1431 Diamond Street, Philadelphia
technical data · neighborhood and transit
Quick answers
- Does 1431 Diamond Street have open permits or code violations?
- Philadelphia Department of Licenses and Inspections lists 38 permits, 12 not closed, and 60 violations, 18 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 1431 Diamond Street at risk for?
- FEMA's National Risk Index rates the area relatively high overall, with elevated tornado and inland flooding risk.
Permits and code violations
12 permits not closed out. Unfinished permits pass to the next owner. 18 open violations.
- General permit minor Apr 2026Expired
**existing philadelphia historic property** for replacement of existing exterior windows and/or doors in accordance with the attached ez permit windows & doors standard. failure to comply with the attached ez permit windows & doors standard shall result in revocation of this permit. to comply violation cf-2023-016402 by installing historic doors into front entry.
- Zoning permit Sep 2025Issued
Group living - single-room residence
- Electrical permit Jun 2025Completed
Install fire alarm system w/ low frequency sound in all living rms and bedrooms.. install a 400 amp service with 4 meters. wire throughout a three-family dwelling: switches, lights, receptacles, tv's, phones, emergency lights, and interconnected smoke/co alarms . all work is to be done according to approved drawings-2017 nec,2016 nfpa-72,2018 phila fire code.
- Mechanical / fuel gas permit Jun 2025Issued
For installation of hvac system as per approved plans.
- Plumbing permit Feb 2025Completed
Install 1" domestic ,6"storm and curb trap complete with fresh air and main house drains. install (5) lavatories, (5) water closets, (4) tub/shower, (3)laundry sink, (3) kitchen sink, (3)hot water heater, (1) hose bibs.
- Fire suppression permit Feb 2025Issued
Install new fire suppression system complying with nfpa 13r throughout an existing structure. installation to include 2" fire service line and 2." dc wilkins 950 xlt2 backflow prevention assembly as per approved plans. **all work shall be performed by a fire suppression contractor licensed by the city of philadelphia.**
- Commercial building permit May 2024Issued
For the erection of an addition to include new partitions, fixtures, finishes as per approved plans. building to be sprinklered per nfpa 13r minimum. separate permits required for mep and fire suppression work. amendment 8/12/25 to include the replacement of floor joist as per plans. amendment 11/1/26 to change dprc-si.
- Zoning permit Apr 2024Issued
For the erection of a rear addition above the one-story portion of an existing attached structure. size and location as shown on plans.
- Electrical permit Oct 2023Expired
Install fire alarm system w/ low frequency sound in all living rms and bedrooms.. install a 400 amp service with 4 meters. wire throughout a three-family dwelling: switches, lights, receptacles, tv's, phones, emergency lights, and interconnected smoke/co alarms . all work is to be done according to approved drawings-2017 nec,2016 nfpa-72,2018 phila fire code.
- Commercial building permit Sep 2023Expired
For level iii alterations & addition to an existing vacant structure for use as multi-family housing (r-2 occupancy w/3 dwelling uits), alterations to include the erection of partition walls, provide finishes/furnishings and accessibility improvements throughout. all work to be done per approved plans. if field conditions vary contact design engineer prior to the start of any work. separate permits to be obtained for all other work. ** building to be fully sprinklered in accordance with nfpa 13r throughout **
- Zoning permit Aug 2023Issued
For the erection of an addition at the side above existing 1-story portion of existing attached structure. size and location as shown in plan.
- Plumbing permit May 2023Completed
Install 6 hot water heaters, 6 washing machine boxes, 1 backflow preventer, 13 water closets, 13 lavatories, 11 shower/tubs, 6 kitchen sinks, 6 floor drains, 2 ejector sump pumps, 1 sump pump, 1 sand interceptor and 2 storm drains according to the 2018 ppc and per plans.
Philadelphia Department of Licenses and Inspections
Safety and environment
FEMA natural hazard risk
Relatively High
Highest for this area: tornado, inland flooding, heat wave, cold wave, winter weather. These drive insurance cost here.
FEMA National Risk Index, census tract
Leaking fuel tanks
2 within 1,650 ft
Nearest: Broad & Diamond Bp, 2040 N Broad St (400 ft), open. 1 still open. Ask whether groundwater or soil vapor testing was done.
EPA UST Finder, leaking underground storage tank releases
Brownfield site
600 ft
North 16th Street and 5 more within half a mile. Former industrial land in EPA's cleanup and reuse program.
EPA ACRES Brownfields
Toxic release facility
3,750 ft
O F Zurn Co and 1 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
Duckrey Tanner Sch (300 ft), TECH Freire CS (900 ft), Philadelphia Military Academy at Elverson (1,000 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
8.9 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 Diamond Street
All addressesViewing recommendations
What's worth checking in person before deciding.
- This is a house, not an apartment. Check the lot boundaries, car access, and how water drains from the yard after rain, including whether the neighboring lot sits higher and could send water toward the property.
- Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
- Check the roof, gutters, and downspouts for signs of leaks or recent repairs, especially if it has rained recently.
- Ask what heating system is in place (own boiler, wood, gas) and request the last winter month's bills.
- Check the condition of the fence, yard, and sidewalk out front: who is responsible for upkeep, and whether there are any boundary disputes with neighbors.
- Knock on a neighboring gate and ask about noise, pets, flooding, or other issues common in the area.
- Ask to see the construction documents (permit, sign-off) and check for visible cracks on the facade or in the attic/basement.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.