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San Francisco

820 48th Avenue, San Francisco

Apartment building

technical data · neighborhood and transit

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Quick answers

Does 820 48th Avenue have open permits or code violations?
San Francisco Department of Building Inspection lists 26 permits, 11 not closed, and 41 violations, 14 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 820 48th Avenue at risk for?
FEMA's National Risk Index rates the area relatively moderate overall, with elevated earthquake risk.

Permits and code violations

11 permits not closed out. Unfinished permits pass to the next owner. 14 open violations.

  1. Otc alterations permit Sep 2025Complete

    Re-roofing: remove and replace roofing material / existing roofing material (in-kind)

  2. Otc alterations permit Sep 2022Complete

    Reroofing

  3. Otc alterations permit Sep 2022Complete

    Reroofing

  4. Otc alterations permit Mar 2019Cancelled

    Construct new 1 story addition over (e) 2 story building for new unit - under building code 2016 bpa 200709072126 ref bulilding permit

  5. Otc alterations permit Dec 2018Complete

    Comply with nov 201889612. to reconstruct from fire damage. remodel, in kind, apt #4 upgrade elec. replace seven windows (like for like) repair stucco, repair doors & install (n) carpet & paint. replace/maintain fire separations. per 602 and section 420.2 and 420.3//sffd vif cfc 1030

  6. Otc alterations permit Sep 2017Expired

    Soft story retrofit per sfebc chapter 4d engineering criteria per 2016 cebc appendix a4.

  7. Otc alterations permit Sep 2014Complete

    Re-roofing

  8. Otc alterations permit Aug 2012Issued

    Reroofing

  9. Additions alterations or repairs Sep 2007Issued

    Vertical addition: one story vertical addition to existing two stories building for the new additional unit. submitted as site permit appl.

  10. Otc alterations permit May 2007Issued

    Repair siding in lightwell area. repair in kind 15'x15' area

  11. Otc alterations permit Feb 2006Complete

    Add two bedrooms, two bathrooms, & storage room, add non-bearing walls per plan, to ground floor

  12. Otc alterations permit Jun 2004Complete

    Renew:200309296110-for finlal inspection only no work under this permit

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

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

3,800 ft

Lafayette Elementary (3,800 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 820 48th 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 →

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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.
  • 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.
  • Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
  • 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.