corner Side Setback | Lot width less than 60’: 6’ Lot width 60’ or more: 10’ | Lot width less than 60’: 6’ Lot width 60’ or more: 10’ | SF, 2F, 3F, MF, NR: Lot width less than 60’: 6’ Lot width 60’ or more: 10’ RH: 6’ | 6’ | SF, 2F, 3F, MF, NR: Lot width less than 60’: 6’ Lot width 60’ or more: 10’ RH: 6’ |
| Minimum Rear Setback | 30’ | 30’ | SF, 2F, 3F, MF, NR: 30’ RH: 20’ | SF, 2F, 3F, MF, NR: 30’ RH: 20’ | SF, 2F, 3F, MF, NR: 30’ RH: 20’ |