1221 12th Street Northwest, Washington
technical data · neighborhood and transit
Quick answers
- Does 1221 12th Street Northwest have open permits or code violations?
- DC Department of Buildings lists 14 permits, 12 not closed, and 0 violations.
- What is the 2026 conforming loan limit in District of Columbia?
- $1,249,125 for a single-unit home, per FHFA. Larger loans are jumbo loans.
- Is radon a problem here?
- EPA radon zone 2, moderate potential.
- What natural disasters is 1221 12th Street Northwest at risk for?
- FEMA's National Risk Index rates the area very low overall, with elevated heat wave risk.
Permits and code violations
12 permits not closed out. Unfinished permits pass to the next owner.
- Supplemental Jul 2026Permit issued
- Supplemental Jul 2026Permit issued
- Supplemental Dec 2025Completed
- Supplemental Jun 2025Permit issued
- Supplemental Jun 2025Permit issued
- Construction Apr 2025Permit issued
- Supplemental Sep 2024Expired
- Supplemental Jun 2024Expired
- Supplemental May 2024Expired
Mechanical trade permit
- Home occupation Dec 2023Permit issued
- Supplemental Jul 2023Permit issued
- Supplemental Dec 2022Completed
DC Department of Buildings
Safety and environment
FEMA natural hazard risk
Very Low
Highest for this area: heat wave. These drive insurance cost here.
FEMA National Risk Index, census tract
Leaking fuel tanks
42 within 1,650 ft
Nearest: King Housing Inc, 1220 12th St Nw (200 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
300 ft
Washington Gas and 1 more within half a mile. Former industrial land in EPA's cleanup and reuse program.
EPA ACRES Brownfields
Toxic release facility
2,400 ft
Us Doj Bureau Of Alcohol Tobacco Firearms Explosives Hq and 3 more within a mile. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
Historic listing nearby
200 ft
Plymouth, The and 2 more listings close by. Exterior changes can need preservation review; listed buildings can qualify for rehabilitation tax credits.
National Park Service, National Register
High-voltage line
800 ft
138 kV line run by POTOMAC ELECTRIC POWER CO.
HIFLD transmission lines
Radon potential
Moderate
Average indoor levels of 2 to 4 pCi/L. EPA still suggests testing ground-floor and basement units.
EPA and USGS Geologic Radon Potential Map
Nearest public schools
1,100 ft
Thomson ES (1,100 ft), Center City PCS - Shaw (1,550 ft), Seaton ES (1,700 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
3.8 mi
Reagan National (DCA). Homes this close can sit inside the 65 dB DNL noise contour. Visit at peak hours and check the airport's noise map.
FAA large-hub airports
Conforming loan limit 2026
$1,249,125
District of Columbia. Mortgages up to this amount qualify for Fannie Mae and Freddie Mac pricing. Above it, the loan is a jumbo with stricter terms.
FHFA Conforming Loan Limit Values, one-unit
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More on 12th Street Northwest
All addressesViewing recommendations
What's worth checking in person before deciding.
- Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
- This is a house, not an apartment. Check the lot boundaries, car access, and how water drains from the yard after rain, including whether the neighboring lot sits higher and could send water toward the property.
- Knock on a neighboring gate and ask about noise, pets, flooding, or other issues common in the area.
- Check exactly where you'd park: a spot in the yard or garage, or street parking, and how crowded the street gets in the evening.
- Ask what heating system is in place (own boiler, wood, gas) and request the last winter month's bills.
- Check the sewer connection (public network or septic tank) and the water source (public network or well), including pressure and water quality.
- Ask to see the construction documents (permit, sign-off) and check for visible cracks on the facade or in the attic/basement.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.