404 Mifflin Street, Philadelphia
technical data · neighborhood and transit
Quick answers
- Does 404 Mifflin Street have open permits or code violations?
- Philadelphia Department of Licenses and Inspections lists 41 permits, 10 not closed, and 18 violations, 8 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 404 Mifflin Street at risk for?
- FEMA's National Risk Index rates the area relatively high overall, with elevated inland flooding and heat wave risk.
Permits and code violations
10 permits not closed out. Unfinished permits pass to the next owner. 8 open violations.
- Plumbing permit Aug 2026Completed
Curb trap, fresh air inlet & main drain.
- Mechanical / fuel gas permit May 2026Issued
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. goodman 2.5 ton heat pump system, new ductwork, and 9 registers
- Residential building permit Feb 2026Issued
For the erection of a rear addition and interior alterations throughout an existing attached structure used as a single-family dwelling as per building application/plan.
- Electrical permit Feb 2026Issued
Electrical permit for combo rp-2026-000276
- Plumbing permit Jan 2026Issued
Plumbing permit (interior) for combo rp-2026-000276
- Zoning permit Oct 2025Issued
For the erection of a vertical addition to an existing attached structure. size and location as shown in application/plans
- Electrical permit Dec 2023Completed
Fish new wiring to nec code 2017 throughout home. install new tamper resistant switches and outlets.
- Plumbing permit Jul 2023Completed
Plumbing permit (interior) for combo rp-2022-012868
- Residential building permit Mar 2023Issued
For interior alterations to an existing two-family dwelling per plans. renovations to upper unit only. no changes to fire rated assemblies. separate permits are required for all associated mechanical, electrical and plumbing work.
- Electrical permit Feb 2023Completed
Replace damaged electrical panel as per 2017 nec
- Mechanical / fuel gas permit Jan 2023Completed
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 and replace gas furnace and 60,000 btu 95% afue
- Electrical permit Dec 2022Completed
Install 100 amp service, change outlets, lights and switches install carbon in the basement. install 2 outlets in the bedroom and 1 outlet kit all wires are fished as per 2017 nec
Philadelphia Department of Licenses and Inspections
Safety and environment
FEMA natural hazard risk
Relatively High
Highest for this area: inland flooding, heat wave, cold wave. These drive insurance cost here.
FEMA National Risk Index, census tract
Superfund site
1.5 mi
Publicker Industries Inc. (Deleted NPL Site). Check groundwater and vapor reports on the EPA site page.
EPA National Priorities List
Leaking fuel tanks
1 within 1,650 ft
Nearest: Terri Pinto, 1703-13 S 7th St (1,500 ft), open. 1 still open. Ask whether groundwater or soil vapor testing was done.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
900 ft
Growing Home Garden. Former industrial land in EPA's cleanup and reuse program.
EPA ACRES Brownfields
Toxic release facility
1,650 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
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
750 ft
Furness Horace HS (750 ft), Southwark Sch (2,050 ft), Kirkbride Eliza B Sch (2,150 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
5.9 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 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.
- 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.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
- 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.