4417 Illinois Avenue Northwest, Washington
technical data · neighborhood and transit
Quick answers
- Does 4417 Illinois Avenue Northwest have open permits or code violations?
- DC Department of Buildings lists 10 permits, 9 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 4417 Illinois Avenue Northwest at risk for?
- FEMA's National Risk Index rates the area very low overall, with elevated heat wave risk.
Permits and code violations
9 permits not closed out. Unfinished permits pass to the next owner.
- Supplemental Mar 2026Permit issued
- Construction Jan 2026Permit issued
To install 7.92kw dc on roof of the building
- Post card Jul 2025Permit issued
- Post card Jun 2025Permit issued
- Supplemental Oct 2024Permit issued
- Construction Oct 2024Permit issued
Residential grid roof mounted interactive solar installation system ac size @ stc: 8.424 kw system dc size @ stc: 10.660 kw (26) znshine solar zxm7-sh108-410/m solar modules (26) enphase iq8m-72-2-us micro-inverters (rgm certified)
- Post card Jun 2024Completed
- Post card Dec 2022Permit issued
- Construction Aug 2022Permit issued
Remove existing garage structure and keeping existing concrete slab.
- Post card May 2022Expired
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
1 within 1,650 ft
Nearest: Robert & Romaine A. Jenkins, 220 Allison St Nw (1,500 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
2,350 ft
4100 Kansas Ave And 1203 Taylor Street Property. Former industrial land in EPA's cleanup and reuse program.
EPA ACRES Brownfields
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
500 ft
Center City PCS - Petworth (500 ft), E.L. Haynes PCS - HS (700 ft), E.L. Haynes PCS - ES (700 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
6.4 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 Illinois Avenue Northwest
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What's worth checking in person before deciding.
- 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.
- Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
- 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.
- Check the roof, gutters, and downspouts for signs of leaks or recent repairs, especially if it has rained recently.
- Check the condition of the fence, yard, and sidewalk out front: who is responsible for upkeep, and whether there are any boundary disputes with neighbors.
- Ask to see the construction documents (permit, sign-off) and check for visible cracks on the facade or in the attic/basement.
- 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.