871 45th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 871 45th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 37 permits, 7 not closed, and 0 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 871 45th Avenue at risk for?
- FEMA's National Risk Index rates the area relatively moderate overall, with elevated earthquake risk.
Permits and code violations
7 permits not closed out. Unfinished permits pass to the next owner.
- Otc alterations permit May 2026Complete
To obtain final inspection for work approved under pa# 202410112866. all work is complete.
- Otc alterations permit Oct 2024Expired
Revision to 202002245246 to reflect updated title ser calculations
- Otc alterations permit Oct 2023Complete
Replace old garage door with new garage door and motor. same size and location.
- Otc alterations permit Aug 2023Complete
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
- Otc alterations permit Oct 2020Complete
Replace 1 retrofit non visible window w/fibrex. u factor less than 0.32, shgc 0.25
- Additions alterations or repairs Feb 2020Complete
Infill of lightwells near west & east property line.rear addition to 1st & 2nd fl.remodel of kitchens, relocation of bathroom on 1st floor.new master bathroom on 2nd floor. reconfig (n) rear stairs and addition of patio. update window schedules (a400), skylights (a400,a001) and reconfig windows 1/f
- Otc alterations permit Feb 2020Issued
Reroofing.
- Otc alterations permit Jul 2018Complete
Replace (5) existing are aluminum. two marvin wood aluminum clad at the front - three in the rear shall be vinyl - no size change u factor < .32
- Otc alterations permit Nov 2015Complete
(3) fibrex retrofit rep. windows - non-visable. u-factor < 0.32. no size change.
- Otc alterations permit Aug 2015Complete
(9) wood with aluminum clad replacement windows - in-kind - [5 are visible from street]/casements & fixed at front. no size change.
- Otc alterations permit Apr 2015Expired
To comply with his nov 2015 32201, item 2, dated 3/25/2015: rebuild (e) damaged rear deck and stairs for 1st and 2nd flrs in kind.
- Otc alterations permit Sep 2014Complete
Reroofing
San Francisco Department of Building Inspection
Safety and environment
FEMA natural hazard risk
Relatively Moderate
Highest for this area: earthquake. These drive insurance cost here.
FEMA National Risk Index, census tract
Nearest active fault
5.9 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
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
Wildfire risk
Very Low
Wildfire risk is low enough that standard home insurance usually covers it.
FEMA National Risk Index
Nearest public schools
3,250 ft
Lafayette Elementary (3,250 ft), Washington (George) High (4,750 ft), Key (Francis Scott) Elementary (5,250 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 45th 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 specifically where you'd park: is there paid city parking, who currently holds it, what the permit costs, and how long the waitlist is.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
- 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.
- Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
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.