1775 47th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 1775 47th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 16 permits, 5 not closed, and 0 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 1775 47th Avenue at risk for?
- FEMA's National Risk Index rates the area relatively high overall, with elevated earthquake risk.
Permits and code violations
5 permits not closed out. Unfinished permits pass to the next owner.
- Otc alterations permit Aug 2026Filed
Interior remodel with remove interior walls, new deck and stair in the rear yard. infill interior stair.
- Otc alterations permit Jun 2026Issued
2/f: remodel kitchen and 2.5 bathrooms. 1/f: remodel bathroom in-kind. no structural work or wall modifications.
- Otc alterations permit Dec 2021Complete
Convert (e) storage on ground fl to habitable space with new kitche,dining,laundry powder room. at 2nd floor:convert (e) dining room & kitchen into a bedroom & bathroom. enclose (e)exterior with new roof with skylights.
- Otc alterations permit Jul 2017Issued
Street space
- Otc alterations permit Aug 2012Complete
1)restore to a single family dwelling from 3 units by removing 2 illegal kitchens. 2)convert the attic floor from storage to home office.
- Otc alterations permit Apr 2011Complete
Kitchen remodel @ 2nd floor, new cabinets, counters, replace flooring.
- Otc alterations permit Mar 2011Complete
1st fl: modify (e) fam room, exercise and play rm. add a full bath, storage and guest room. 2nd fl: add a full bath, powder rm,modify (e) bedrooms. attic fl: add a full bath and master bedroom
- Otc alterations permit Sep 2007Complete
Repair dry rot in front of house approx 200 sq. ft. replace stucco in kind.
- Otc alterations permit Aug 2007Issued
Reroofing
- Otc alterations permit Mar 2002Complete
Add one storage,one full bath, & legalize exis. play rm on ground fl
- Otc alterations permit Jan 2001Complete
Construct 1 bathrm, 1 bedrm, 1 storage rm. & 1 family rm at g/floor area
- Otc alterations permit Oct 1993Expired
Reroofing
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
4.7 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. (950 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
900 ft
Noriega Children Center (900 ft), Key (Francis Scott) Elementary (2,150 ft), Sunset Elementary (2,300 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 47th Avenue
All addressesViewing recommendations
What's worth checking in person before deciding.
- This is a house, not an apartment. Check the lot boundaries, car access, and how water drains from the yard after rain, including whether the neighboring lot sits higher and could send water toward the property.
- Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
- Schedule a viewing in the evening too, on a weekday, to see street traffic, streetlights, and how quiet the neighborhood is after 8 PM.
- Check the roof, gutters, and downspouts for signs of leaks or recent repairs, especially if it has rained recently.
- Knock on a neighboring gate and ask about noise, pets, flooding, or other issues common in the area.
- Ask what heating system is in place (own boiler, wood, gas) and request the last winter month's bills.
- Check the sewer connection (public network or septic tank) and the water source (public network or well), including pressure and water quality.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.