63 Castillo Street, San Francisco
technical data · neighborhood and transit
Quick answers
- Does 63 Castillo Street have open permits or code violations?
- San Francisco Department of Building Inspection lists 19 permits, 7 not closed, and 25 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 63 Castillo Street at risk for?
- FEMA's National Risk Index rates the area very low overall.
Permits and code violations
7 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Otc alterations permit Jul 2026Issued
Second floor kitchen remodel (120 sq ft) & bathroom (64 sq ft) remodel in-kind. no structural, no changes to walls or openings.
- Otc alterations permit Dec 2025Complete
Remodel 1st fl. add shower, kitchen w 2 electric burner, partion wall on 1st fl
- Otc alterations permit Dec 2025Complete
Remodel 1st fl. add shower, kitchen w 2 electric burner, partion wall on 1st fl
- Otc alterations permit Aug 2025Complete
Replace kitchen cabinet. replace kitchen flooring. no removal of walls
- Otc alterations permit Apr 2021Complete
To compy with nov# 202049961 & planning enforcement 2020007799enf. legalize & modify unpermitted rear deck infill. new bedroom, convert storage to office. legalize (n) tradesman door on 1st fl. reconfigure (e) noncornforming rear stairs.
- Otc alterations permit Feb 2018Issued
Street space
- Otc alterations permit Jun 2014Complete
Add two bedrooms, one bathroom & mud room on 1st floor per plan. remodel (e) kitchen on 2nd floor per plan. remodel (e) bathroom & (e) bedroom on 3rd floor per plan.
- Otc alterations permit Apr 2009Issued
Reroofing
- Otc alterations permit Apr 2009Issued
Reroofing
- Otc alterations permit Jan 2009Complete
Replace 8 windows to double paned. (same size as old ones and same location. 4 windows facing street & 4 windows facing the yard. no structural change
- Otc alterations permit Jan 2009Complete
Replace 8 windows to double paned. (same size as old ones and same location. 4 windows facing street & 4 windows facing the yard. no structural change
- Otc alterations permit Jul 2006Complete
Comply w/ nov 200668596. remove illegal unit. 2 rooms to be storage, 1 room to be laundry room. legalize existing full bathroom at ground floor.
San Francisco Department of Building Inspection
Safety and environment
FEMA natural hazard risk
Very Low
No single natural hazard ranks high for this area.
FEMA National Risk Index, census tract
Nearest active fault
4.5 mi
San Andreas fault zone, slip rate greater than 5.0 mm/yr. Ask about seismic retrofit and earthquake insurance.
USGS Quaternary Fault Database
Quakes M4.5+ since 1970
2 within 30 mi
Every recorded earthquake of magnitude 4.5 or stronger within 30 miles.
USGS earthquake catalog
Superfund site
2.9 mi
Hunters Point Naval Shipyard (NPL Site). Check groundwater and vapor reports on the EPA site page.
EPA National Priorities List
Leaking fuel tanks
1 within 1,650 ft
Nearest: Mcdonald'S Restaurant, 2750 Geneva (850 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Toxic release facility
3,850 ft
Pacific Lithograph Co Inc and 1 more within a mile. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
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
1,550 ft
Bayshore (1,550 ft), McLaren (John) Children Centers (2,450 ft), Visitacion Valley Elementary (2,700 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
6.6 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 Castillo Street
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.
- 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.
- 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.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
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