477 45th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 477 45th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 13 permits, 6 not closed, and 3 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 477 45th Avenue at risk for?
- FEMA's National Risk Index rates the area relatively moderate overall, with elevated earthquake risk.
Permits and code violations
6 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Otc alterations permit Jun 2026Issued
Revision to #202512232501: remove 6 (e) windows, in-fill opening to match (e) exterior wall at 2/f. reconfigure bedroom layout & rearrange 2 bathroom at g/f. replace 16 (e) windows w/ fiberglass windows.
- Otc alterations permit Dec 2025Issued
Remodel (e) kitchen, 2 bathroom, & replace sheetrock w/ new at 2/f. construct 2 bedroom, famiyl room, 2 full bath, & install wetbar, laundry room at g/f. install 4 skylight & repair interior stair in-kind.
- Otc alterations permit Feb 2020Complete
Stucco siding repair on east and south side due to dry rot; no other exterior changes. repair in kind
- Otc alterations permit Dec 2019Complete
Repair cracked plaster wall with new sheetrock. install new receptacles. insulate exterior wall. this work is for (2) bedrooms only.
- Otc alterations permit Feb 2014Cancelled
Revision to 201402078111 - replace sidings with stucco
- Otc alterations permit Feb 2014Expired
Replace existing woodsiding at rear of building with fiber cement siding approx 30 ft wide by 16 ft high. install 1/2" cdx plywood backing and waterproofing behind siding. install min 10d @6 in o.c. edges @ 12" o.c. field
- Otc alterations permit Dec 2003Complete
Altered grd fl. can be used conform u.b.c. remove storage room at the rear back yard. change 2-bedro
- Otc alterations permit Dec 2003Complete
Storage rooms & (e) bathroom on g/f to comply with nov 200337861
- Otc alterations permit Mar 2001Expired
Sidewalk
- Otc alterations permit May 1999Expired
Kitchen remodel, move garage stairs
- Otc alterations permit May 1991Complete
Replace stucco w/ siding remove all stucco off building
- Otc alterations permit Apr 1991Complete
Replace front stucco and siding not stucco
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
Nearest active fault
6.4 mi
Serra fault zone, slip rate unspecified. Ask about seismic retrofit and earthquake insurance.
USGS Quaternary Fault Database
Quakes M4.5+ since 1970
1 within 30 mi
Every recorded earthquake of magnitude 4.5 or stronger within 30 miles.
USGS earthquake catalog
Leaking fuel tanks
2 within 1,650 ft
Nearest: Commercial, 101 Point Lobos Ave (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
2,850 ft
Lafayette Elementary (2,850 ft), Washington (George) High (4,500 ft), Presidio Middle (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.
- Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
- 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.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
- 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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