3420 Legation Street Northwest, Washington
technical data · neighborhood and transit
Quick answers
- Does 3420 Legation Street Northwest have open permits or code violations?
- DC Department of Buildings lists 14 permits, 11 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 3420 Legation Street Northwest at risk for?
- FEMA's National Risk Index rates the area very low overall.
Permits and code violations
11 permits not closed out. Unfinished permits pass to the next owner.
- Construction Dec 2025Permit issued
Remove and replace 11 windows no structural changes. no widening of existing openings.
- Construction Sep 2025Permit issued
Test
- Supplemental Aug 2025Permit issued
- Construction Aug 2025Permit issued
Installation of a new grid interactive 5.72kw solar photovoltaic system
- Construction Oct 2024Completed
Remove and install 1 patio door and 4 windows-like sizes. no structural changes.
- Post card Jul 2024Completed
- Supplemental Jul 2024Completed
- Construction Oct 2023Expired
Remove and replace 3 windowsrenewal by andersen no structural changes, no widening of existing openings
- Supplemental Jul 2023Permit issued
- Supplemental Jul 2023Permit issued
- Supplemental Jul 2023Permit issued
- Supplemental Jul 2023Expired
Plumbing trade permit
DC Department of Buildings
Safety and environment
FEMA natural hazard risk
Very Low
No single natural hazard ranks high for this area.
FEMA National Risk Index, census tract
Leaking fuel tanks
8 within 1,650 ft
Nearest: Connecticut Ave Ltd Partnership, 5225 Connecticut Av Nw (1,550 ft), open. 1 still open. Ask whether groundwater or soil vapor testing was done.
EPA UST Finder, leaking underground storage tank releases
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
1,700 ft
Lafayette ES (1,700 ft), Murch ES (3,400 ft), Deal MS (3,800 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
7.7 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
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More on Legation Street Northwest
All addressesViewing 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.
- 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.
- Check the condition of the fence, yard, and sidewalk out front: who is responsible for upkeep, and whether there are any boundary disputes with neighbors.
- Knock on a neighboring gate and ask about noise, pets, flooding, or other issues common in the area.
- Schedule a viewing in the evening too, on a weekday, to see street traffic, streetlights, and how quiet the neighborhood is after 8 PM.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.