555 Massachusetts Avenue Northwest, Washington
technical data · neighborhood and transit
Quick answers
- Does 555 Massachusetts Avenue Northwest have open permits or code violations?
- DC Department of Buildings lists 46 permits, 23 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 555 Massachusetts Avenue Northwest at risk for?
- FEMA's National Risk Index rates the area relatively low overall, with elevated heat wave risk.
Permits and code violations
23 permits not closed out. Unfinished permits pass to the next owner.
- Home occupation Oct 2026Permit issued
Home office of licensed professional- independent clinical social worker
- Supplemental Oct 2026Permit issued
- Supplemental Aug 2026Permit issued
- Supplemental Jul 2026Permit issued
- Supplemental Jun 2026Permit issued
- Supplemental May 2026Completed
- Post card Apr 2026Permit issued
- Supplemental Apr 2026Completed
- Post card Jan 2026Completed
- Supplemental Feb 2025Permit issued
- Supplemental Feb 2025Completed
- Post card Dec 2024Completed
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
Superfund site
2.5 mi
Washington Navy Yard (NPL Site). Check groundwater and vapor reports on the EPA site page.
EPA National Priorities List
Leaking fuel tanks
34 within 1,650 ft
Nearest: The American Oil Co, 601 K St Nw (450 ft), open. 1 still open. Ask whether groundwater or soil vapor testing was done.
EPA UST Finder, leaking underground storage tank releases
Toxic release facility
650 ft
Us Doj Bureau Of Alcohol Tobacco Firearms Explosives Hq and 3 more within a mile. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
Historic listing nearby
300 ft
Surratt, Mary E., House. Exterior changes can need preservation review; listed buildings can qualify for rehabilitation tax credits.
National Park Service, National Register
High-voltage line
950 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
Nearest public schools
1,300 ft
Girls Global Academy PCS (1,300 ft), Walker-Jones Education Campus (1,750 ft), Center City PCS - Shaw (2,300 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
3.6 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 Massachusetts 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.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
- Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
- 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.
- Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.