320 Lathrop Avenue, San Francisco
Estimated number, map position is approximatetechnical data · neighborhood and transit
Quick answers
- Does 320 Lathrop Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 21 permits, 14 not closed, and 23 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 320 Lathrop Avenue at risk for?
- FEMA's National Risk Index rates the area relatively moderate overall, with elevated earthquake risk.
Permits and code violations
14 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Otc alterations permit Jul 2026Issued
Convert 58 sq ft first floor storage space to full bathroom.
- Additions alterations or repairs Dec 2015Complete
Vertical & horizontal addition @ rear of building. 2nd floor to include family room & garage. 3rd floor addition to include 3 bedrooms & 2 baths.
- Otc alterations permit Nov 2015Issued
Reroofing
- Otc alterations permit Oct 2015Complete
Re-roofing
- Otc alterations permit Sep 2014Complete
Subsurface drainage system to connect to sewer per plans
- Otc alterations permit Feb 2010Complete
Revision to appl #200910209333: remove skylights in kitchen, close second floor rear bedroom & bathroom windows. install vent in bathroom, reduce size of front window on first floor.
- Otc alterations permit Feb 2010Complete
Revision to application 200910209333. install furring walls. replace central heating unit. replace all front windows. replace sheating/sheating/sheetrock in all second floor walls.
- Otc alterations permit Oct 2009Complete
Interior remodel @ 1st & 2nd floor. abate following nov h9404570, 200455356,200452375,20045156,200671813,200683761,200452341. two new bedrooms, full bathroom,family rm & laundry room @ 1st floor. 2nd fl. kitchen remodel.move stairs & 3 new skylights.
- Otc alterations permit Sep 2009Complete
Comply with nov 200683761 to remove debris and damage caused by fire approx 100% of wall covering to be removed. further permits for building, elec, plumb, to be obtained. not visible from street. comply with nov 200455356, roof additions installed w/out permit items 1 and 2
- Otc alterations permit Oct 2007Expired
Replace windows, sheetrock, etc. of interior in fire damaged house. repair all smoke and water damage. no structural work under this permit
- Otc alterations permit Aug 2007Expired
Repair fire damaged interior: (per inspector's instructions) remove debris and fire damaged material to obtain plans and iknspect for furthere damaged
- Otc alterations permit Oct 2006Issued
Reroofing.
San Francisco Department of Building Inspection
Safety and environment
FEMA natural hazard risk
Relatively Moderate
Highest for this area: earthquake. These drive insurance cost here.
FEMA National Risk Index, census tract
Superfund site
1.9 mi
Hunters Point Naval Shipyard (NPL Site). Check groundwater and vapor reports on the EPA site page.
EPA National Priorities List
Leaking fuel tanks
12 within 1,650 ft
Nearest: Macor Inc./Norcal Waste System, 401 Tunnel Ave (850 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
1,050 ft
Blanken Ave Parking Lot Former Schlage Lock Facto. Former industrial land in EPA's cleanup and reuse program.
EPA ACRES Brownfields
Toxic release facility
1,400 ft
Schlage Lock Co and 1 more within a mile. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
High-voltage line
1,100 ft
115 kV line run by PACIFIC GAS & ELECTRIC COMPANY.
HIFLD transmission lines
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
Wildfire risk
Very Low
Wildfire risk is low enough that standard home insurance usually covers it.
FEMA National Risk Index
Nearest public schools
3,350 ft
Visitacion Valley Elementary (3,350 ft), KIPP Bayview Academy (3,400 ft), El Dorado Elementary (3,850 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
6.4 mi
San Francisco International (SFO). Aircraft may be audible under approach paths.
FAA large-hub airports
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 Lathrop 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.
- 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.
- 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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