1658 47th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 1658 47th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 19 permits, 3 not closed, and 9 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 1658 47th Avenue at risk for?
- FEMA's National Risk Index rates the area relatively high overall, with elevated earthquake risk.
Permits and code violations
3 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Violation Mar 2026Complete
Solar permit: installing 15 solar pv modules, 400 watts per module, total no. of rating 6 kw. mounted: roof, ballasted: n | roof mount pv. 6.00 kw. 15 maxeon 400w panels. 15 iq8a enphase micro inverters.
- Otc alterations permit Nov 2024Complete
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
- Otc alterations permit Aug 2023Complete
New office and bathroom at 1st fl. new doors and windows at rear
- Otc alterations permit Jan 2021Complete
Kitchen & bathroom remodel in kind. repair dry rot at the backyard wall. in kind. approx 150 sq ft of wall aera.
- Otc alterations permit Oct 2018Complete
We are replacing part of a damaged stairway with new wood, waterproofing and bricks. less than 50% repair
- Otc alterations permit Jul 2018Complete
Window replacement 7 windows not visible from street. replace with fibrex wood composite in kind replacement. u-factor: 0.32
- Otc alterations permit Oct 2015Complete
Inkind replacement of front facade windows with aluminum-clad wood windows using same style and at same location. u-factor for all new windows replacement shall not exceed 0.32.
- Otc alterations permit Jul 2015Complete
Re-roofing
- Otc alterations permit Jul 2010Issued
Reroofing
- Otc alterations permit Jul 2004Complete
Replace front stucco 25'x10' to comply nov #200448289
- Otc alterations permit Apr 2001Complete
Add bedroom, 1 computer room, &laundry & full bath at ground floor. remove 2nd bath on grd floor.
- Otc alterations permit Dec 1999Complete
Re roofing
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
Leaking fuel tanks
3 within 1,650 ft
Nearest: Tosco (Unocal) Station #3390, 3701 Noriega St. (1,250 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
1,000 ft
Noriega Children Center (1,000 ft), Key (Francis Scott) Elementary (1,500 ft), Sunset Elementary (2,650 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.
- Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
- 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.
- 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.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
- Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
- 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.