340 Decatur Street Northwest, Washington
technical data · neighborhood and transit
Quick answers
- Does 340 Decatur Street Northwest have open permits or code violations?
- DC Department of Buildings lists 22 permits, 19 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 340 Decatur 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
19 permits not closed out. Unfinished permits pass to the next owner.
- Post card Jul 2026Permit issued
- Post card Jul 2026Permit issued
- Construction Nov 2025Permit issued
Install 1 roll up door at rear of property.all work on private property.
- Construction Jan 2025Permit issued
Solar panel install on roof.
- Supplemental Jan 2025Permit issued
Electrical trade permit
- Supplemental Nov 2024Permit issued
Electrical trade permit
- Construction Nov 2024Expired
Solar panel install on roof.
- Construction Sep 2024Permit issued
We are installing a roof-mounted solar system with following details: 11.48 kwdc 28 x hyundai his-s410yh(bk) modules 15 x duracell d700-m2 (208v) microinverter
- Post card May 2024Permit issued
- Construction Apr 2024Permit issued
Solar panel install on roof.
- Supplemental Apr 2024Permit issued
Electrical trade permit
- Supplemental Sep 2023Permit issued
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
6 within 1,650 ft
Nearest: Anacostia Realty Llc, 5515 S Dakota Av Ne 5501 S Dakota Av Ne (750 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Toxic release facility
2,900 ft
Fort Totten Ready Mix Concrete. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
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
250 ft
Barnard ES (250 ft), E.L. Haynes PCS - HS (1,850 ft), E.L. Haynes PCS - ES (1,850 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
6.7 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 Decatur 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.
- Ask to see the construction documents (permit, sign-off) and check for visible cracks on the facade or in the attic/basement.
- Ask what heating system is in place (own boiler, wood, gas) and request the last winter month's bills.
- 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.
- Knock on a neighboring gate and ask about noise, pets, flooding, or other issues common in the area.
- 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.