1426 Diamond Street, Philadelphia
technical data · neighborhood and transit
Quick answers
- Does 1426 Diamond Street have open permits or code violations?
- Philadelphia Department of Licenses and Inspections lists 48 permits, 22 not closed, and 60 violations, 4 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 1426 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
22 permits not closed out. Unfinished permits pass to the next owner. 4 open violations.
- Plumbing permit Aug 2026Issued
- approved plumbing repair work per ez permit standard for plumbing. replace ct, fai, md & 1.5" water service.
- 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-2023-018644 by installing historic doors into front entry.
- 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. installed door, to clear violation cf-2023-017581
- Electrical permit Oct 2025Issued
Amended 3/9/26 previous drawing on 5/9/25 are not approved. see new drawings that were uploaded 2/28/26 installation of a 400-amp service. interior wiring of 6 dwelling units and common areas. installation of fire alarm throughout property. all work per plans nec 2017 nfpa 72 2016 & the philadelphia fire code 2018 renovation of and existing multi-family apartments. new lighting, outlets and devices. existing incoming service to remain as is. new tenant panels fire alarm installation
- Mechanical / fuel gas permit Oct 2025Issued
For the installation of registers, diffusers, and appliances with associated ductwork. appliances to be installed in accordance with the manufacturer’s specifications. all work to be done per approved plans. if field conditions vary contact design engineer prior to the start of any work. separate permits required for all other work. **subject to the following condition of approval from the philadelphia historical commission: any new exterior vents on side facade must be painted to match surrounding brick. no venting on front facade, no work to any windows or doors. **amendment (12-4-2025) updated floor plans per amended building permit plans.
- Plumbing permit Sep 2025Issued
Amendment 1/26/2026 revision of plumbing plans to relfect amended building plans. increase in size of below grade piping to accomodate additional load on plumbing system. interior renovations to existing 6 dwelling building. interior installation of drainage, waste, vent, and water supply for listed fixtures rough to finish water heaters suspended in the air shall be braced, piped, and supported relief piping shall discharge to an approved receptor. all work performed in compliance with 2018 ppc and approved plans.
- Commercial building permit Apr 2025Amendment applicant revisions
For level ii alterations to existing six (6) dwelling units to include the installation of star bolts, new partitions, fixtures, furnishings, finishes as per approved plans. separate permits required for mep work. *2018 iebc* amendment 8/26/25 to include layout changes as per approved plans.
- Plumbing permit Dec 2022Completed
Install 1 inch water service, 1 building drain, 1 curb trap, 1 fai, 1 sand interceptor, 8 water closets, 8 lavatories, 8 shower/tubs, 3 hot water heaters, 4 washing machine boxes, 3 floor drains, 3 kitchen sinks, 1 ejector sump pump, 1 sump pump and 2 hose bibbs according to the 2018 ppc.
- Electrical permit Dec 2022Completed
Install 300 amp service. rough in and furnish all lights fixtures through out the space with decora devices wired according to electrical plans as per 2017 nec. install fire alarm as per 2016 nfpa 72.
- Mechanical / fuel gas permit Dec 2022Completed
For the installation of registers, diffusers, and appliances with associated ductwork. appliances to be installed in accordance with the manufacturer's specifications. all work is to be done per approved plans. if field conditions vary, contact the design engineer prior to the start of any work. separate permits are required for all other work.
- Fire suppression permit Nov 2022Completed
For the installation of a 2-inch fire service line for an automatic fire suppression sprinkler system with a backflow prevention assembly in accordance with nfpa 13r. all work shall be done in accordance with approved plans/hydraulic calculations.
- Commercial building permit Nov 2022Completed
For new construction of an attached three-story building with cellar for use as multi-family household living (three dwelling units). building to be fully sprinklered with nfpa 13r. separate permits required for mechanical, electrical, plumbing and fire sprinkler.
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 (350 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
3,900 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
400 ft
Duckrey Tanner Sch (400 ft), Philadelphia Military Academy at Elverson (1,000 ft), TECH Freire CS (1,050 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.
- Knock on a neighboring gate and ask about noise, pets, flooding, or other issues common in the area.
- 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.
- Schedule a viewing in the evening too, on a weekday, to see street traffic, streetlights, and how quiet the neighborhood is after 8 PM.
- 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.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.