663 45th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 663 45th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 48 permits, 23 not closed, and 1 violation.
- 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 663 45th Avenue at risk for?
- FEMA's National Risk Index rates the area relatively moderate overall, with elevated earthquake risk.
Permits and code violations
23 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Otc alterations permit Sep 2026Issued
Title 24 compliance and line penetrations related to hvac and plumbing upgrade. install 2 narien gas flared combi boilers, 2 heat por units, 2 horiz air handlers, assoc gas piping, hydronic loops,line sets condensate drains, elec disconnects, boiler receptacles, serving 667-669 ave. all fire
- Otc alterations permit Sep 2026Issued
Title 24 compliance and line penetrations related to hvac and plumbing upgrade. install 2 narien gas flared combi boilers, 2 heat por units, 2 horiz air handlers, assoc gas piping, hydronic loops,line sets condensate drains, elec disconnects, boiler receptacles, serving 667-669 ave. all fire
- Otc alterations permit Apr 2026Complete
Unit 667- remove and replace drywall and insulation,install new flooring, paint, replace doors in kind and repair leak in light well.
- Otc alterations permit Dec 2025Complete
Replace 10 windows w/ vinyl. 4 are street visible match (e) configurations. all are size for size.
- Otc alterations permit Dec 2025Complete
Replace 10 windows w/ vinyl. 4 are street visible match (e) configurations. all are size for size.
- Otc alterations permit Jun 2018Complete
Re-roofing
- Otc alterations permit Sep 2017Complete
Repair dry-rot at the front balcony. no change in appeared. (less than 50%)
- Otc alterations permit Sep 2017Complete
Remodel (e) kitchen & (1) bathroom, in-kind; no wall removal, work at middle level; no change in walls/openings.
- Otc alterations permit Oct 2015Issued
Reroofing
- Otc alterations permit Sep 2015Complete
Replace (e) egress stair.
- Otc alterations permit Sep 2015Complete
Replace (e) egress stair.
- Otc alterations permit Aug 2015Issued
Reroof
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
6.2 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
1 within 1,650 ft
Nearest: Commercial, 101 Point Lobos Ave (1,450 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
Nearest public schools
2,700 ft
Lafayette Elementary (2,700 ft), Washington (George) High (4,400 ft), Presidio Middle (5,200 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.
- 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 specifically where you'd park: is there paid city parking, who currently holds it, what the permit costs, and how long the waitlist is.
- 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.
- 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.
The year built, height regime, structure, and elevator for this address are being indexed right now, city by city. Save the page and check back: it fills in over time. If you live here, you can fill it in yourself in a minute by leaving a review.