400 North Capitol Street Northwest, Washington
technical data · neighborhood and transit
Quick answers
- Does 400 North Capitol Street Northwest have open permits or code violations?
- DC Department of Buildings lists 60 permits, 60 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 North Capitol Street 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
60 permits not closed out. Unfinished permits pass to the next owner.
- Supplemental Oct 2026Permit issued
- Supplemental Oct 2026Permit issued
- Supplemental Oct 2026Permit issued
- Supplemental Sep 2026Permit issued
- Supplemental Sep 2026Permit issued
- Supplemental Sep 2026Permit issued
- Supplemental Sep 2026Permit issued
- Supplemental Sep 2026Permit issued
- Supplemental Sep 2026Permit issued
- Construction Aug 2026Permit issued
In the commission of fine arts jurisdiction area interior demolition to 3rd floor office space. no structural. rework electrical and life safety to leave space as a warm shell. 7370 square feet. no occupancy under this permit. fast track review request.
- Construction Aug 2026Permit issued
Cfa- interior renovation to existing 8th floor office space. partitions, furniture, finishes, mep and life safety. no structural. 1654 square feet. 39 occupants. university of michigan government affairs. suite #837. fast track review request.
- Construction Aug 2026Permit issued
Cfa- interior renovation to existing 7th floor office space. partitions, furniture, finishes, mep and life safety. no structural. 2510 square feet. 49 occupants. rumble #705. fast track review request.
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
13 within 1,650 ft
Nearest: Dc Fire Department, 439 New Jersey Av Nw (350 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
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
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
2,300 ft
Capitol Hill Montessori School at Logan (2,300 ft), Stuart-Hobson MS (Capitol Hill Cluster) (2,800 ft), Peabody ES (Capitol Hill Cluster) (3,000 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 North Capitol Street 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.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
- Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
- 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.
- Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
The year built, height regime, structure, and elevator for this address are being indexed right now, city by city. Save the page and check back: it fills in over time. If you live here, you can fill it in yourself in a minute by leaving a review.