844 Mercer Street, Philadelphia
technical data · neighborhood and transit
Quick answers
- Does 844 Mercer Street have open permits or code violations?
- Philadelphia Department of Licenses and Inspections lists 50 permits, 11 not closed, and 9 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 844 Mercer 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
11 permits not closed out. Unfinished permits pass to the next owner. No open violations.
- Plumbing permit Jul 2025Completed
Replacing house trap, main drain and fresh air inlet. footway.
- Mechanical / fuel gas permit Jun 2024Completed
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. install new hvac system, ductwork, and 13 diffusers.
- Plumbing permit May 2024Completed
New fixtures with piping to include: 3 water closets, 3 lavatories, 2 shower/tub units, 1 kitchen sink, 1 laundry sink, and 1 water heater. all work per 2018 ppc.
- Electrical permit May 2024Completed
New 100 amp service, meter socket, distribution panel, rewire entire house to include receptacles, lighting circuits, hvac equipment, install smoke alarms and co detectors as required for single household dwelling unit. all work per 2017 nec.
- Residential building permit May 2024Completed
For interior and exterior alterations to an existing attached single-family dwelling per plans. separate permits are required for all associated mechanical, electrical, and plumbing work. basement to remain non-habitable, to be used for storage and utilities only. amend permit 6/24/2024 to replace cover sheet in plan set and note that sprinklers are not required or included in the scope of this permit.
- Zoning permit Apr 2024Issued
Limited lodging
- Plumbing permit Jan 2024Completed
Curb trap, fresh air inlet and main drain
- Residential building permit Aug 2023Completed
For the installation of star bolts and ceiling repairs per plans.
- Electrical permit Jun 2023Completed
Replace existing 100 amp panel with a new 20 circuit 100 amp panel, replace the 100 amp entrance cable. install an additional grounding rod and a cold water ground. as per nec 2017
- Plumbing permit Mar 2023Expired
Repair/replace ct & fai
- Plumbing permit Jan 2023Completed
Repair/replace ct & fai
- Residential building permit Jan 2022Completed
Alteration: interior building; existing single-family dwelling; removal and replacement of basement concrete floor slab.
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
Franklin Slag Pile (MDC) (NPL Site). Check groundwater and vapor reports on the EPA site page.
EPA National Priorities List
Leaking fuel tanks
9 within 1,650 ft
Nearest: L Blakes Getty 97109, Berks St (750 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
950 ft
Whipped Bake Shop. Former industrial land in EPA's cleanup and reuse program.
EPA ACRES Brownfields
Toxic release facility
1,300 ft
V S Philadelphia Galvanizing Llc and 5 more within a mile. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
High-voltage line
0 ft
138 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
Nearest public schools
950 ft
Penn Treaty Sch (950 ft), Adaire Alexander Sch (1,750 ft), Hackett Horatio B Sch (2,600 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
9.4 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 Mercer 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.
The year built, height regime, structure, and elevator for this address are being indexed right now, city by city. Save the page and check back: it fills in over time. If you live here, you can fill it in yourself in a minute by leaving a review.