412 Diamond Street, Philadelphia
technical data · neighborhood and transit
Quick answers
- Does 412 Diamond Street have open permits or code violations?
- Philadelphia Department of Licenses and Inspections lists 30 permits, 10 not closed, and 43 violations, 7 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 412 Diamond Street at risk for?
- FEMA's National Risk Index rates the area relatively low overall, with elevated heat wave risk.
Permits and code violations
10 permits not closed out. Unfinished permits pass to the next owner. 7 open violations.
- Plumbing permit Aug 2026Issued
- approved plumbing repair work per ez permit standard for plumbing replace ct and fai
- Electrical permit Feb 2026Completed
Wire through two-family three story, decora devices, switches, receptacles, smokes, 4'' led lights, and arcf breakers according to nec
- Mechanical / fuel gas permit Jan 2026Completed
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. multi family - each hvac unit to be self-contained within each dwelling unit. no penetrations of rated assemblies. install (2) hvac systems, ductwork, and 14 total diffusers in a two family dwelling. each dwelling will have an 80k btu furnace and a 2 ton ac unit.
- Plumbing permit Jan 2026Completed
Installing 12 fixtures 2 hwh 2 lavs 2 toilets 2 ks 2 washers 2 shower/tubs
- Residential building permit Jan 2026Completed
For level iii alterations with a partial change of occupancy (no change of occupancy classification, group r-3 to group r-3) to create a two-family dwelling within an existing three (3) story building as per approved plans. existing building not required to be sprinklered. *2018 iebc review* *separate permits required for electrical, plumbing, and mechanical work*
- Administrative permit Nov 2025Issued
Co only for a two-family household living.
- Zoning permit May 2025Issued
Residential - household living - two-family
- General permit minor May 2023Expired
For minor construction work at the subject property in accordance with all applicable provisions of the philadelphia code, all references codes and standards, and the attached ez standard, where included. deviation from this standard shall result in permit revocation. a separate permit from the philadelphia department of streets is required for any sidewalk and street closures. all means of pedestrian protection required at the site in accordance with the philadelphia building code chapter 33 shall be in place prior to start of work.
- Zoning permit Nov 2022Expired
For the partial demolition at the rear; erection of an addition above existing second story, roof deck and roof deck access structure to an existing attached building (size and location as shown on plans).
- Zoning permit Sep 2022Expired
Erection of an attached structure with roof access structure and roof deck above fourth floor level accessed by pilot house.
- Electrical permit Aug 2022Completed
Installation of solar array in accordance with signed standard. amendment: project value is incorrect- value is $14,162.60
- Zoning permit Mar 2022Completed
Residential - household living - single-family
Philadelphia Department of Licenses and Inspections
Safety and environment
FEMA natural hazard risk
Relatively Low
Highest for this area: heat wave. These drive insurance cost here.
FEMA National Risk Index, census tract
Leaking fuel tanks
3 within 1,650 ft
Nearest: Johns Svc Sta & Auto Parts, 2201 N 6th St (1,050 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
800 ft
Davis Lamp Building and 33 more within half a mile. Former industrial land in EPA's cleanup and reuse program.
EPA ACRES Brownfields
Toxic release facility
1,900 ft
York Metal Finishing Co 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
300 ft
McKinley William Sch (300 ft), The U School: Innovative Lab (1,450 ft), Welsh John Sch (1,600 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
9.3 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 Diamond Street
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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 specifically where you'd park: is there paid city parking, who currently holds it, what the permit costs, and how long the waitlist is.
- Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
- 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.
- 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.
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