1635 47th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 1635 47th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 26 permits, 12 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 1635 47th Avenue at risk for?
- FEMA's National Risk Index rates the area relatively high overall, with elevated earthquake risk.
Permits and code violations
12 permits not closed out. Unfinished permits pass to the next owner.
- Otc alterations permit Mar 2026Complete
Revision to pa#202512041037, slab replacement per added due to unexpected cracking and damage to existing
- Otc alterations permit Feb 2025Complete
Deck and stairs at rear yard, wood patio at ground floor, three new doors and 1 window at back rear wall, demolish closet at second floor, add interior door in office.
- Otc alterations permit Jul 2022Complete
Remove and replace insulation & sheetrock in (1) bedroom. 5/8" type x gyp
- Otc alterations permit Apr 2022Complete
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
- Otc alterations permit Mar 2022Complete
Repair front stair in kind. replace railing and bring up to code.
- Otc alterations permit Aug 2021Complete
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
- Otc alterations permit Jun 2021Cancelled
To obtain final inspection for work approved. under permit application no(s) 201805027934: all work is completed.
- Otc alterations permit Apr 2021Complete
1 bathroom remodel in-kind. new vanity, shower & toilet. no new wall. no wal relocation. new lighting shall comply with cec150.0(k)s.
- Otc alterations permit May 2020Cancelled
Front exterior stair is rotten & unsafe. replace all steps and handrail, in-kind, no changes to any configuration and structural work. all work in-kind, less than 50% repair/replacement.
- Otc alterations permit Apr 2019Complete
Reroofing
- Otc alterations permit May 2018Issued
In kind replacement of (e) dryrot wooden balcony at front of property. in kind replacement of 2 street-facing glass sliding doors at 2nd floor
- Otc alterations permit Apr 2017Issued
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
Leaking fuel tanks
3 within 1,650 ft
Nearest: Tosco (Unocal) Station #3390, 3701 Noriega St. (1,450 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
1,200 ft
Noriega Children Center (1,200 ft), Key (Francis Scott) Elementary (1,550 ft), Sunset Elementary (2,850 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.
- 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.
- 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 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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