1230 48th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 1230 48th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 37 permits, 16 not closed, and 33 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 1230 48th Avenue at risk for?
- FEMA's National Risk Index rates the area relatively moderate overall, with elevated earthquake risk.
Permits and code violations
16 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Otc alterations permit Dec 2025Complete
Replace kitchen cabinets, replace kitchen floor tiles, replace bathroom floor tiles and wall tiles only, like for like.
- Otc alterations permit Oct 2023Complete
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
- Otc alterations permit Feb 2023Complete
Fire alarm system upgrade per sf fire code. install (12) horn/strobe. to verify existing sound levels in sleeping areas, complying with sffc section 1103.7.6.1
- Otc alterations permit Apr 2021Complete
Replace in kind some joists with dry- rot in the landings of the building central light (3x7)
- Otc alterations permit Dec 2019Complete
Rev to pa# 201811014711; changes to steel frame at grid line a
- Otc alterations permit Dec 2018Complete
Replace entirely damaged stairs in bldg lightwell.
- Otc alterations permit Nov 2018Complete
Comply w/ san francisco wood-frame seismic retrofit program ( soft story ), sfbc chapter 4d, per 2016 cebc appendix a-4
- Otc alterations permit Sep 2018Withdrawn
Comply with san francisco wood-frame seismic retrofit program(soft story), sfbc chapter 4d, per 2016 cebc appendix
- Otc alterations permit Oct 2013Expired
Reroofing
- Otc alterations permit Aug 2013Complete
Kitchen remodel - replace cabinets, counter, upgrade electrical lighting, modify plumbing. install , sink, hood stove. bathroom remodel, replace bath tub, sink, shower stal, all faucets, upgrade electrical. all work to be on upstairs
- Otc alterations permit Jul 2013Expired
Replace windows on 2nd & 3rd level facing street. vinyl windows. paint exterior . max u-factor 0.40
- Otc alterations permit Jun 2013Complete
Reroofing
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. (400 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
2,550 ft
Key (Francis Scott) Elementary (2,550 ft), Noriega Children Center (3,700 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.
- 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.
- 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 condition of the fence, yard, and sidewalk out front: who is responsible for upkeep, and whether there are any boundary disputes with neighbors.
- Ask to see the construction documents (permit, sign-off) and check for visible cracks on the facade or in the attic/basement.
- Check the sewer connection (public network or septic tank) and the water source (public network or well), including pressure and water quality.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.