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San Francisco

810 47th Avenue, San Francisco

Apartment building

technical data · neighborhood and transit

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Quick answers

Does 810 47th Avenue have open permits or code violations?
San Francisco Department of Building Inspection lists 44 permits, 9 not closed, and 4 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 810 47th Avenue at risk for?
FEMA's National Risk Index rates the area relatively moderate overall, with elevated earthquake risk.

Permits and code violations

9 permits not closed out. Unfinished permits pass to the next owner. No open violations.

  1. Additions alterations or repairs Nov 2025Complete

    To comply with nov# 202295346. change of use from residential r-3 & grocery store retail m to residential r-3 only.

  2. Otc alterations permit Sep 2025Complete

    Unit 101: remove and replace 5 windows like for like. aluminum or vinyl, dual pane. windows are rear, not street visible. u < 0.30

  3. Otc alterations permit Mar 2024Complete

    Re-roofing.

  4. Otc alterations permit Aug 2023Complete

    To compy with complaint # 202311980, remove toilet & shower in garage, remove portion of non load bearing wall in kitchen. verify that existing framing at 2/f can support point load front post and header aove.

  5. Otc alterations permit Oct 2021Cancelled

    Abandon grocery store use extg grocery store and owner's residential unit. proposed single family dwelling. no removal of a residential unit.

  6. Otc alterations permit Jan 2018Complete

    Remove and replace (e) furnace. relocate (e) gas line to accomadate new furnace, install new thermostat and new elec ckt. replace duct work as needed.

  7. Otc alterations permit Mar 2017Complete

    Replace sliding patio door at unit 202, not visible from street. same size and location

  8. Otc alterations permit Jul 2016Complete

    Replace existing aluminum windows with new aluminum framed double paned windows. replace 46 windows. all work on 1984 building. applies to whole building, not just unit 101.

  9. Otc alterations permit Jul 2016Complete

    Replace existing aluminum windows with new aluminum framed double paned windows. replace 46 windows. all work on 1984 building. applies to whole building, not just unit 101.

  10. Otc alterations permit Jul 2016Complete

    Replace existing aluminum windows with new aluminum framed double paned windows. replace 46 windows. all work on 1984 building. applies to whole building, not just unit 101.

  11. Otc alterations permit Jul 2016Complete

    Replace existing aluminum windows with new aluminum framed double paned windows. replace 46 windows. all work on 1984 building. applies to whole building, not just unit 101.

  12. Otc alterations permit Jul 2016Complete

    Replace existing aluminum windows with new aluminum framed double paned windows. replace 46 windows. all work on 1984 building. applies to whole building, not just unit 101.

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

6.0 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

3,450 ft

Lafayette Elementary (3,450 ft), Washington (George) High (5,050 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

Sunlight

How the sun hits 810 47th Avenue, San Francisco

Sunlight at this address
How it works
Building typeApartment building

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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
Read the San Francisco city report →

More on 47th Avenue

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Viewing 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.
  • Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
  • Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
  • 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.
  • 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.

Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.