2170 48th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 2170 48th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 12 permits, 3 not closed, and 2 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 2170 48th Avenue at risk for?
- FEMA's National Risk Index rates the area relatively high overall, with elevated earthquake and inland flooding risk.
Permits and code violations
3 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Otc alterations permit Feb 2026Issued
Remodel kitchen and bathroom. exterior decking replacement (in-kind).
- Otc alterations permit Mar 2022Complete
Removal of existing sub floor on level 1 and replace w/new concrete slab on grade and exterior sunken patio. floor plan reconfigured on level 1 and new code compliant stair, new bathroom and laundry room. new and replaced windows on the rear yard facade.
- Otc alterations permit Nov 2018Complete
Re-roofing
- Otc alterations permit Oct 2006Complete
Revision to appl#200610104565 (e) dining room to remain the same.
- Otc alterations permit Oct 2006Complete
Revise approved appl 200607176720. delete ground floor room construction. convert dining room to bedroom.
- Otc alterations permit Jul 2006Complete
Convert (e) bath on 2/f into 2 baths, at rear deck and stairs to rear yard. add rooms at g/f, replace (e) rotted stucco at front facade to 1"xredwood siding.
- Otc alterations permit Sep 2005Complete
Fix/remove property line window 2 as per notice of violation #2005559499
- Otc alterations permit Mar 2005Complete
Construct 1 story deck (8'-0" ht) at rear of (e) building. to add 1 bedroom. 1 full bath room.
- Otc alterations permit Apr 2003Complete
Reroofing
- Additions alterations or repairs Jun 1996Complete
Add new bedrm,plyrm,strg rm,and bthrm at grnd flr.
- Otc alterations permit Dec 1991Expired
Reroofing
- Otc alterations permit Oct 1983Expired
San Francisco Department of Building Inspection
Safety and environment
FEMA natural hazard risk
Relatively High
Highest for this area: earthquake, inland flooding. 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
Nearest public schools
2,100 ft
S.F. County Special Education (2,100 ft), Sunset Elementary (2,700 ft), Noriega Children Center (3,000 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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2170 48th Avenue is 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.
- Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
- Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
- Ask specifically where you'd park: is there paid city parking, who currently holds it, what the permit costs, and how long the waitlist is.
- Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
- Ask for the latest maintenance bill from a winter month, not a summer one: that's where the real cost of living there shows up.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
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