423 High Street, Philadelphia
technical data · neighborhood and transit
Quick answers
- Does 423 High Street have open permits or code violations?
- Philadelphia Department of Licenses and Inspections lists 9 permits, 1 not closed, and 3 violations, 2 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 423 High 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. 2 open violations.
- Plumbing permit Feb 2026Completed
Plumbing permit (interior) for combo rp-2025-012214
- Mechanical / fuel gas permit Feb 2026Completed
Mechanical / fuel gas permit for combo rp-2025-012214
- Electrical permit Feb 2026Completed
Electrical permit for combo rp-2025-012214
- Residential building permit Jan 2026Completed
For interior alterations to an existing detached structure used as a single-family dwelling as per building application/plan.
- Electrical permit Nov 2024Completed
Installation of roof mounted pv solar system on a residential rooftop. 21 modules, 7.770 kw system size. all work is to be done according to approved drawings-2017 nec. gp-2024-001796
- General permit May 2024Completed
For the installation of residential roof mounted solar panels and related appurtenances as noted on the approved plans. all work to be done per approved plans. if field conditions vary contact design engineer prior to the start of any work. separate permits required for all other work, including all electrical work.
- Electrical permit Mar 2023Completed
1 foyer-rewire hanging fixture and replace socket if needed ( fixture wiring only , not house wiring) 1 mud room-supply and replace 4' fluorescent bulbs with 4' led bulbs, bypass ballast ( 4 bulbs total) 1 second floor bathroom-install gfi protected receptacle above tile next to sink, power from ceiling fixture note: if there is not constant power in ceiling fixture, new gfi will be switched with ceiling light 1 dining room-remove alarm wire on wall 1 third floor-supply and replace dimmer in office note: we will bring round dimmable led fixture in case existing fixture needs to be replaced job cost 1 replace service to a 200 amp service with a 40 position breaker box. including cable and meter box. install 2-8 foot ground rod into the earth where possible and wiring to the cold & hot water pipe and jumped out the water. note labeling of the breakers, allowance for general labeling approximately 15 min. additional label will be an extra charge of $170 per hour for two men. note we cannot be responsible for pre-maturing blowing of breakers to already overloaded circuits or may not be on proper size breakers 1 install gfi protected receptacle on the breaker box wiring and installation cost. note the following list below is not in the contract. option due to power surges and electronics in all equipment today, we strongly recommend surge protection. supply and install surge protection 48 kva peak surge arrester. all work done as per 2017 nec
- Electrical permit Feb 2020Issued
Upgrade to 200amp service. demo all old equipment and replace service cable entry and main breaker. transfer all circuits to new panel as per 2014 nec
- Electrical permit Jan 2020Completed
Electrical: installation of a 5.84kw(dc) solar pv system consisting of 16 lg365n1c-a5 solar modules, and 16 enphase iq7plus-72-2-us microinverter as per 2014
Philadelphia Department of Licenses and Inspections
Safety and environment
FEMA natural hazard risk
Relatively Moderate
Highest for this area: heat wave, cold wave, winter weather. These drive insurance cost here.
FEMA National Risk Index, census tract
Leaking fuel tanks
3 within 1,650 ft
Nearest: Tague Lumber, 560 E High St (1,000 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Toxic release facility
1,500 ft
Viz Manufacturing Co. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
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
Nearest public schools
1,500 ft
Roosevelt Theodore MS (1,500 ft), Mastery CS-Francis D. Pastorius Elementary (3,450 ft), Emlen Eleanor C Sch (3,800 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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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.
- 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.
- 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.
- 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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