4140 Delridge Way Southwest, Seattle
technical data · neighborhood and transit
Quick answers
- Does 4140 Delridge Way Southwest have open permits or code violations?
- Seattle Department of Construction and Inspections lists 3 permits, all closed, and 5 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 4140 Delridge Way 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.
- New Dec 2016Completed
Establish use and construct a new single family residence per plan.
- New Jan 2016Completed
Construct north middle duplex (this permit) per plan. [establish use and construct 2 townhouse buildings per plans. review and processing for 2 a/p's under 6391729].
- Addition/alteration Jan 2010Completed
Construct site retaining wall replacement to the south of existing 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
2 within 1,650 ft
Nearest: Nucor Steel Seattle, 2424 Sw Andover St (1,200 ft), open. 2 still open. Ask whether groundwater or soil vapor testing was done.
EPA UST Finder, leaking underground storage tank releases
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
1,250 ft
Southwest Youth and Family Services (1,250 ft), Pathfinder K-8 School (1,600 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 Delridge Way Southwest
All addressesViewing recommendations
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.
- Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
- 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.
- 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.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
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.