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COMPANY RECORD · PHILADELPHIA, PA

Flatiron Building Company — permit history in Philadelphia, PA

Flatiron Building Company appears on 65 Philadelphia permit records from 2021 through 2026, most often building (92.3% of the record).

Permit categories

CategoryPermitsShare
Building6092.3%
Mechanical57.7%

2 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.

Activity by year

YearPermits issued
202111
202214
202315
20247
202513
20265

Busiest year on record: 2023, with 15 permits. One project can account for several filings, so read this as filing activity rather than workload.

Names on the same project timelines

Name in sourceLinked permitsLast seen
Oliver Sprinkler Co., Inc.202025-08-14
Palman Electric Inc152026-04-14
Dwd Mechanical Contractor Inc112025-02-05
Frank Fisher Inc92026-02-24
Oreilly Edward B & Assoc Inc62026-03-06
Chadwick Service Company62026-01-21
Nagel Lavin Inc62026-01-25
Robert Ford52024-01-16
Pmc Mechanical Enterprise, LLC42026-07-06
Binsky & Snyder, LLC42023-11-22
Independence Fire Sprinkler Company42026-04-01
Preferred Fire Protection Inc42024-05-03

33 named participants share a resolved project timeline with Flatiron Building Company. A shared timeline is a research lead, not proof of a partnership or a current contract. Names appear as the authority published them.

Where they worked

Address in sourceMost recent permit
3118-98 CHESTNUT ST2026-07-27
3600-90 WALNUT ST2026-06-15
174 DIAMOND ST2026-05-26
3600-48 CHESTNUT ST2026-05-05
312-38 ARCH ST2026-03-04
601 UNIVERSITY AVE2025-12-18
3002-24 MARIO LANZA BLVD2025-10-23
8000-02 LYONS AVE2025-10-23
500 OSLER CIR2025-10-14
501 OSLER CIR2025-10-14
3600 PINE ST2025-10-14
3905 SPRUCE ST2025-09-29
3300 CHESTNUT ST2025-05-29
3800 WALNUT ST2025-05-23

38 distinct addresses on record; the 14 most recent are shown. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.

Permits on record

65 permits; open the 50 most recent
PermitIssuedCategoryAddress in sourceScope as filedDeclared value
CP-2026-0033492026-07-27Building3118-98 CHESTNUT STFOR LEVEL II ALTERATIONS TO 1ST FLOOR OF AN EXISTING STRUCTURE. ALTERATIONS TO INCLUDE PARTIAL DEMOLITION AND THE ERECTION OF PARTITION WALLS, PROVIDE FINISHES/FURNISHINGS AND ACCE
CP-2026-0018872026-06-15Building3600-90 WALNUT STFOR A LEVEL II INTERIOR ALTERATIONS TO A PORTION OF AN EXISTING STRUCTURE. ALTERATIONS TO INCLUDE THE ERECTION OF PARTITION WALLS, PROVIDE FINISHES/FURNISHINGS, AND ACCESSIBILITY I
CP-2026-0009112026-05-26Building174 DIAMOND STFOR LEVEL II ALTERATIONS (WITH NO CHANGE OF OCCUPANCY) AT BASEMENT OF EXISTING BUILDING. SEPARATE PERMITS REQUIRED FOR MECHANICAL, ELECTRICAL AND PLUMBING.
CP-2026-0011342026-05-05Building3600-48 CHESTNUT ST
CP-2026-0007802026-03-04Building312-38 ARCH ST
CP-2025-0053402025-12-18Building601 UNIVERSITY AVE
CP-2025-0036892025-10-23Building3002-24 MARIO LANZA BLVD
CP-2025-0037092025-10-23Building8000-02 LYONS AVE
CP-2025-0037642025-10-14Building500 OSLER CIR
CP-2025-0037622025-10-14Building501 OSLER CIR
CP-2025-0045362025-10-14Building3600 PINE ST
CP-2025-0041562025-09-29Building3905 SPRUCE ST
CP-2024-0051052025-09-22Building174 DIAMOND ST
CP-2025-0032042025-08-06Building501 OSLER CIR
MP-2025-0023802025-05-29Mechanical3300 CHESTNUT ST
CP-2025-0016772025-05-23Building3800 WALNUT ST
CP-2025-0007052025-03-05Building3300 CHESTNUT ST
CP-2024-0063192025-01-30Building312-38 ARCH ST
CP-2024-0041942024-09-30Building3401-99 SPRUCE ST
MP-2024-0026422024-07-08Mechanical3501 CURIE BLVD
CP-2024-0023662024-06-10Building3600 PINE ST
CP-2024-0023642024-06-04Building3501 CURIE BLVD
CP-2024-0023392024-05-28Building3600 PINE ST
CP-2024-0023432024-05-22Building3600-90 WALNUT ST
CP-2024-0021092024-04-22Building3600 LOCUST WALK
CP-2023-0015692023-12-01Building3406-46 WALNUT ST
CP-2023-0051792023-11-06Building3800 SPRUCE ST
CP-2023-0056662023-10-16Building221 S 34TH ST
CP-2023-0044402023-10-11Building500 OSLER CIR
CP-2023-0049872023-09-25Building500 OSLER CIR
MP-2023-0030352023-08-10Mechanical2564 BELMONT AVE
CP-2023-0034532023-07-13Building2929 WALNUT ST
CP-2023-0035102023-06-27Building501 OSLER CIR
CP-2023-0030582023-06-05Building3600 MARKET ST
CP-2023-0016742023-05-03Building501 OSLER CIR
CP-2023-0004182023-04-25Building2564 BELMONT AVE
CP-2023-0004052023-04-25Building2564 BELMONT AVE
CP-2023-0008222023-04-11Building3401 GRAYS FERRY AVE
CP-2022-0068732023-02-20Building3600 MARKET ST
CP-2022-0059912023-01-03Building3500 PINE ST
CP-2022-0018872022-12-05Building701-15 N BROAD ST
CP-2022-0058312022-11-28Building4000 LOCUST ST
CP-2022-0064142022-11-23Building3601-51 WALNUT ST
CP-2022-0034742022-11-01Building8600 RIDGE AVE
CP-2022-0043982022-10-19Building3301 SOLLY AVE
MP-2022-0027192022-06-06Mechanical3500 PINE ST
CP-2022-0011012022-05-19Building3600 PINE ST
CP-2022-0018212022-05-13Building3600-90 WALNUT ST
CP-2022-0010592022-04-21Building220-60 S 33RD ST
CP-2022-0013262022-04-19Building3500 PINE ST

Fields appear as the issuing authority published them, including spelling and blanks. Scope text is the applicant's description of intended work, not an inspection finding.

Source and limits

Public Philadelphia permit records through 2026, counted by distinct permit number. This is a historical filing record: it cannot show current backlog, pricing, crew availability, licensing or insurance, and a quiet period may only mean work was filed elsewhere. Confirm anything commercial with the company and with the issuing authority before acting. How we build these records, and what we withhold →