1298 48th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 1298 48th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 28 permits, 13 not closed, and 19 violations, 2 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 1298 48th Avenue at risk for?
- FEMA's National Risk Index rates the area relatively moderate overall, with elevated earthquake risk.
Permits and code violations
13 permits not closed out. Unfinished permits pass to the next owner. 2 open violations.
- Otc alterations permit Mar 2026Complete
For documentation purpose the legal use of this bldg is two residental dwelling units. determination is based on the review of city records and site visit. no work to be performed.
- Otc alterations permit Feb 2026Complete
Kitchen remodel, like for like. replace (e)cabinets, appliances and countertop.
- Otc alterations permit Nov 2025Cancelled
4 retrofit replacement windows. not visible from street.
- Otc alterations permit May 2021Issued
Like for like, one kitchen & one bathroom , new drywall throughout, new eletrical upgrae main and sub panel, new floors and paint, replace 14 windows (retrofit) facing street.
- Otc alterations permit Apr 2018Issued
To comply with complaint 201829032 - legalize partition @ 2nd and 3rd floors built without a permit. legalize 2nd floor bathroom
- Otc alterations permit Apr 2018Issued
To comply with complaint 201829032 - legalize partition @ 2nd and 3rd floors built without a permit. legalize 2nd floor bathroom
- Additions alterations or repairs Mar 2018Cancelled
Comply with nov 201829521 to legalize existing illegal unit per ord 43-14 section 102a3.1
- Additions alterations or repairs Mar 2018Cancelled
Comply with nov 201829521 to legalize existing illegal unit per ord 43-14 section 102a3.1
- Otc alterations permit Nov 2017Complete
Remove/replace (e) staircase in-kind at rear of building.
- Otc alterations permit May 2015Complete
Reroofing
- Otc alterations permit Mar 2010Expired
Reroofing
- Otc alterations permit Jul 2008Complete
Interior alterations to 1st floor spaces: 1 car garage, utility room, hallways, bathroom, study & recreation room. add 2 windows at rear & 1 new window at south side.
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
Leaking fuel tanks
1 within 1,650 ft
Nearest: Tosco/Unocal Station #0433, 1200 La Playa St. (600 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
Wildfire risk
Very Low
Wildfire risk is low enough that standard home insurance usually covers it.
FEMA National Risk Index
Nearest public schools
2,300 ft
Key (Francis Scott) Elementary (2,300 ft), Noriega Children Center (3,400 ft), Sunset Elementary (4,950 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.
- 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.
- 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.
- Ask what heating system is in place (own boiler, wood, gas) and request the last winter month's bills.
- Knock on a neighboring gate and ask about noise, pets, flooding, or other issues common in the area.
- Ask to see the construction documents (permit, sign-off) and check for visible cracks on the facade or in the attic/basement.
- Schedule a viewing in the evening too, on a weekday, to see street traffic, streetlights, and how quiet the neighborhood is after 8 PM.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.