4131 25th Avenue Southwest, Seattle
technical data · neighborhood and transit
Quick answers
- Does 4131 25th Avenue Southwest have open permits or code violations?
- Seattle Department of Construction and Inspections lists 6 permits, all closed, and 4 violations.
- What is the 2026 conforming loan limit in King County?
- $1,063,750 for a single-unit home, per FHFA. Larger loans are jumbo loans.
- Is radon a problem here?
- EPA radon zone 3, low potential.
- What natural disasters is 4131 25th Avenue Southwest at risk for?
- FEMA's National Risk Index rates the area relatively high overall, with elevated earthquake risk.
Permits and code violations
Every permit on file is closed out. No open violations.
- Demolition Mar 2021Completed
Demo existing single family residence per plan.building permit issuance is required prior to finalizing this demolition permit; or all disturbed areas shall be fully stabilized and side sewers shall be capped.
- New Sep 2020Completed
Construct west single family residence per plan (establish use as and construct three single family residences / review & process for 3 cn's under 6740387-cn)
- New Sep 2020Completed
Construct east single family residence per plan (establish use as and construct three single family residences / review & process for 3 cn's under 6740387-cn)
- New Sep 2020Completed
Construct middle single family residence w/attached garage per plan (establish use as and construct three single family residences / review & process for 3 cn's under 6740387-cn)
- Addition/alteration Dec 2011Completed
Construct interior alterations to 2nd floor of existing single family residence subject to field inspection.
- New Feb 2009Completed
Establish use and construct new single family residence per plan.
Seattle Department of Construction and Inspections
Safety and environment
FEMA natural hazard risk
Relatively High
Highest for this area: earthquake. These drive insurance cost here.
FEMA National Risk Index, census tract
Nearest active fault
3,900 ft
Seattle fault zone, slip rate between 0.2 and 1.0 mm/yr. Ask about seismic retrofit and earthquake insurance.
USGS Quaternary Fault Database
Quakes M4.5+ since 1970
6 within 30 mi
Every recorded earthquake of magnitude 4.5 or stronger within 30 miles.
USGS earthquake catalog
Superfund site
1.1 mi
Harbor Island (Lead) (NPL Site). Check groundwater and vapor reports on the EPA site page.
EPA National Priorities List
Leaking fuel tanks
1 within 1,650 ft
Nearest: Nucor Steel Seattle, 2424 Sw Andover St (1,050 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
1,050 ft
Harsco Co Heckett Multiserv Plant 65 and 6 more within a mile. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
Radon potential
Low
Geology here keeps indoor radon low on average.
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
1,400 ft
Southwest Youth and Family Services (1,400 ft), Pathfinder K-8 School (1,950 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
8.3 mi
Seattle-Tacoma (SEA). Aircraft may be audible under approach paths.
FAA large-hub airports
Conforming loan limit 2026
$1,063,750
King County. 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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Who lives and works in Seattle
Cloud, aerospace and one of the highest engineering wage bases in the country
Seattle is a two-industry city that pays well. Cloud and aerospace set salaries, the downtown core is dense with towers, and the residential neighborhoods around it stay low rise and green.
- $116,068
- median household income
- 20.9%
- residents aged 25 to 34
- 46%
- households that own their home
What pays the bills
- Cloud and software
- Aerospace
- Retail headquarters
- Healthcare
- Maritime
Who anchors the economy
Amazon · Microsoft · Boeing · Starbucks · University of Washington
The market is shaped around
- Engineers and product staff
- Dual-income couples
- Owners in low-rise neighborhoods
More on 25th Avenue Southwest
All addressesViewing recommendations
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.
- Schedule a viewing in the evening too, on a weekday, to see street traffic, streetlights, and how quiet the neighborhood is after 8 PM.
- 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.
- Check the roof, gutters, and downspouts for signs of leaks or recent repairs, especially if it has rained recently.
- Ask what heating system is in place (own boiler, wood, gas) and request the last winter month's bills.
- 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.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.