1739 48th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 1739 48th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 19 permits, 10 not closed, and 1 violation.
- 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 1739 48th Avenue at risk for?
- FEMA's National Risk Index rates the area relatively high overall, with elevated earthquake risk.
Permits and code violations
10 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Otc alterations permit Oct 2023Complete
Dry rot repair on front of house approx 100 sq ft above living room window - visible from street. replace in kind.
- Additions alterations or repairs Jul 2022Issued
Horizontal addition; 263 sq ft ground floor addition & 114 sq ft 2nd floor addition at the rear. convert 410 sq ft of (e) storage/garage to habitable space. remodel existing residence per plans. add new bathroom on ground and 2nd floor. remodel (e) kitchen, dining and living room. reconfigure front
- Otc alterations permit Nov 2017Complete
Replacement of 3 vinyl windows and replace with aluminum clad. remove stucco around windows and repair as needed to allow window installation. visible to street.
- Otc alterations permit Dec 2014Issued
Re-roofing
- Otc alterations permit Jul 2014Complete
Remove stove & sink per complaint no. 201486653. added in ground floor.
- Otc alterations permit Aug 2012Issued
Rebuilt stair and repair deck in same size and location per plans
- Otc alterations permit Jul 2012Issued
Remove and replace rotted stringers in stairs. remove and replace rotted posts at rear deck less than 50% in kind.
- Otc alterations permit Jun 2012Issued
Repair & replace dry rot back deck & stairs, less than 50%
- Otc alterations permit Feb 2007Issued
Street space
- Otc alterations permit Feb 2007Issued
Sidewalk
- Otc alterations permit Jan 2003Issued
Kitchen remodeling:no structural work.replace cabinets,countertops,sink & faucet.
- Additions alterations or repairs Jan 1995Complete
Proposed alteration to existing ground floor-bdrm, bath, sto
San Francisco Department of Building Inspection
Safety and environment
FEMA natural hazard risk
Relatively High
Highest for this area: earthquake. These drive insurance cost here.
FEMA National Risk Index, census tract
Leaking fuel tanks
1 within 1,650 ft
Nearest: Tosco (Unocal) Station #3390, 3701 Noriega St. (1,250 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
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
Nearest public schools
1,150 ft
Noriega Children Center (1,150 ft), Key (Francis Scott) Elementary (2,200 ft), Sunset Elementary (2,650 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
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1739 48th Avenue sits in San Francisco.
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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.
- 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.
- 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.
- Ask what heating system is in place (own boiler, wood, gas) and request the last winter month's bills.
- Schedule a viewing in the evening too, on a weekday, to see street traffic, streetlights, and how quiet the neighborhood is after 8 PM.
- Check the sewer connection (public network or septic tank) and the water source (public network or well), including pressure and water quality.
- 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.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.