9257 Keystone Street, Philadelphia
technical data · neighborhood and transit
Quick answers
- Does 9257 Keystone Street have open permits or code violations?
- Philadelphia Department of Licenses and Inspections lists 7 permits, 1 not closed, and 15 violations.
- What is the 2026 conforming loan limit in Philadelphia County?
- $832,750 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 9257 Keystone Street at risk for?
- FEMA's National Risk Index rates the area relatively moderate overall, with elevated heat wave and cold wave risk.
Permits and code violations
1 permit not closed out. Unfinished permits pass to the next owner. No open violations.
- Electrical permit Mar 2026Completed
Install 400 amp service with grounding, ct cabinet, 400 amp electrical panel, lighting, receptacles, switches, and power to equipment as per 2017 nec.
- Commercial building permit Nov 2025Completed
For the erection of an one-story structure as per approved plans. separate permits required for mep work. no excavation greater than 5ft., otherwise separate excavation permit shall be required.
- Zoning permit Oct 2025Issued
Personal vehicle repair and maintenance.; commercial vehicle repair and maintenance
- Zoning permit Dec 2024Completed
For the erection of a semi-detached (1) story structure; for use as storage with two (2) accessory off-street parking spaces, including one (1) van accessible space. size and location as shown on the plan.
- General permit Aug 2023Completed
For the permanent closure-in-place of under-ground storage tank. excavation not to exceed 4ft 7 inches below grade. shoring plans are required for 5 ft and greater below grade.
- Zoning permit Aug 2022Completed
For the lot adjustment to create one (1) lot ("premises f") from two (2) existing lots (4970 arendell ave and 4972 arendell ave), size and location as shown on plan/application.
- Plumbing permit Nov 2009Completed
Dig up and replace water supply and pipe between curb stop & house meter, a notice of plumbing defect wst issued
Philadelphia Department of Licenses and Inspections
Safety and environment
FEMA natural hazard risk
Relatively Moderate
Highest for this area: heat wave, cold wave. These drive insurance cost here.
FEMA National Risk Index, census tract
Superfund site
2.2 mi
Cinnaminson Township (Block 702) Ground Water Contamination (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: Lens Auto Svc, 9337 Torresdale Ave (1,500 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Toxic release facility
1,300 ft
Jowitt Rodgers 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
200 ft
230 kV line run by PECO ENERGY CO.
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
Relatively Low
Wildfire risk is low enough that standard home insurance usually covers it.
FEMA National Risk Index
Conforming loan limit 2026
$832,750
Philadelphia 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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More on Keystone 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.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
- 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.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
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