5817 Knox Street, Philadelphia
technical data · neighborhood and transit
Quick answers
- Does 5817 Knox Street have open permits or code violations?
- Philadelphia Department of Licenses and Inspections lists 24 permits, 10 not closed, and 60 violations, 18 open.
- 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 1, the highest potential. Test for radon before you buy.
- What natural disasters is 5817 Knox Street at risk for?
- FEMA's National Risk Index rates the area relatively low overall, with elevated heat wave risk.
Permits and code violations
10 permits not closed out. Unfinished permits pass to the next owner. 18 open violations.
- Residential building permit Apr 2026Issued
For interior and exterior alterations to an existing attached single-family dwelling to create an egress window and well from the basement level per plans.
- Plumbing permit Dec 2025Completed
Excavate and replace the broken curb trap vent fai
- Mechanical / fuel gas permit Aug 2025Issued
Mechanical / fuel gas permit for combo rp-2025-003216
- Residential building permit Jun 2025Issued
Intreior remodel with rear second and third floor addition to an existing three story single family masonry residence
- Mechanical / fuel gas permit Sep 2024Issued
Ez permit ductwork & warm-air appliances - for the installation of new ductwork, registers/grilles/diffusers, and warm-air appliances as per attached standards. deviations from these standards require submission of construction and site plans. each hvac unit to be self-contained within each dwelling unit. no penetrations of rated assemblies.
- Plumbing permit Sep 2024Issued
Install new fixtures without piping for 1 tub, 1 toilet and 1 sink
- Electrical permit Aug 2024Completed
Rewire all outlets, switches, & lights throughout. install a 100 amp service
- Residential building permit Aug 2024Issued
Ez permit standards alterations- for alterations to an existing one family dwelling as per attached standard. deviations from this standard will result in permit revocation and require submission of construction plans. separate permits are required for plumbing and electrical work and the installation of heating/cooling appliances. structural alteration or repair is expressly prohibited under this permit. prohibited structural work includes any modification to exterior walls, party walls, floor/roof framing or foundations; including underpinning, excavation, and removal of foundation slab.no work may be performed in the basement or cellar.
- Electrical permit Apr 2024Expired
Replace incoming 100 amp service install (1) carbon/smoke detector install (2) dedicated gfci receptacles and circuits install (3) led light fixtures in basement install (2) 10 year battery smoke detectors replace (10) receptacles replace (7) switches all wiring is to be fished through existing walls
- Residential building permit Feb 2023Expired
Renovations and for the erection of an addition and roof deck accesed from the third floor above and at the rear of an existing attached structure.
- Zoning permit Feb 2023Issued
For the erection of an addition and roof deck accesed from the third floor above and at the rear of an existing attached structure. size and location as shown in the application/plans.
- Mechanical / fuel gas permit Sep 2021Completed
Ez permit ductwork & warm-air appliances - for the installation of new ductwork, registers/grilles/diffusers, and warm-air appliances as per attached standards. deviations from these standards require submission of construction and site plans. each hvac unit to be self-contained within each dwelling unit. no penetrations of rated assemblies. (install (1) one hvac and duct work - gas furnace 92% efficient, 80,000 btu,1600 cfm and 3 ton condenser in back yard).
Philadelphia Department of Licenses and Inspections
Safety and environment
FEMA natural hazard risk
Relatively Low
Highest for this area: heat wave. These drive insurance cost here.
FEMA National Risk Index, census tract
Leaking fuel tanks
4 within 1,650 ft
Nearest: Greene St Citgo, 5823 Greene St (600 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
1,400 ft
21 Maplewood Mall. Former industrial land in EPA's cleanup and reuse program.
EPA ACRES Brownfields
Toxic release facility
3,200 ft
Viz Manufacturing Co. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
High-voltage line
1,250 ft
230 kV line run by PECO ENERGY CO.
HIFLD transmission lines
Radon potential
High
Average indoor levels here can exceed 4 pCi/L, EPA's action level. A $15 test kit settles it before you buy.
EPA and USGS Geologic Radon Potential Map
Wildfire risk
Very Low
Wildfire risk is low enough that standard home insurance usually covers it.
FEMA National Risk Index
Nearest public schools
700 ft
Mastery CS-Pickett Campus (700 ft), Lingelbach Anna L Sch (3,100 ft), Mastery CS John Wister Elementary (3,500 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
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 Knox 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.
- 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 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.
- 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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