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Washington

4410 42nd Street Northwest, Washington

Detached house

technical data · neighborhood and transit

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4410 42nd Street Northwest, WashingtonOpen map

Quick answers

Does 4410 42nd Street Northwest have open permits or code violations?
DC Department of Buildings lists 8 permits, 8 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 1, the highest potential. Test for radon before you buy.
What natural disasters is 4410 42nd Street Northwest at risk for?
FEMA's National Risk Index rates the area relatively low overall, with elevated heat wave risk.

Permits and code violations

8 permits not closed out. Unfinished permits pass to the next owner.

  1. Supplemental Jan 2026Permit issued
  2. Supplemental Jan 2026Permit issued
  3. Supplemental Jan 2026Permit issued

    Plumbing trade permit

  4. Supplemental Dec 2025Permit issued
  5. Construction Dec 2025Permit issued

    Rooftop pv solar system; 25 panels installed flush to roof mounted 0.5' above ypo membrane surface.

  6. Construction Mar 2025Permit issued

    Construction of a 2 story + cellar rear yard addition on a detached single-family home. refer to b2410378 for previously approved foundation plan.the scope of work includes modifications to the existing roof profile to improve the head height in an existing habitable third floor space, the addition of (1) new full bath & (1) kitchenette & relocation of existing plumbing fixtures, installation of new hvac equipment & modifications to existing ductwork, and layout changes with requisite power and lighting changes.

  7. Construction Dec 2024Permit issued

    Construction of new foundation walls and a slab on grade in preparation for a rear yard addition.

  8. Supplemental Jun 2022Permit issued

DC Department of Buildings

Safety and environment

FEMA natural hazard risk

Relatively Low

Highest for this area: heat wave. These drive insurance cost here.

FEMA National Risk Index, census tract

Leaking fuel tanks

12 within 1,650 ft

Nearest: Unknown, 4249 Wisconsin Ave Nw (1,600 ft), open. 1 still open. Ask whether groundwater or soil vapor testing was done.

EPA UST Finder, leaking underground storage tank releases

Brownfield site

1,750 ft

4025 Chesapeake Street Property. Former industrial land in EPA's cleanup and reuse program.

EPA ACRES Brownfields

Historic listing nearby

400 ft

Chappell, N. Webster, House and 1 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

300 ft

138 kV line run by POTOMAC ELECTRIC POWER CO.

HIFLD transmission lines

Radon potential

High

Average indoor levels here can exceed 4 pCi/L, EPA's action level. A $15 test kit settles it before you buy.

EPA and USGS Geologic Radon Potential Map

Wildfire risk

Very Low

Wildfire risk is low enough that standard home insurance usually covers it.

FEMA National Risk Index

Nearest public schools

450 ft

Janney ES (450 ft), Jackson-Reed HS (1,750 ft), Deal MS (3,000 ft). Confirm the assigned school with the district.

U.S. Department of Education, NCES

Major airport

6.9 mi

Reagan National (DCA). Aircraft may be audible under approach paths.

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

Sunlight

How the sun hits 4410 42nd Street Northwest, Washington

Sunlight at this address
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Building typeDetached house

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Viewing recommendations

What's worth checking in person before deciding.

  • 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.
  • Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
  • Check the roof, gutters, and downspouts for signs of leaks or recent repairs, especially if it has rained recently.
  • Ask what heating system is in place (own boiler, wood, gas) and request the last winter month's bills.
  • Knock on a neighboring gate and ask about noise, pets, flooding, or other issues common in the area.
  • Ask to see the construction documents (permit, sign-off) and check for visible cracks on the facade or in the attic/basement.
  • Check the sewer connection (public network or septic tank) and the water source (public network or well), including pressure and water quality.

Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.