Petworth Home Renovation & Remodeling
Our design-build services for a Petworth home renovation are guided by the neighborhood's distinct housing stock and zoning. With many local homes being rowhouses built before 1960, projects from basement underpinning to adding a second unit must follow specific D.C. rules. We are a general contractor offering whole-home remodels, kitchen and bathroom updates, and basement finishing in Washington, D.C.
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Key Facts for Renovating in Petworth
A Petworth renovation project is often shaped by the area's pre-1960 rowhouse stock, RF-1 zoning rules that allow for a second unit, and historic district review for homes on Grant Circle.
- Housing
- In ZIP code 20011, 56% of owner-occupied homes are single-family attached houses (rowhouses) and 21% are detached; 58% of owner-occupied homes were built in 1939 or earlier and 84% before 1960. 56% of homes are owner-occupied; median home value $723,900.Source: U.S. Census Bureau, ACS 2020-2024 5-year (tables B25003, B25032, B25036, B25077), our sums by ZIP code
- Zoning (RF-1 rowhouse zone)
- Most of the rowhouse rules sit in the RF-1 zone: buildings and additions up to 35 feet and three stories, row dwellings up to 60% lot occupancy, a 20-foot minimum rear yard, and two dwelling units per lot (both in the main house, or one in the house and one in an accessory building). Check your lot on the D.C. zoning map first.Source: D.C. Office of Zoning, 11-DCMR Subtitle E (RF zones), sections 302 to 306; D.C. Office of Zoning, zoning map
- A second unit
- RF-1 allows two dwelling units per lot: both inside the main house, which is how a basement unit is added, or one in the house and one in an accessory building at the back of the lot.Source: D.C. Office of Zoning, 11-DCMR Subtitle E (RF zones), sections 302 to 306
- Historic review
- Grant Circle, in the middle of Petworth, became a historic district in 2015 (D.C. Inventory, April 2), so exterior work on the circle goes through HPO. For any other address, check the D.C. historic property map before planning exterior work.Source: DC Historic Sites, Grant Circle Historic District
- Who approves exterior work
- The Historic Preservation Office (HPO) can approve in-kind repair and replacement, small additions and minor alterations; sizable additions, major alterations and new construction go to the nine-member Historic Preservation Review Board (HPRB), which meets monthly. An HPO-approvable permit is typically cleared within 1 to 3 days of the Department of Buildings forwarding it.Source: D.C. Office of Planning, Historic Preservation Review Process for Property Owners
- Permit activity
- In 2025, 20011 was among the five D.C. ZIP codes that filed the most water heater permits.Source: D.C. Building Permits in 2025 (DOB, Open Data DC)
Read November 5, 2026.
What This Means for Your Petworth Renovation
With over half of Petworth's owner-occupied homes built before 1939, renovations often begin with the structure itself. For the area's classic porch-front rowhouses, this can involve basement underpinning to add headroom and usable living space, or a whole-home remodel to update layouts and systems. These older homes may require careful planning to integrate modern amenities while respecting the original construction. We design and build projects that address these specific needs, from finishing a basement to remodeling an entire historic rowhouse.
If your lot is in the RF-1 rowhouse zone, D.C. rules allow for two dwelling units. This creates an opportunity to add rental income or space for family. You can create this second unit by converting a basement into a separate apartment, or by building a new accessory building in the rear yard, as long as the main house also has a unit. Planning for a second unit requires following specific zoning rules for lot occupancy and rear yard size. We design and build basement apartments and other second units that follow these D.C. requirements.
Exterior renovations in Petworth require checking for historic district status. Homes within the Grant Circle Historic District are subject to review by the D.C. Historic Preservation Office (HPO) for any exterior work. For smaller projects like in-kind repairs or minor alterations, HPO can often provide approval directly. Larger projects, such as sizable additions or major alterations, are reviewed by the Historic Preservation Review Board. Any interior-only renovation, like a bathroom remodel or basement finishing that does not change the exterior, is outside this historic review process.
Petworth Renovation & Remodeling Projects
Where we work in Petworth
Petworth, Grant Circle, Sherman Circle, Brightwood Park, 16th Street Heights and the blocks around Georgia Avenue.
ZIP codes 20011.
Renovation questions from Petworth homeowners
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Phones answered every day, 10 AM to 9 PM
Washington, D.C., Northern Virginia, and Montgomery and Prince George's counties, MD