679 48th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 679 48th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 32 permits, 11 not closed, and 25 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 679 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. No open violations.
- Otc alterations permit Apr 2026Issued
Shoring plan for (n) retaining wall. ref pa# 202604179633 & 202604179647.
- Otc alterations permit Apr 2026Issued
Shoring plan for (n) retaining wall. ref pa# 202604179633 & 202604179647.
- Otc alterations permit Apr 2026Issued
Remove (e) retaining wall replace with (w) retaining wall grading max 15 yards. share plans 202604179633
- Otc alterations permit May 2024Complete
Remove and replace in-kind dmange 2x6 deck boards. less than 50%.
- Otc alterations permit May 2024Complete
Remove and replace in kind all damaged 2x6 deck boards
- Otc alterations permit Nov 2019Cancelled
Demolish & replace concrete & wood retaining wall.
- Additions alterations or repairs Sep 2017Complete
Soft story rertrofit per sfebc ch4d - 2016 cebc appx a-4.
- Additions alterations or repairs Sep 2017Complete
Soft story rertrofit per sfebc chapter 4d, 2016 cebc appendix a-4.
- Otc alterations permit Aug 2017Complete
Repair dry rotted framing to front window & door openings.
- Otc alterations permit Nov 2016Complete
Rear stair replacement in kind.
- Otc alterations permit Nov 2016Complete
Rear stair replacement in kind.
- Otc alterations permit Mar 2016Issued
Install (n) retaining wall, remove (e) retaining wall. 23yrd excavation, maximun 46 yards excavation
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
6.2 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
3,750 ft
Lafayette Elementary (3,750 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 48th 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.
- 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.
- Check the condition of the fence, yard, and sidewalk out front: who is responsible for upkeep, and whether there are any boundary disputes with neighbors.
- Schedule a viewing in the evening too, on a weekday, to see street traffic, streetlights, and how quiet the neighborhood is after 8 PM.
- Ask to see the construction documents (permit, sign-off) and check for visible cracks on the facade or in the attic/basement.
- Check the roof, gutters, and downspouts for signs of leaks or recent repairs, especially if it has rained recently.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.