1875 47th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 1875 47th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 26 permits, 13 not closed, and 6 violations, 1 open.
- 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 1875 47th Avenue at risk for?
- FEMA's National Risk Index rates the area relatively high overall, with elevated earthquake risk.
Permits and code violations
13 permits not closed out. Unfinished permits pass to the next owner. 1 open violation.
- Otc alterations permit Jun 2026Issued
Revision to 202202188303: 3rd fl reconfigure bathroom and closet.add skylight at office,convert door and window to sliding door. 2nd fl reconfigure bedroom closet at rear, front bay window depth reduced from 3' to 2'. 1st fl add elec top 2 burner and bdrm window convert to sliding door,relocat
- Otc alterations permit Jun 2025Complete
Replace(1) window (2) doors. (e) pw wood (n) pw aluminum clad wood non street visible. (e) wood door in-swing (n) provia steel entry door. (e) wood door out swing (n) ensemble-fibres/fiber glass. u factor<.30, no size changes, in kind in the same opening
- Otc alterations permit Mar 2024Complete
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
- Additions alterations or repairs Jan 2023Issued
Proposed conversion of 1st floor into adu through state law (government code 65852.2). (e) rooms were approved under 8701220. modify 2/f: removel of connecting stair, rmeodel ktichen, remodel bathroom, add new bathroom& door.separate permit will be filed for 3rd floor ledu under bpa #2023-0118-0297.
- Additions alterations or repairs Jan 2023Issued
Proposed conversion of 1st floor into adu through state law (government code 65852.2). (e) rooms were approved under 8701220. modify 2/f: removel of connecting stair, rmeodel ktichen, remodel bathroom, add new bathroom& door.separate permit will be filed for 3rd floor ledu under bpa #2023-0118-0297.
- Additions alterations or repairs Jan 2023Issued
Proposed conversion of 3rd floor into legal unit under ord 43-14. (e) rooms were approved under 8701220. modify layout. include new kitchen, remodel (e) bathroom and new entry door. modifty stairs. a separate permit will be filed for 1st floor adu under bpa #2023-0118-0307.
- Additions alterations or repairs Jan 2023Issued
Proposed conversion of 3rd floor into legal unit under ord 43-14. (e) rooms were approved under 8701220. modify layout. include new kitchen, remodel (e) bathroom and new entry door. modifty stairs. a separate permit will be filed for 1st floor adu under bpa #2023-0118-0307.
- Otc alterations permit Feb 2022Withdrawn
Convert (e) third floor into new unit. to be legalized to comply with nov 202016052.
- Additions alterations or repairs Feb 2022Issued
Horizontal addition at rear and one story vertical addition. 1/f add 1 bedroom + 1.5 bathroom, kitchen w/ 2 burner and great room). 2/f 1 bedroom, office, bathroom, & kitchen. 3/f 2 bedroom 2 bathroom.
- Otc alterations permit Oct 2019Complete
Proposed 1st fl remodel, add 1 bedroom, 1 full bath, living room
- Otc alterations permit Aug 2019Issued
Remodel bathroom: redo shower tiles, replace sink, vainty, new tiolet, new shower & retile. add lights.
- Otc alterations permit May 2018Complete
New cabinets, counters, lighting, update electrical, replace 100 amp panel in garage. no wall alteration, like for like. lighting per cec 150k.
San Francisco Department of Building Inspection
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
4.6 mi
Serra fault zone, slip rate unspecified. Ask about seismic retrofit and earthquake insurance.
USGS Quaternary Fault Database
Quakes M4.5+ since 1970
1 within 30 mi
Every recorded earthquake of magnitude 4.5 or stronger within 30 miles.
USGS earthquake catalog
Leaking fuel tanks
1 within 1,650 ft
Nearest: Tosco (Unocal) Station #3390, 3701 Noriega St. (1,000 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
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
1,150 ft
Noriega Children Center (1,150 ft), Sunset Elementary (2,050 ft), Key (Francis Scott) Elementary (2,700 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
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 47th Avenue
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.
- 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.
- 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.
- 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.
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