400 New Jersey Avenue Northwest, Washington
technical data · neighborhood and transit
Quick answers
- Does 400 New Jersey Avenue Northwest have open permits or code violations?
- DC Department of Buildings lists 46 permits, 26 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 400 New Jersey Avenue Northwest at risk for?
- FEMA's National Risk Index rates the area relatively high overall, with elevated hurricane and inland flooding risk.
Permits and code violations
26 permits not closed out. Unfinished permits pass to the next owner.
- Construction Jul 2026Permit issued
In the commission of fine arts jurisdiction area partial depth concrete repairs and slab on grade concrete apron repairs
- Construction Oct 2025Expired
After hours work permit in conjunction with b2501060, interior hotel renovations. 7pm to 7am. monday through saturday. all day sundays. includes november 11, 2025, veterans day, per anc approval. contact: candace wiggins 240-374-6490.
- Supplemental Sep 2025Completed
- Construction Sep 2025Expired
After hours work permit in conjunction with b2501060. interior hotel renovations. 7pm to 7am. monday through saturday. all day sundays. includes october 13, 2025, indigenous peoples' day per anc approval. contact: candace wiggins 240-374-6490.
- Construction Aug 2025Expired
After hours work permit in conjunction with b2501060, interior hotel renovations. 7pm to 7am. monday through saturday. all day sundays. includes september 1, 2025, labor day, per anc approval. contact: candace wiggins 240-374-6490.
- Construction Jul 2025Completed
Commission of fine arts jurisdiction area upgrading exterior signage for hyatt regency
- Supplemental Jul 2025Completed
- Construction Jul 2025Expired
After hours work permit in conjunction with b2501060, interior hotel renovations. 7pm to 7am. monday through saturday. all day sundays, per anc approval. contact: candance wiggins 240-374-6490.
- Supplemental Jun 2025Completed
- Construction Jun 2025Permit issued
The replacement of the existing hotel entry vestibule to include new automatic revolving door system. the replacement of the existing automatic sliding door system at the exterior elevator lobby. the replacement of recessed downlights. the replacement of four (4) pendant light fixtures with linear light fixtures. the replacement of heaters.
- Construction Jun 2025Expired
After hours work permit in conjunction with b2501060, interior hotel renovations. 7pm to 7am. monday through saturday. all day sundays. includes june 19, 2025, juneteenth national independence day and july 4, 2025, independence day, per anc approval. contact: candace wiggins 240-374-6490.
- Construction May 2025Expired
After hours work permit in conjunction with b2501060, interior hotel renovations. 7pm to 7am. monday through saturday. all day sundays, per anc approval. contact: candace wiggins 240-374-6490.
DC Department of Buildings
Safety and environment
FEMA natural hazard risk
Relatively High
Highest for this area: hurricane, inland flooding, heat wave. These drive insurance cost here.
FEMA National Risk Index, census tract
Superfund site
1.9 mi
Washington Navy Yard (NPL Site). Check groundwater and vapor reports on the EPA site page.
EPA National Priorities List
Leaking fuel tanks
14 within 1,650 ft
Nearest: Dc Fire Department, 439 New Jersey Av Nw (250 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Toxic release facility
2,550 ft
U S Dhs Immigration Customs Enforcement Ice Nfttu and 2 more within a mile. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
High-voltage line
1,250 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
Wildfire risk
Very Low
Wildfire risk is low enough that standard home insurance usually covers it.
FEMA National Risk Index
Nearest public schools
2,750 ft
Capitol Hill Montessori School at Logan (2,750 ft), Walker-Jones Education Campus (3,300 ft), Stuart-Hobson MS (Capitol Hill Cluster) (3,300 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
3.3 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 New Jersey Avenue Northwest
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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.
- Ask specifically where you'd park: is there paid city parking, who currently holds it, what the permit costs, and how long the waitlist is.
- Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
- Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
- Ask for the latest maintenance bill from a winter month, not a summer one: that's where the real cost of living there shows up.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
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