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San Francisco

641 48th Avenue, San Francisco

Row house

technical data · neighborhood and transit

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641 48th Avenue, San FranciscoOpen map

Quick answers

Does 641 48th Avenue have open permits or code violations?
San Francisco Department of Building Inspection lists 9 permits, 8 not closed, and 18 violations, 4 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 641 48th Avenue at risk for?
FEMA's National Risk Index rates the area relatively moderate overall, with elevated earthquake risk.

Permits and code violations

8 permits not closed out. Unfinished permits pass to the next owner. 4 open violations.

  1. Otc alterations permit Nov 2014Issued

    Re-roofing

  2. Otc alterations permit Sep 2014Issued

    Replace 11 or 12 windows from the back (including one from the side) not visisble from the street. 48th avenue 3 near the front on the side near the back. to comply with ces # 201279473 and 201392841.

  3. Otc alterations permit Sep 2014Issued

    Repair wooden fence on the north side next to park. repair wood fence and broken glass above garage door.

  4. Otc alterations permit Jan 2013Filed

    For documentation only & to comply with nov #201157029: this is to declare that no work was performed under pa #200407017878. we called in 2005 to inform dbi that we would not proceed with any work and requested for a refund of thae permit fee

  5. Otc alterations permit Dec 2008Issued

    Replace 8 wood windows with fiberglass windows not visable from the street on front of properties. no structural changes. u factor. .67 max windows to be install to back & left side.

  6. Additions alterations or repairs Jul 2004Expired

    Replace all plumbing fixtures kitchen cabients kitchen appliances bathrm cabinets & existing roof &

  7. Otc alterations permit Dec 2000Expired

    Replace kitchen cabinet appliances replace plumbing fixtures in all bathrms convert(e) storage to po

  8. Additions alterations or repairs Jul 1987Expired

    Converse closet to half bath, enclosure garage to bedrm

  9. Otc alterations permit Oct 1986Complete

    Install aluminum windows

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

3,650 ft

Lafayette Elementary (3,650 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 641 48th Avenue, San Francisco

Sunlight at this address
How it works
Building typeRow house

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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 48th Avenue

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Viewing 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.
  • Semi-detached or row house: the shared wall matters. Listen from the room adjoining the neighbor's side and ask whether any structural work has been done there.
  • Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
  • 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.
  • Knock on a neighboring gate and ask about noise, pets, flooding, or other issues common in the area.
  • Ask what heating system is in place (own boiler, wood, gas) and request the last winter month's bills.

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