821 Huron Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 821 Huron Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 25 permits, 11 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 821 Huron Avenue at risk for?
- FEMA's National Risk Index rates the area relatively low overall.
Permits and code violations
11 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Violation Sep 2025Issued
Solar permit: installing 18 solar pv modules, 7 watts per module, total no. of rating 0.126 kw. mounted: roof, ballasted: n, including 1 energy storage unit, with 13.5 kwh each in capacity, ess units will not be closer than 3 feet | solar roof mount,new subpanel 125a.
- Otc alterations permit Nov 2023Issued
Remodel a bathroom in kind.
- Otc alterations permit Mar 2023Complete
To comply with nov # 202304974: remove horiontal addition at rer structure remove ground cover alter femce at laura st. fronage to 6 feet in height
- Otc alterations permit May 2021Issued
Replacing (4) windows in-kind. nonstreet facing/visible 9back of house). replace (e) vinyl and rpelace with wood composite. ufactor 0.30 or better.
- Otc alterations permit Jun 2019Complete
1st floor: legalize extg laundry and half bath. add family room.
- Otc alterations permit May 2015Complete
Replace 3 street-facing windows with aluminum-clad wood. replace 3 non-street-facing windows with fibrex.
- Otc alterations permit Oct 2013Complete
Reroofing
- Otc alterations permit Aug 2013Issued
Street space & sidewal repair
- Otc alterations permit Mar 2013Complete
Add (n) four bedrooms & two bath & laundry area at 1st floor. convert one bath into two baths at 2nd floor. convert (e) dining room into bedroom. replace (e) windows at front & side of bldg. replace water heater & furnace.
- Otc alterations permit Dec 2011Issued
Replace one window and 1 door, size for size not visible from st u value .29
- Otc alterations permit Nov 2010Complete
Re-roofing only.
- Additions alterations or repairs Jan 2007Cancelled
Proposed two story horizontal addition @ front of bldg.
San Francisco Department of Building Inspection
Safety and environment
FEMA natural hazard risk
Relatively Low
No single natural hazard ranks high for this area.
FEMA National Risk Index, census tract
Leaking fuel tanks
10 within 1,650 ft
Nearest: Shell Station #4003, 5897 Mission Street (800 ft), open. 1 still open. Ask whether groundwater or soil vapor testing was done.
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
1,100 ft
Longfellow Elementary (1,100 ft), George Washington Elementary (1,850 ft), Sheridan Elementary (2,850 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
7.6 mi
San Francisco International (SFO). Aircraft may be audible under approach paths.
FAA large-hub airports
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 Huron 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.
- 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.
- Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
- Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
- 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.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
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