1239 45th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 1239 45th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 31 permits, 10 not closed, and 7 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 1239 45th Avenue at risk for?
- FEMA's National Risk Index rates the area relatively moderate 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 Aug 2026Filed
Revision to #202606189000 & 202606153217: delete 1 bedroom at g/f unit 1. reduce hallway tp 3'9" & add 1 tube to (e) bathroom at 2/f unit 2.
- Otc alterations permit Jun 2026Issued
Revision to # 202506189000: construct 1 new bathroom at g/f (unit 1). remove/replace (e) door to sliding door at 2/f (unit 2). repair (e) front patio, staircase, & deck in-kind less than 50%. replace (e) siding w/ new wood siding. bathroom approximately 40sf. siding approximately 2,400sf.
- Otc alterations permit Apr 2026Withdrawn
Repair rear deck & staircase in-kind due to dry-rot.change bldg finish from shingle siding to wood siding on facade. interior remodel: relocate (e) kitchen, bathr & 2 beds at 2/f (unit 1). relocate (e) kitchen, bdrm,closet & mech equip & reconfig (e) bath at 1/f (unit 2). add (n)laundry on both fl
- Otc alterations permit Jun 2025Issued
Remodel 2 kitchens and 2 full bathrooms. remove all lath paster and install type x drywall. replace counter tops & cabinets, laminated floors, vanities, toliets, tubs.
- Otc alterations permit Feb 2022Complete
Replacing washer & dryer in garage room (existing) - upgrade in kind. (front bldg only)
- Otc alterations permit Feb 2022Complete
Replacing washer & dryer in garage room (existing) - upgrade in kind. (front bldg only)
- Additions alterations or repairs Jun 2021Filed
Replacement of existing 1-story garage with 4-story, 3 bedroom adu at front of lot using local adu program. two existing units at rear to remain.
- Otc alterations permit Dec 2020Complete
Repair to garage weather proofing on siding. visible from street.
- Otc alterations permit Jan 2017Complete
Revision to 201504204011 change (e) hall to storage space
- Otc alterations permit Nov 2016Complete
Compliance with nov #201536381. legalize work performed on 2nd level - kitchen and bathroom remodel. other compliance o ground floor under pa #2015-04-20-4011. no wall modification and no structural work.
- Otc alterations permit Mar 2016Issued
Per pa #9804860, cfc dated 8-09-1999. convered a 2 residential unit bldg into one single family house. deleted one address 1231 45th ave. the single family house should be: 1233 45th ave.
- Otc alterations permit Apr 2015Complete
To comply with nov # 201536381: at garage level, 1st flr - legalize bathroom, bedroom, storage, laundry and hall. new outlets and lighting fixtures
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. (1,150 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
2,150 ft
Key (Francis Scott) Elementary (2,150 ft), Noriega Children Center (3,550 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 45th 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.
- Ask what heating system is in place (own boiler, wood, gas) and request the last winter month's bills.
- 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.
- Check exactly where you'd park: a spot in the yard or garage, or street parking, and how crowded the street gets in the evening.
- Knock on a neighboring gate and ask about noise, pets, flooding, or other issues common in the area.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.