437 N Street Southwest, Washington
Estimated number, map position is approximatetechnical data · neighborhood and transit
Quick answers
- Does 437 N Street Southwest have open permits or code violations?
- DC Department of Buildings lists 16 permits, 5 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 437 N Street Southwest at risk for?
- FEMA's National Risk Index rates the area relatively moderate overall, with elevated inland flooding risk.
Permits and code violations
5 permits not closed out. Unfinished permits pass to the next owner.
- Construction Oct 2025Permit issued
Site of tiber island in the commission of fine arts jurisdiction area 1. concrete repairs: balcony top surface partial depth, full depth, edge, and overhead soffit repairs along with vertical repair patch locations on the parapet walls. 2. balcony waterproofing membrane: install new sealant at balcony perimeter, balcony concrete cracks, and railing posts/baseplates. prepare balcony concrete deck and apply new urethane waterproofing membrane. 3. balcony soffit acrylic coating: power wash and prepare balcony soffits. apply acrylic coating to soffits and balcony undersides. 4. elastomeric parapet wall coating: power wash and prepare balcony parapet walls. install new acrylic-based elastomeric coating. 5. elastomeric sealant: install new urethane sealant at areas described in #1 concrete repairs above, as well as fa?ade to balcony underside, fa?ade to balcony parapet walls, and vertical joints between juliet balcony concrete slab edges. 6. balcony scupper extensions: install stainless steel scupper extensions at balconies. 7. metal balcony railings: paint juliet railings, replacement of railing post sections with significant loss as identified by consultant (see detail 7/a003), and fill railing posts with pourable sealant up to newly drilled hole in railing post.
- Supplemental Apr 2025Completed
- Supplemental Apr 2025Completed
- Supplemental Apr 2025Completed
- Supplemental Apr 2025Completed
- Construction Apr 2025Completed
Remodel kitchen/dining area, move existing hvac and add new hvac, remodel half bath and 2 full baths, remove existing bath on 3rd floor and replace with a new laundry room, remodel utility room, removing existing laundry machines on the 1st floor, and build walls to separate hvac space and install new cabinets for storage in the utility room. replace and add new lighting.
- Supplemental Feb 2025Completed
- Construction Apr 2024Expired
Commission of fine arts jurisdiction area replacing sliding doors on all levels and replacing windows on lower level
- Supplemental Nov 2022Completed
- Supplemental Nov 2022Completed
- Supplemental Nov 2022Completed
- Construction Oct 2022Completed
Renovation of existing single family dwelling. removal of interior load bearing walls. the work comprises relocating the kitchen, rearranging the lower level and upgrading existing bathrooms. it also includes upgrading the hvac system and adding new light fixtures. all interior work only.
DC Department of Buildings
Safety and environment
FEMA natural hazard risk
Relatively Moderate
Highest for this area: inland flooding. These drive insurance cost here.
FEMA National Risk Index, census tract
Superfund site
1.6 mi
Washington Navy Yard (NPL Site). Check groundwater and vapor reports on the EPA site page.
EPA National Priorities List
Leaking fuel tanks
9 within 1,650 ft
Nearest: Unknown, 1000-1100 6th St Sw (900 ft), open. 1 still open. Ask whether groundwater or soil vapor testing was done.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
2,600 ft
1714 Second Street Property. Former industrial land in EPA's cleanup and reuse program.
EPA ACRES Brownfields
Toxic release facility
2,800 ft
Superior Concrete Materials Inc Dc and 4 more within a mile. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
Historic listing nearby
100 ft
Edward Simon Lewis House and 4 more listings close by. Exterior changes can need preservation review; listed buildings can qualify for rehabilitation tax credits.
National Park Service, National Register
High-voltage line
1,000 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
AppleTree Early Learning PCS - Waterfront Station (1,300 ft), Amidon-Bowen ES (1,800 ft), Jefferson MS Academy (2,400 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
1.9 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 N Street Southwest
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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 for the latest maintenance bill from a winter month, not a summer one: that's where the real cost of living there shows up.
- 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 specifically where you'd park: is there paid city parking, who currently holds it, what the permit costs, and how long the waitlist is.
- 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.
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