1978 47th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 1978 47th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 22 permits, 9 not closed, and 1 violation, 1 open.
- 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 1978 47th Avenue at risk for?
- FEMA's National Risk Index rates the area relatively high overall, with elevated earthquake risk.
Permits and code violations
9 permits not closed out. Unfinished permits pass to the next owner. 1 open violation.
- Otc alterations permit Feb 2023Complete
Remove & replace 1 window at rear, not visible from street. (e) aluminum, (n) wood comp. same size same location. <.30 max.
- Otc alterations permit Oct 2016Complete
Replace front windows and repair any dry rot found; patch and replace stucco.
- Otc alterations permit May 2011Complete
Revision to pa# 2007.11.20.8641. proposed patio enclosure of 256 sqft instead of one-story room addition with bathroom.
- Otc alterations permit Nov 2010Complete
Repair frame structural to siding in front.
- Otc alterations permit Oct 2010Complete
Repair front siding about 60 sf in kind. no structural work under this permit.
- Additions alterations or repairs Nov 2007Issued
Family room addition on 1st floor. legalize remodel garage bath & study room addition on 1st floor.
- Otc alterations permit Jun 2007Complete
Front of the building. remove stucco & damaged lumber approx 200 sq. ft. & replace with same. non-structural work.
- Otc alterations permit May 2005Expired
Renew app #9907668 for final insp
- Otc alterations permit May 2005Expired
Dryrot repair of rear siding expanded to replace lap siding in rear of bldng with t-iii plywood sidi
- Otc alterations permit Apr 2005Issued
Increase value of work from $5,000.oo to $15,000. (inspector instructed us to increase size of permi
- Otc alterations permit Apr 2005Issued
Reroofing
- Otc alterations permit Mar 2005Complete
Repair dryrot in several members.replc plywood,paper,stucco to return to orig condition at entr land
San Francisco Department of Building Inspection
Safety and environment
FEMA natural hazard risk
Relatively High
Highest for this area: earthquake. These drive insurance cost here.
FEMA National Risk Index, census tract
Nearest active fault
4.5 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: Tosco (Unocal) Station #3390, 3701 Noriega St. (1,400 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
1,650 ft
Noriega Children Center (1,650 ft), Sunset Elementary (1,900 ft), Giannini (A.P.) Middle (2,700 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
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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 47th 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.
- 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.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
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