1441 48th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 1441 48th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 28 permits, 13 not closed, and 60 violations, 6 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 1441 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. 6 open violations.
- Otc alterations permit Jul 2025Issued
Rear parking garage (share w/1447 48th av) compliance to nov 202537535 for 1445 48th av: structural upgrade to e) carport at rear of lot. refer to p/a 2025-0725-1646 for accompanying p/a.
- Otc alterations permit Jul 2025Issued
Rear parking garage (share w/1445 48th av) compliance to nov 202538040 for 1447 48th av: structural upgrade to wood framing & seimic improvement. refer to p/a 2025-0725-1648 for accompanying p/a.
- Otc alterations permit Jan 2023Complete
Unit 2: in kind kitchen & in kind bathroom
- Additions alterations or repairs Sep 2021Withdrawn
Add roof deck. extend (e) ground fl bedroom, relocated toilet, add 1 closet, relocate 2 windows and 1 door.
- Otc alterations permit Jan 2018Complete
Repair and improve existing exterior walls which has been damaged by water intrusion (not visible from street). work to comply with nov 201718163, item no 5. no roofing nook will be completed under this permit
- Otc alterations permit Feb 2017Issued
Reroofing
- Otc alterations permit Dec 2016Issued
Street space
- Otc alterations permit Jun 2016Issued
Street space
- Otc alterations permit Feb 2016Issued
Street space
- Otc alterations permit Nov 2015Complete
Revise exterior wall footing details. ref pa 2013-0919-7251
- Otc alterations permit Oct 2015Issued
Per pa #201309197251s, adding 2nd unit at block 1805, lot 006 as; 1435 48th ave.
- Additions alterations or repairs Sep 2013Complete
Convert the (e) two story single family dwelling into two new dwelling units. add 3rd story with roof deck @ rear. addition behind the (e) area @ 1st & 2nd stories. add rood deck @2nd floor. reconfigaring the interior.
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. (1,600 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
1,800 ft
Key (Francis Scott) Elementary (1,800 ft), Noriega Children Center (2,450 ft), Sunset Elementary (4,050 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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1441 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.
- Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
- Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
- 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 for the latest maintenance bill from a winter month, not a summer one: that's where the real cost of living there shows up.
- 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.
- Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
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