251 Mountain Street, Philadelphia
technical data · neighborhood and transit
Quick answers
- Does 251 Mountain Street have open permits or code violations?
- Philadelphia Department of Licenses and Inspections lists 30 permits, 1 not closed, and 15 violations, 3 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 2, moderate potential.
- What natural disasters is 251 Mountain 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. 3 open violations.
- Electrical permit Jun 2025Completed
Installation of a 6.02 kw solar system, consisting of (14) 430 watts / q cells q.tron blk m-g2+ ,and (18)enphase iq8 microinverters / flush rail mountas per 2017 nec. in accordance with attached ez standard
- Residential building permit Jan 2025Completed
Roof top deck and pilot house as per plan.
- Zoning permit Nov 2024Completed
For the erection of a roof deck accessed by a roof access structure above an existing attached three-story structure. size and location as shown on the application/plan.
- Electrical permit Sep 2024Completed
Install 100 amp electrical service, install wiring throughout, switches, receptacle, smokes, co, finish electrical, as per 2017 nec
- Plumbing permit Sep 2024Completed
Installation of plumbing fixtures with piping for a one family dwelling with 2 ba. 2 lav, 2wc, 2 shower/tubs, 1 kitchen sink, 1 laundry sink, 1 hwh 9 fixtures
- Mechanical / fuel gas permit Aug 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. we are installing a high efficiency 90k btu furnace with a coil and 2 ton condenser which will be placed in the rear yard. there will be 8 supply registers and two returns. one on each floor.
- Residential building permit Jul 2024Completed
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. new hardwood flooring throughout; adding 1 additional full bath; add 1/2 bath on first floor; repaint throughout; replace/repair drywall throughout; new cabinets, plumbing fixtures, electrical fixtures, flooring and appliances in kitchen; new electrical fixtures throughout the house; new windows; no work in basement.
- Plumbing permit May 2024Completed
Installing 10 fixtures 1 kitchen sink 1 laundry 3 water closets/urinals 2 showers/ tubs 3 lavs
- Electrical permit May 2024Completed
New wire thru out lighting outlets switches smokes and co's 200 amp service as per 2017 nec code
- Mechanical / fuel gas permit May 2024Completed
Ez permit ductwork & warm-air appliances- for the installation if new ductwork, registers/grilles/diffusers, and warm-air appliances as per attached standards. deviations from these standards require submission of construction and site plans.
- Residential building permit May 2024Completed
Ez permit stadards 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. 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; underpinning and excavations (i.e. digging in basement). no work permited in the basement.
- Electrical permit Oct 2021Completed
Install 60 amp 240 v circuit for a tesla car charger curbside. drilling a hole from inside of home to 12"x12" opening in concrete where we will install a manufactured (by tesla) electrical charging station. charger will be located curb side in front of home. no other wiring to be done. as per 2014 nec
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
1.6 mi
Publicker Industries Inc. (Deleted NPL Site). Check groundwater and vapor reports on the EPA site page.
EPA National Priorities List
Leaking fuel tanks
2 within 1,650 ft
Nearest: Pintos Atlantic Inc, 1317 S 3rd St (1,350 ft), open. 2 still open. Ask whether groundwater or soil vapor testing was done.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
2,250 ft
Growing Home Garden. Former industrial land in EPA's cleanup and reuse program.
EPA ACRES Brownfields
Toxic release facility
800 ft
Catalyst International Gasket Materials Corp and 3 more within a mile. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
Historic listing nearby
250 ft
Vare, Abigail, School. Exterior changes can need preservation review; listed buildings can qualify for rehabilitation tax credits.
National Park Service, National Register
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
1,400 ft
Furness Horace HS (1,400 ft), Kirkbride Eliza B Sch (1,850 ft), Vare-Washington El Sch (2,300 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
6.1 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
Have you lived here? Share your experience.
Leave a reviewThe Address Story
Every address has a context. Read its story.
How much it costs to live here
Price, rent, mortgage, and the city's economic context, all in one place.
The money at this address
Renting, buying, and investing, on the same numbers. Enter the listing price to see all calculations.
Enter a rent and the yield calculation fills in on its own.
Loan calculator for this address
Enter the listing price. The calculation uses only your numbers.
Rough estimate, with a fixed rate. The bank's offer may include fees and insurance.
More on Mountain 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.
- 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.
- 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.
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.