4420 Walnut Street, Philadelphia
technical data · neighborhood and transit
Quick answers
- Does 4420 Walnut Street have open permits or code violations?
- Philadelphia Department of Licenses and Inspections lists 19 permits, 1 not closed, and 18 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 4420 Walnut Street at risk for?
- FEMA's National Risk Index rates the area relatively moderate overall, with elevated heat wave risk.
Permits and code violations
1 permit not closed out. Unfinished permits pass to the next owner. No open violations.
- Commercial building permit Aug 2024Completed
Make safe permit to comply with cf-2023-107694 to include partial demolition of front of exterior columns and balconies per approved plans and in accordance with code bulletin pm-1801. licensed pa professional engineer is required to monitor repairs made under this permit. the engineer must submit a sealed statement to the department confirming that the structure is in sound condition at completion. separate permits required for additional alterations not addressed in approved plans.
- Zoning permit Jul 2024Issued
For the partial demolition to the front structure of an existing semi-detached building. size and location as per plans. amendment: add 4418 walnut street as part of partial demolition
- Alteration permit Jan 2018Completed
Make safe permit to comply unsafe violation no. 589932 to remove and replace existing fire balconies in kind at first through third floors at the rear of an existing thirteen family dwelling as per approved plans. *no interior work on this permit*
- Mechanical permit May 2016Completed
Installation of one (1) commercial kitchen exhaust hood with supply/exhaust tie-in to one (1) return air fan, one (1) exhaust fan & all associated return/exhaust ductwork.***separate permit shall be required for installation of an approved automatic fire supression system***
- Alteration permit Jul 2012Completed
Interior alterations to restaurant.
- Use permit Jul 2012Completed
For the expansion of existng restaurant space into existing vacant space b on first floor with four family dwelling above.
- Electrical permit Jun 2012Completed
Install (5) 240 volt electrical lines for ice cream machine and (4)receptacles- 120 volt.... in accordance with 2008 nec
- Plumbing permit Apr 2012Completed
Will install drain & waterlines to accomodate 1-3 compartment,2 food prep sinks,2 indirect waste,2 hand wash (restaurant)
- Electrical permit Jan 2011Completed
Install fire alarm system,exit/emergency lighting per plans.
- Electrical permit Jan 2011Completed
Install 1 400a 2-phase & 1 400a 1-phase services only.
- Mechanical permit Oct 2010Completed
Install exhaust hood and ductwork for pizza oven as per plans.
- Use permit Oct 2010Completed
For proposed take-out restaurant and proposed out door seating area (completely within the property line) and catering as part of an existing eat in restaurant. no sale of alcoholic beverages for take-out, no live entertainment, no dispensing window in space a with vacant space b on 1st floor (use registration permit required prior to occupancy) both spaces innerconnected by a common corridor(vestibule) in the same building with existing four (4) family dwelling above. no sign. no change in ht or area.
Philadelphia Department of Licenses and Inspections
Safety and environment
FEMA natural hazard risk
Relatively Moderate
Highest for this area: heat wave. These drive insurance cost here.
FEMA National Risk Index, census tract
Superfund site
2.8 mi
Austin Avenue Radiation Site (Deleted NPL Site). Check groundwater and vapor reports on the EPA site page.
EPA National Priorities List
Leaking fuel tanks
14 within 1,650 ft
Nearest: 7 Eleven 40460, 4601 Walnut St (650 ft), open. 5 still open. Ask whether groundwater or soil vapor testing was done.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
700 ft
4415 Chestnut St and 15 more within half a mile. Former industrial land in EPA's cleanup and reuse program.
EPA ACRES Brownfields
Toxic release facility
3,750 ft
Good Humor Corp. 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
1,150 ft
Penn Alexander Sch (1,150 ft), Lea Henry C Sch (1,350 ft), Robeson HS for Human Services (1,800 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
5.9 mi
Philadelphia International (PHL). Aircraft may be audible under approach paths.
FAA large-hub airports
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 Walnut Street
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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.
- 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.
- 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.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
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