170 Saint Charles Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 170 Saint Charles Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 27 permits, 15 not closed, and 3 violations.
- 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 170 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
15 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Otc alterations permit May 2025Complete
Replace (e) windows. 3 in the front and 2 in the back.
- Otc alterations permit Dec 2024Complete
To comply with nov #202430627 relocate & remodel (e) kitchen at 2nd fl & (n) bedroom at 2nd fl. remove walls at dining area, infill stairway interior, w/hallway bathroom.
- Otc alterations permit Nov 2024Suspend
Selective demolition of second floor: drywalls and floor for structural observation of existing framing for future work. any drywall or plaster removed adjacent to property line walls shall be replaced or patched in kind or with 5/8" type 'x' .
- Otc alterations permit Aug 2022Complete
Reroofing
- Otc alterations permit May 2021Complete
Replace shower pan and fixtures like for like. install new tile on floor and walls im same location
- Otc alterations permit Jul 2020Complete
Reroofing. built up slope less than 2/12 pitch. remove existing roofing. aplly new base sheet 3 layers 11lb. ply sheet with flood coat of asphalt and gravel.
- Additions alterations or repairs Mar 2019Complete
Legalize (e) unauthorized dwelling unit under ordinance #43-14
- Otc alterations permit Sep 2014Complete
Renew for final 200805283077. all work is complete
- 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 May 2008Issued
Renew 200603146632 for final inspection.
- Otc alterations permit Apr 2008Complete
Add new bedroom, family room, bathroom and storage room at the ground floor.
- Otc alterations permit May 2006Issued
Replace (1) patio door, size for size, alum. to wood, not visible from st.
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
1,250 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
2,050 ft
Ortega (Jose) Elementary (2,050 ft), Woodrow Wilson Elementary (2,900 ft), Sheridan Elementary (3,100 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.
- 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.
- Check the roof, gutters, and downspouts for signs of leaks or recent repairs, especially if it has rained recently.
- 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 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.