399 Ellington Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 399 Ellington Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 16 permits, 5 not closed, and 29 violations, 1 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 399 Ellington Avenue at risk for?
- FEMA's National Risk Index rates the area relatively low overall.
Permits and code violations
5 permits not closed out. Unfinished permits pass to the next owner. 1 open violation.
- Otc alterations permit Jan 2025Complete
Reroof- torch down
- Otc alterations permit Jan 2025Complete
Reroof- torch down
- Otc alterations permit Jun 2021Complete
In kind kitchen remodel. no change to floor plan. non structural. (no moving walls.
- Otc alterations permit Dec 2020Complete
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
- Additions alterations or repairs Oct 2019Complete
Fire retardant wall between units. may need to alter electrical and plumbing if necessary for legalization of extg unit. legalization per ordinance 43-14 to comply with complaints #201931514 and 201931071
- Otc alterations permit Dec 2018Complete
Interior renovations. in-kind repair of front stairway and deck with wood materials, all less than 50% repair.
- Otc alterations permit Mar 2018Complete
Replace 4 aluminum windows on front facade with sliding aluminum windows. replace 10 windows on rear and side facade with vinyl windows, not visible from the street. no change to window openings. total: 14 windows. u-factor back 0.32 max. front 0.58
- Otc alterations permit Mar 2018Complete
Replace 4 aluminum windows on front facade with sliding aluminum windows. replace 10 windows on rear and side facade with vinyl windows, not visible from the street. no change to window openings. total: 14 windows. u-factor back 0.32 max. front 0.58
- Otc alterations permit Mar 2018Complete
To comply with nov # 201838911. #2. tear down sheetrock storage unit 8x8" & #7 install - dryer vent. duct shall be metal 14' long max. two 90 degree elbows max, min 4". terminate 3'from property line openings.
- Otc alterations permit Mar 2018Complete
To comply with nov # 201838911. #2. tear down sheetrock storage unit 8x8" & #7 install - dryer vent. duct shall be metal 14' long max. two 90 degree elbows max, min 4". terminate 3'from property line openings.
- Otc alterations permit Apr 2014Issued
Street space
- Otc alterations permit Jan 1997Expired
Reroofing
San Francisco Department of Building Inspection
Safety and environment
FEMA natural hazard risk
Relatively Low
No single natural hazard ranks high for this area.
FEMA National Risk Index, census tract
Leaking fuel tanks
7 within 1,650 ft
Nearest: Bottarini Service Station, 5400 Mission Street (900 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
650 ft
Longfellow Elementary (650 ft), George Washington Elementary (1,750 ft), Panorama Elementary (3,000 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
7.5 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 Ellington 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.
- 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.
- 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.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
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