21 Alta Mar Way, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 21 Alta Mar Way have open permits or code violations?
- San Francisco Department of Building Inspection lists 60 permits, 27 not closed, and 21 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 21 Alta Mar Way at risk for?
- FEMA's National Risk Index rates the area relatively moderate overall, with elevated earthquake risk.
Permits and code violations
27 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Otc alterations permit Jun 2025Complete
Dry rot repair per wood report (west valley structural structural)report #12672. date 5/3/25. item #1a/8d no structural changes. like and kind. not visible from street. repair fungus damage, dryrot to front cripple wall caused by faulty grade. repair fungus damage/dryrot sheating side of garage.
- Otc alterations permit May 2025Complete
Replace windows of the outer wall of the backyard. replace siding of the outer wall of the backyard with hardieplank siding cedarmill
- Otc alterations permit Jan 2025Complete
Kitchen upgrade, like for like: new tile, appliances, can light installation and shelving removal.
- Otc alterations permit Nov 2022Complete
Replacing 10 windows, street visible, same size and location. proposed wood composite. ufactor < 30
- Otc alterations permit Nov 2022Complete
Replacing 10 windows, street visible, same size and location. proposed wood composite. ufactor < 30
- Otc alterations permit Oct 2022Complete
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
- Otc alterations permit Apr 2022Withdrawn
Replace (10) windows. same size & location. street visible. u-factor 0.30 or better. (e) wood replaced with (n) reclaimed wood composite.
- Otc alterations permit Mar 2022Complete
Reroofing
- Otc alterations permit Jan 2019Complete
Reroofing
- Otc alterations permit Oct 2017Issued
Street space
- Otc alterations permit Sep 2017Complete
Reroofing
- Otc alterations permit Apr 2017Issued
New windows & siding (2 windows) at the rear. not visible from street.
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
2 within 1,650 ft
Nearest: Commercial, 101 Point Lobos Ave (1,100 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
3,400 ft
Lafayette Elementary (3,400 ft), Washington (George) High (5,000 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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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 Alta Mar Way
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.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
- Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
- 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.
- Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
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