1990 48th Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 1990 48th Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 20 permits, 12 not closed, and 21 violations, 6 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 1990 48th 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. 6 open violations.
- Otc alterations permit Sep 2026Issued
Replace kitchen cabinets in kind (only work in kitchen), skim coat stucco all of front facade of building. replace 4 windows at front facade in kind in existing openings. at rear replace 4 windows & 1 door in kind in existing openings. remove wood burning fireplace, sheet metal chimney and patch.
- Otc alterations permit Feb 2026Filed
Exploritory demo for framing observation. squares of sheetrock removed and replaced
- Otc alterations permit May 2025Issued
Obtain a building permit to perform necessary repairs for dry-rot repair at corner bay and stucco on southwest corner visible from the street. shore the structure as needed to mantain safety and stablity during repair work. to comply with notice of violation #202536312.
- Otc alterations permit Apr 2024Issued
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
- Otc alterations permit Nov 2023Complete
Comply wiith nov 202180325: remove downstairs bathroom without permits. electrical and plumbing permits are also required.
- Otc alterations permit Nov 2023Withdrawn
To comply with nov# 202180325. violation code 103a. selsctive demolition (interior only).
- Otc alterations permit Apr 2022Reinstated
Replace 10 windows in kind, upgrade plumbing and electrical to comply and correct violation 202179768: alum clad wood window: upgrade main bathroom.
- Otc alterations permit Nov 2021Withdrawn
To comply with nov #202180325, legalize existing bathroom at ground fl.
- Otc alterations permit Jun 2021Complete
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
- Otc alterations permit Oct 2018Issued
Street space and sidewalk repair
- Otc alterations permit Nov 2017Issued
Street space
- Otc alterations permit Nov 2016Complete
1st floor: add 1 bedroom & 1 full bath. 2nd floor : remodel bath & kitchen.
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
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
1,900 ft
Noriega Children Center (1,900 ft), Sunset Elementary (2,200 ft), S.F. County Special Education (2,900 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 48th 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.
- 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.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
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