137 Mifflin Street, Philadelphia
technical data · neighborhood and transit
Quick answers
- Does 137 Mifflin Street have open permits or code violations?
- Philadelphia Department of Licenses and Inspections lists 32 permits, 4 not closed, and 13 violations, 1 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 137 Mifflin Street at risk for?
- FEMA's National Risk Index rates the area relatively moderate overall, with elevated heat wave risk.
Permits and code violations
4 permits not closed out. Unfinished permits pass to the next owner. 1 open violation.
- Plumbing permit Aug 2026Completed
- approved plumbing repair work approved per ez permit standard for plumbing. replace ct & fai.
- Plumbing permit Feb 2024Completed
Water service 3/4
- Mechanical / fuel gas permit Jan 2023Expired
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 60,000 btu 95% gas furnace with 3 ton condenser and related ductwork).
- Demolition permit Aug 2018Completed
Interior demo of non-load bearing walls only,no structural work on this permit
- Plumbing permit Sep 2016Completed
Replace curb trap,fai,house drain and 5"lateral-pa1#20162730084-"self-certification's are no longer permitted" - "all excavations and plumbing trenches in excess of 5 feet in depth must have approved shoring in place at the time of inspection"
- Mechanical permit Feb 2016Completed
Install 80k btu 95.5 afue gas furnace, with 3.5 ton a/c condenser 13 seer w/matching coil with duct work thru out
- Plumbing permit Feb 2016Completed
Basement washer, 1st floor ks, 2nd floor 2-wc, 2lav, 1 shower, 1 tub (sf)the installation will comply with the philadelphia plumbing code 2004
- Addition permit Oct 2015Completed
Construction of two (2) story, wood-frame rear addition on reinforced concrete and cmu foundation per plans. both side walls to be rated; no encroachment of adjacent properties. separate permits required for all mechanical, electrical and plumbing work. protection of adjacent properties to be maintained at all times.
- Electrical permit Oct 2015Completed
Complete new 100 amp service & branch wiring to switches, recepts, lights & smokes/co2 detectors as per 2008 nec (south district)
- Alteration permit Sep 2015Completed
Remove existing 2 story front masonry wall 14 x 22 ft. replace with new 8 inch masonry wall, (4" brick & 4" block) on existing foundation. windows and door same location, shall comply with the 2009 international energy efficiency code, u factor of .35, and shall comply with emergency egress standards as per irc. new door opening for 36 inch door. horizontal reinforcement (durawall) every 24 inches. install returns into party walls for structural connection. flash and seal roof to new front. install 2 x 4 frame wall, r-19 insulation and sheetrock on interior front wall for finish. no other work allowed under this permit. an inspection of existing wall to be scheduled with inspector before work starts.
- Zoning/use permit Sep 2015Completed
For the erection of two(2) story addition at rear of an existing two(2) story structure for an existing single family household living. size and location as shown in the application.
- Alteration permit Jul 2015Expired
Ez exterior wall coverings- for the application of exterior wall coverings as per attached standard. deviations from this standard will result in permit revocation and require submission of construction plans.
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
1.3 mi
Publicker Industries Inc. (Deleted 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: Grant Paper Co, 1901 S Water St (600 ft), open. 2 still open. Ask whether groundwater or soil vapor testing was done.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
2,050 ft
Growing Home Garden. Former industrial land in EPA's cleanup and reuse program.
EPA ACRES Brownfields
Toxic release facility
850 ft
Catalyst International Gasket Materials Corp and 4 more within a mile. 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
600 ft
Furness Horace HS (600 ft), Sharswood George Sch (2,100 ft), Kirkbride Eliza B Sch (2,950 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
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More on Mifflin 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.
- 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.
- 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.
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