Petworth Zoning Overview

Petworth is a neighborhood in Ward 4 of Washington, DC, with a population of approximately 18,067 residents. Located in Northwest DC, Petworth is the southernmost neighborhood in Ward 4, notable for its broad boulevards, circles, and rich architectural variety of 1920s-era porch-front rowhouses with columns. Petworth is bounded by Georgia Avenue NW to the west, Rock Creek Church Road to the north, and merges with Park View and Columbia Heights to the south.

Petworth is known as a culturally vibrant, diverse, and family-friendly neighborhood with tree-lined streets and a walkable commercial corridor. The neighborhood is accessible via the Georgia Ave–Petworth Metro station on the Green Line of the Washington Metro. Home values in Petworth are generally more affordable than comparable central DC neighborhoods, with rowhouses typically ranging from $525,000 to $1.28 million.

All zoning in Petworth is administered by the DC Office of Zoning (DCOZ):

• DCOZ: dcoz.dc.gov | (202) 671-3500
• Interactive Zoning Map: maps.dcoz.dc.gov/zr16
• DC Zoning Regulations (Title 11 DCMR): dcregs.dc.gov
• DC Zoning Handbook: handbook.dcoz.dc.gov
• Building Permits — DC Department of Buildings (DOB): dob.dc.gov | (202) 671-3500
  • Address: 1100 4th Street SW, Washington, DC 20024
• Advisory Neighborhood Commissions: ANC 4C and ANC 4B (Ward 4)

Zoning Districts

Petworth's zoning falls under DC's 2016 Zoning Regulations (ZR16). The neighborhood is predominantly RF-1 rowhouse zoning, with MU-4 along commercial corridors:

• RF-1 (Residential Flat, Low Density) — The dominant zone for Petworth's residential blocks. RF-1 permits rowhouse development with up to two dwelling units per lot and a maximum height of 40 feet. This zone covers the characteristic 1920s-era porch-front rowhouses that define Petworth's streetscape. RF-1 lots are found throughout the neighborhood's interior residential blocks.

• MU-4 (Mixed-Use, Medium Density) — Applied to the Georgia Avenue NW and Upshur Street NW commercial corridors. MU-4 permits retail, restaurants, offices, and residential uses in buildings up to approximately 50 feet. The 4422–4424 Georgia Avenue NW mixed-use building is an example of contemporary MU-4 development along the corridor. Upshur Street NW also features a concentration of neighborhood-serving retail and restaurants.

• RA-1 (Residential Apartment, Low Density) — Present in some areas of Petworth, particularly near transit nodes. RA-1 permits low-rise apartments and other residential uses up to 45 feet in height.

For the precise zone applicable to any specific address, use the DC interactive zoning map or contact DCOZ at (202) 671-3500.

Note on setbacks: In DC rowhouse zones (RF), setbacks are generally governed by the established building line rather than fixed numerical setbacks. For exact requirements for your property, contact DCOZ at (202) 671-3500 or consult Title 11 DCMR at dcregs.dc.gov.

Georgia Avenue–Petworth Metro Station and Corridor Plan

The Georgia Avenue–Petworth Metro Station and Corridor Plan (approved by DC Council in 2006) covers Georgia Avenue from Decatur Street NW (Ward 4) to Euclid Street NW (Ward 1). The plan uses transit-oriented development (TOD) principles around the Georgia Ave–Petworth Metro station to guide growth and development on Georgia Avenue while preserving neighborhood character. Key goals include encouraging quality neighborhood-serving retail, increasing housing production near the Metro, and balancing growth with the quality of life in the community.

ADU Rules

DC permits accessory dwelling units (ADUs), referred to as "accessory apartments" in DC zoning regulations, under Title 11 DCMR. In Petworth's RF-1 zone, up to two dwelling units per lot are permitted as principal uses (a two-unit flat model). Note that the RF zone framework is different from the R zone accessory apartment rules:

• RF-1 zone: Two dwelling units permitted per lot as principal uses — this is the "two-unit flat" model. The accessory apartment framework of Title 11 DCMR does not apply in RF zones.
• RA-1 zone: Accessory apartments may be available under Title 11 DCMR, subject to size and occupancy requirements.

Contact DCOZ at (202) 671-3500 before undertaking any ADU or second-unit project.

Development Process

Development in Petworth follows the standard DC development process:

1. Zoning Verification — Look up your property on the DC zoning map or contact DCOZ at (202) 671-3500
2. Building Permit — Apply through the DC Department of Buildings (DOB) at dob.dc.gov or in person at 1100 4th Street SW
3. Board of Zoning Adjustment (BZA) — For variances or special exceptions, apply through DCOZ
4. Zoning Commission — Map amendments (rezonings) are heard by the DC Zoning Commission
5. ANC Review — ANC 4C and ANC 4B (Ward 4) provide community input on development applications
6. Inspections and Certificate of Occupancy — Schedule inspections through DOB

Key Considerations

• Most residential blocks are zoned RF-1 — the two-unit flat model applies, not the accessory apartment framework
• Georgia Avenue NW and Upshur Street NW are zoned MU-4 for commercial and mixed-use development
• The Georgia Ave–Petworth Metro station (Green Line) is a key transit asset influencing development pressure
• The Georgia Avenue–Petworth Metro Station and Corridor Plan (2006) guides long-term growth
• Petworth is not a designated historic district; no HPRB overlay applies neighborhood-wide
• Check for flood zones using FEMA's flood map service
• DC Open Data at opendata.dc.gov provides parcel-level data and permit history

Disclaimer: This guide provides general information about zoning in the Petworth neighborhood of Washington, DC and should not be relied upon as legal advice. Zoning codes are subject to change. Always verify current regulations directly with the DC Office of Zoning (DCOZ), the DC Zoning Regulations (Title 11 DCMR), and the DC Department of Buildings (DOB) before making development decisions.