522 Ellington Avenue, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 522 Ellington Avenue have open permits or code violations?
- San Francisco Department of Building Inspection lists 23 permits, 6 not closed, and 11 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 522 Ellington Avenue at risk for?
- FEMA's National Risk Index rates the area relatively low overall.
Permits and code violations
6 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Otc alterations permit Feb 2024Complete
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
- Otc alterations permit Feb 2024Issued
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
- Otc alterations permit Apr 2023Issued
Re-roofing: remove and replace roofing material / existing roofing material (in-kind)
- Otc alterations permit May 2017Complete
To comply #201774162 items 2 & 4. change a window in kind-in same location not visible from the street. replace the furnace and replace a water heater.
- Otc alterations permit May 2015Issued
Street space and sidewalk permit
- Otc alterations permit Jan 2010Complete
Construct staircase at rear of bldg. (size approx. 19'-0"x4'-0") construct (n) 4'x4' skylight at ceiling fo dining room.
- Otc alterations permit Jul 2009Complete
Revision to pa# 200801031806:- new window i the lightwell at the north side on first and second floors. reduce the size of windows at the rear on first and second floors.
- Otc alterations permit Dec 2008Complete
To comply with n.o.v. 200885644. add 1/2 bathroom @ ground floor only. ground floor approved under appl. 200711027210.
- Otc alterations permit May 2008Complete
Change name from family room to living room per approval plan #200711027210 as instruction by buidling inspection.
- Additions alterations or repairs Jan 2008Complete
Construct a 2 story addition to the rear of the ex. bldg. the addition will be the same height as the existing bldg.
- Otc alterations permit Nov 2007Complete
Revision to application #200709213354, remove existing post, add new post beam & foundation. rearrange bathroom, relocate furnace on ground floor, rearrange bathroom, shift wall in between living & dining rooms on 2nd floor per plans. remove proposed washer, dryer & sink
- Otc alterations permit Nov 2007Complete
Add 2 bedroom, one living room and one bathroom in basement and remodel (e) kitchen per nov #200713451.
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
5 within 1,650 ft
Nearest: Shell Station #4003, 5897 Mission Street (1,350 ft), open. 1 still open. Ask whether groundwater or soil vapor testing was done.
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
450 ft
Longfellow Elementary (450 ft), George Washington Elementary (1,500 ft), Panorama Elementary (3,300 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.
- Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
- 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.
- 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.
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