140 Saint Charles Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 140 Saint Charles Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 18 permits, 6 not closed, and 1 violation.
- What is the 2026 conforming loan limit in San Francisco County?
- $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 140 Saint Charles Avenue at risk for?
- FEMA's National Risk Index rates the area relatively low overall, with elevated earthquake risk.
Permits and code violations
6 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Otc alterations permit Jun 2026Issued
1/f: new bedroom, new bathroom, media room, wetbar, mech room and laundry.
- Otc alterations permit Oct 2025Complete
Change existing window in front of house, change from fixed window into openable window, no size change, same location, same material, facing the street
- Otc alterations permit Sep 2022Complete
2/f: remodel (e) 1 kitchen and add 1 new bathroom.
- Otc alterations permit Feb 2020Complete
Remodel kitchen & bathroom
- Additions alterations or repairs Jul 2019Complete
To comply w/ #201866361 (1) (n) adu per ord #95-17. remodel basement to become liveable area. install bathroom, bedroom, & office w/ all electrical & plumbing neccessary. install window for bedroom escape.
- Otc alterations permit Jul 2018Complete
Reroofing
- Otc alterations permit Apr 2018Issued
Replace 1 entry door and 1 window not visible from the street no structural changes, u factor.32 fiberglass at same opening
- Otc alterations permit Mar 2018Issued
Street space & sidewalk repair
- Otc alterations permit Feb 2018Complete
Reroofing
- Otc alterations permit Dec 2016Complete
Reroofing
- Otc alterations permit Jun 2009Complete
Install 525 sq of vinyl siding to the back of the house only. not visible from the street. no structural changes.
- Otc alterations permit Feb 2009Issued
Street space & sidewalk repair.
San Francisco Department of Building Inspection
Safety and environment
FEMA natural hazard risk
Relatively Low
Highest for this area: earthquake. These drive insurance cost here.
FEMA National Risk Index, census tract
Leaking fuel tanks
2 within 1,650 ft
Nearest: San Francisco Golf Course, 1300 Junipero Serra Blvd (900 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
1,350 ft
Habitat For Humanity De Long Street Properties Habitat For Humanity Parcel 8 and 2 more within half a mile. 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
1,900 ft
Ortega (Jose) Elementary (1,900 ft), Woodrow Wilson Elementary (3,050 ft), Sheridan Elementary (3,050 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
8.2 mi
San Francisco International (SFO). Aircraft may be audible under approach paths.
FAA large-hub airports
Conforming loan limit 2026
$1,249,125
San Francisco 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 San Francisco
Venture capital, AI labs and the highest founder density in the country
San Francisco runs on company building. Engineering and product salaries set the price floor, offices cluster in SoMa and the Mission, and demand moves with funding cycles rather than with the school calendar.
- $141,446
- median household income
- 19.6%
- residents aged 25 to 34
- 38%
- households that own their home
What pays the bills
- Software and AI
- Venture capital
- Biotech
- Professional services
- Tourism
Who anchors the economy
OpenAI · Salesforce · Stripe · UCSF · Y Combinator
The market is shaped around
- Founders and engineers
- Early career tech workers
- People who move for a company
More on Saint Charles Avenue
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.
- Check the sewer connection (public network or septic tank) and the water source (public network or well), including pressure and water quality.
- 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.
- Ask what heating system is in place (own boiler, wood, gas) and request the last winter month's bills.
- Knock on a neighboring gate and ask about noise, pets, flooding, or other issues common in the area.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.