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COMPANY RECORD · PHILADELPHIA, PA

Catalyst Builders LLC — permit history in Philadelphia, PA

Catalyst Builders LLC appears on 86 Philadelphia permit records from 2021 through 2026, most often residential building (74.4% of the record).

Permit categories

CategoryPermitsShare
Residential Building6474.4%
Building1315.1%
Site / Utility Permit78.1%
Mechanical11.2%
Zoning11.2%

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

Activity by year

YearPermits issued
202113
20228
20235
202416
202519
202625

Busiest year on record: 2026, with 25 permits. One project can account for several filings, so read this as filing activity rather than workload.

PROJECTS AHEAD SEARCH

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This page is a snapshot of Catalyst Builders LLC. The search behind it holds more than 242,223 Philadelphia permits naming a contractor, since 2021: 82,008 plumbing permits, 51,127 electrical permits, 25,710 mechanical permits, 25,367 residential building permits, 24,512 zoning permits.

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Names on the same project timelines

Name in sourceLinked permitsLast seen
East Coast Electrical Services Inc222026-07-22
Plumetrix Inc202026-09-16
Sanks Mechanical132026-06-24
Burnsies Plumbing LLC102024-08-19
Ak Scorpion Inc92022-03-31
Angel Heating & Cooling Inc92025-01-24
Ayn HVAC Inc72023-08-14
Michael J Mccullough Jr72026-10-26
Altin Xhixho62026-03-19
Ehmann Electrical Services LLC52022-07-06
AC Comfort HVAC LLC52026-05-08
Andrius Ratkevicius Inc42022-01-26

31 named participants share a resolved project timeline with Catalyst Builders LLC. 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
2447 N 33RD ST2026-10-20
2154 N NEWKIRK ST2026-10-02
135 E CUMBERLAND ST2026-09-17
2682 DEACON ST2026-09-16
526 E MOUNT AIRY AVE2026-09-11
1435 N 12TH ST2026-09-10
1209 S 15TH ST2026-08-27
2003 N 33RD ST2026-08-26
2038 WALLACE ST2026-08-07
2111-13 N 33RD ST2026-07-30
2537 N 34TH ST2026-05-14
2659 ROBERTS AVE2026-05-05
2544 N 33RD ST2026-05-04
2546 N 33RD ST2026-04-22

73 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.

Also named on permits at the same addresses

CompanyShared addressesYears
Plumetrix Inc232024–2026
East Coast Electrical Services Inc222021–2026
Christopher Johnson212021–2026
Sanks Mechanical132024–2026
Burnsies Plumbing LLC132021–2026
Boke Plumbing & Heating LLC102025–2026
Angel Heating & Cooling Inc102021–2026
Ak Scorpion Inc102021–2022

Companies that also appear in Philadelphia permit records at addresses where Catalyst Builders LLC filed, in any year. Sharing an address is a documented co-appearance, not proof that they worked on the same project or with each other.

Permits on record

86 permits; open the 50 most recent
PermitIssuedCategoryAddress in sourceScope as filedDeclared value
RP-2026-0087522026-10-20Residential Building2447 N 33RD STINTERIOR ALTERATION OF EXISTING SINGLE-FAMILY ATTACHED STRUCTURE SCOPE INCLUDES NEW INTERIOR PARTITIONS, BASEMENT FINISHES, EGRESS WELLS, AND NEW STAIRWAYS. INTERIOR ALTERATIONS TH
RP-2026-0088022026-10-02Residential Building2154 N NEWKIRK STLEVEL I STRUCTURAL ALTERATIONS (NO CHANGE OF OCCUPANCY) FOR REPAIRS TO EXISTING RESIDENTIAL BUILDING TO INCLUDE STAR BOLTS IN FRONT WALL AND RECONSTRUCTION OF REAR PORTION OF STRUC
SP-2026-0004702026-09-17Site / Utility Permit135 E CUMBERLAND STSite / Utility Permit for RP-2026-001661
SP-2026-0011302026-09-16Site / Utility Permit2682 DEACON STSite / Utility Permit for RP-2026-008588
RP-2026-0085882026-09-16Residential Building2682 DEACON STFOR THE CONSTRUCTION OF AN ATTACHED STRUCTURE WITH FRONT PORCH, CELLAR AND ROOF DECK ACCESSED BY A ROOF DECK ACCESS STRUCTURE. FOR USE AS SINGLE-FAMILY HOUSEHOLD LIVING. AS PER APP
RP-2026-0092742026-09-11Residential Building526 E MOUNT AIRY AVEFor the addition of an exterior deck at the rear of an existing semi-detached structure. Size and location per plan.
RP-2026-0097512026-09-10Residential Building1435 N 12TH ST- For alterations to an Existing One Family Dwelling as per attached standard. Deviations from this standard will result in permit revocation and require submission of construction
RP-2026-0088782026-08-27Residential Building1209 S 15TH STFor the addition of roof decks above the second and third floor roof levels. For interior and exterior alterations to an existing attached single-family dwelling per plans. Separa
CP-2026-0034072026-08-26Building2003 N 33RD STFOR LEVEL III ALTERATIONS TO AN EXISTING STRUCTURE. ALTERATIONS TO INCLUDE THE ERECTION OF PARTITION WALLS, NEW FINISHES/FURNISHINGS AND NEW STAIRS. ALL WORK TO BE DONE PER APPROVE
ZP-2026-0080882026-08-17Zoning526 E MOUNT AIRY AVEFOR THE ERECTION OF A WALKOUT REAR DECK TO AN EXISTING SEMI-DETACHED BUILDING. SIZE AND LOCATION AS SHOWN IN APPLICATION/PLANS
SP-2026-0007052026-08-07Site / Utility Permit2038 WALLACE STFOR THE REMOVAL / PARTIAL DEMOLITION OF EXISTING SLAB AND FOR THE INSTALLATION OF NEW SLAB TO AN EXISTING STRUCTURE. FOR USE A PREVIOUSLY APPROVED. AS PER APPROVED PLANS. *********
SP-2026-0007622026-07-30Site / Utility Permit2111-13 N 33RD STSite / Utility Permit for CP-2026-002088
RP-2026-0056862026-06-03Residential Building2447 N 33RD STMAKE SAFE PERMIT TO RESOLVE CASE VIOLATION # CF-2026-044082 TO REPAIR REAR EXTERIOR SIDE BEARING WALL AND STABILIZATION OF SOUTHERN WALL AS PER THE ENGINEER'S REPORT AND APPROVED E
RP-2026-0053132026-06-03Residential Building1209 S 15TH ST**MAKE SAFE PERMIT** FOR EXTERIOR MASONRY REPAIRS AND THE INSTALLATION OF STAR BOLTS TO COMPLY WITH VIOLATION # CF-2026-032461. NOT TO EXCEED SCOPE OF WORK NOTED IN ENGINEER'S REPO
CP-2025-0064602026-05-14Building2537 N 34TH ST**LEVEL 3 ALTERATIONS, ADDITION & CHANGE OF OCCUPANCY** FOR THE ERECTION OF AN ADDITION AT THE REAR OF AN EXISTING RESIDENTIAL STRUCTURE FOR USE AS AN APARTMENT WITH THREE (3) DWEL
RP-2026-0036552026-05-05Residential Building2659 ROBERTS AVEFOR INTERIOR ALTERATIONS TO AN EXISTING SINGLE-FAMILY STRUCTURE AS PER APPROVED PLAN. *SEPARATE PERMITS REQUIRED FOR ELECTRICAL, PLUMBING, AND MECHANICAL WORK*
RP-2025-0131982026-05-04Residential Building2544 N 33RD STFOR 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 THRE
RP-2025-0131992026-04-22Residential Building2546 N 33RD STFOR 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 THRE
SP-2025-0009132026-04-07Site / Utility Permit2512 SHARSWOOD STSite / Utility Permit for RP-2025-007076
RP-2026-0018802026-03-25Residential Building2645 DEACON STFOR INTERIOR ALTERATIONS TO AN EXISTING SINGLE-FAMILY STRUCTURE AS PER APPROVED PLAN. *SEPARATE PERMITS REQUIRED FOR ELECTRICAL, PLUMBING, AND MECHANICAL WORK*
RP-2025-0132572026-02-05Residential Building2443 N 33RD STALTERATION OF EXISTING SINGLE FAMILY ATTACHED STRUCTURE. SCOPE INCLUDES STRUCTURAL REPAIRS, INTERIOR PARTITIONS, FINISHES, AND FIXTURES PER PLANS. EXISTING BUILDING GFA AND EXTERIO
RP-2025-0125532026-02-03Residential Building2436 N 33RD STFOR ALTERATIONS TO AN EXISTING ATTACHED STRUCTURE USED AS A TWO-FAMILY DWELLING AS PER BUILDING APPLICATION/PLAN.
RP-2025-0125462026-02-03Residential Building2434 N 33RD STFOR ALTERATIONS TO AN EXISTING ATTACHED STRUCTURE USED AS A TWO-FAMILY DWELLING AS PER BUILDING APPLICATION/PLAN.
RP-2025-0132582026-01-09Residential Building2457 N 33RD STALTERATION OF EXISTING SINGLE FAMILY ATTACHED STRUCTURE. SCOPE INCLUDES STRUCTURAL REPAIRS, INTERIOR PARTITIONS, FINISHES, AND FIXTURES PER PLANS. EXISTING BUILDING GFA AND EXTERIO
RP-2025-0132552026-01-09Residential Building2409 N 33RD STALTERATION OF EXISTING SINGLE FAMILY ATTACHED STRUCTURE. SCOPE INCLUDES STRUCTURAL REPAIRS, INTERIOR PARTITIONS, FINISHES, AND FIXTURES PER PLANS. EXISTING BUILDING GFA AND EXTERIO
RP-2025-0125042025-12-31Residential Building5025 HAZEL AVEFOR THE REMOVAL AND REPLACEMENT IN KIND OF THE REAR ONE-STORY PORTION AND INTERIOR ALTERATIONS TO AN EXISTING SINGLE-FAMILY STRUCTURE AS PER APPROVED PLAN. NO CHANGE IN EXTERIOR BU
RP-2025-0092142025-12-02Residential Building1928 S 65TH STIN ACCORDANCE WITH CODE BULLETIN PM-1801, A PA PROFESSIONAL ENGINEER IS REQUIRED TO MONITOR REPAIRS MADE UNDER THIS PERMIT. THE ENGINEER MUST SUBMIT A SEALED STATEMENT TO THE DEPAR
RP-2025-0114412025-11-19Residential Building2544 N 33RD STMAKE SAFE PERMIT TO COMPLY WITH UNSAFE VIOLATION CF-2022-061426 TO INCLUDE REPAIR TO EXTERIOR MASONRY WALL PER APPROVED PLANS, ENGINEER’S REPORT AND IN ACCORDANCE WITH CODE BULLET
CP-2025-0053722025-11-04Building1800 MASTER STFOR THE STRUCTURAL REPAIR TO EXTERIOR WALLS TO RESOLVE CASE #CF-2025-104795. A SEPARATE PERMIT IS REQUIRED FOR ANY ADDITIONAL ALTERATIONS THAT ARE NOT SPECIFICALLY ADDRESSED ON CAS
RP-2025-0070762025-10-30Residential Building2512 SHARSWOOD STFOR THE ERECTION OF AN ATTACHED BUILDING AS PER APPROVED PLANS. BUILDING TO BE FULLY SPRINKLERED PER NFPA 13D. SEPARATE PERMITS REQUIRED FOR MEP & FP WORK.
RP-2025-0095262025-10-09Residential Building5127 IRVING STMAKE SAFE PERMIT TO COMPLY WITH CASE #CF-2025-068244- FOR THE FRONT PORCH REPAIR TO AN EXISTING STRUCTURE AS PER ENGINEER'S REPORT AND PLANS. ABUTTING SIDEWALK MUST BE CLOSED WIT
SP-2025-0011292025-10-04Site / Utility Permit2943 CECIL B MOORE AVESite / Utility Permit for RP-2025-007901
SP-2025-0012162025-10-04Site / Utility Permit2945 CECIL B MOORE AVESite / Utility Permit for RP-2025-007941
RP-2025-0079412025-10-01Residential Building2945 CECIL B MOORE AVEFOR THE ERECTION OF AN ATTACHED THREE (3) STORY STRUCTURE. FOR USE AS A SINGLE FAMILY HOUSEHOLD LIVING. BUILDING TO BE SPRINKLERED IN ACCORDANCE WITH NFPA 13D THROUGHOUT. ALL WORK
RP-2025-0079012025-10-01Residential Building2943 CECIL B MOORE AVEFOR THE ERECTION OF AN ATTACHED STRUCTURE AS PER APPROVED PLANS. BUILDING TO BE FULLY SPRINKLERED. SEPARATE PERMITS REQUIRED FOR MEP &FP WORK.
RP-2025-0078002025-09-26Residential Building1319 S 53RD STRENOVATION TO AN EXISTING 2-STORY SINGLE FAMILY HOUSE, DETAILS PER PLANS. no excavation in the basement and no lowering of basement floor included.
RP-2025-0072282025-07-31Residential Building4417 N 9TH STFOR ALTERATIONS TO AN EXISTING 2-STORY SEMI-DETACHED STRUCTURE USED AS A TWO-FAMILY DWELLING AS PER BUILDING APPLICATION/PLAN.
RP-2025-0042502025-07-31Residential Building4695 N 16TH STFor interior and exterior alterations to an existing attached structure to convert for the use as a two-family dwelling per plans. Separate permits are required for all associated
RP-2025-0054402025-05-29Residential Building1925 N 32ND STFOR THE INSTALLATION OF THREE (3) STARBOLTS TO THE REAR WALL AND INTERIOR ALTERATIONS TO AN EXISTING SINGLE-FAMILY DWELLING AS PER APPROVED PLAN. *SEPARATE PERMITS REQUIRED FOR ELE
RP-2025-0041082025-05-23Residential Building2929 W SUSQUEHANNA AVEFOR INTERIOR ALTERATIONS TO AN EXISTING ATTACHED SINGLE-FAMILY DWELLING AS PER APPROVED PLAN. *SEPARATE PERMITS REQUIRED FOR ELECTRICAL, PLUMBING, AND MECHANICAL WORK* **UNDERPINNI
RP-2025-0032582025-05-09Residential Building1231 S MARKOE STFOR INTERIOR ALTERATIONS TO AN EXISTING ATTACHED STRUCTURE USED AS A SINGLE-FAMILY DWELLING AS PER BUILDING APPLICATION/PLAN.
RP-2025-0039332025-04-29Residential Building2623 N JESSUP STCHANGE OF USE TO TWO-FAMILY RESIDENTIAL (R-3 OCCUPANCY) AND LEVEL II INTERIOR ALTERATIONS OF EXISTING PROPERTY. SCOPE INCLUDES NEW INTERIOR PARTITIONS FOR TWO-FAMILY USE, STRUCTURA
RP-2025-0017212025-04-14Residential Building1215 N 28TH STFOR THE COMPLETE DEMOLITION OF AN EXISTING BUILDING. FOR THE CONSTRUCTION OF AN ATTACHED BUILDING TO INCLUDE A BALCONY AT THE REAR THIRD FLOOR. FOR USE AS A SINGLE-FAMILY HOUSEHOLD
RP-2024-0138162025-01-16Residential Building3122 TASKER STFOR LEGALIZATION OF A STRUCTURAL PORCH, WALL AND CHIMNEY REPAIR TO RESOLVE CASE #CF-2024-085729. A SEPARATE PERMIT IS REQUIRED FOR ANY ADDITIONAL ALTERATIONS THAT ARE NOT SPECIFICA
CP-2024-0046412024-11-22Building2341 N COLLEGE AVEFOR THE ERECTION OF A WOOD FRAMED ADDITION AND LEVEL III ALTERATIONS TO INCLUDE NEW PARTITIONS, FIXTURES, FURNISHINGS, FINISHES AS PER APPROVED PLANS. BUILDING TO BE SPRINKLERED PE
CP-2023-0060092024-09-17Building1904 N 2ND STFOR THE LEGALIZATION OF LEVEL III ALTERATIONS AND CHANGE OF OCCUPANCY. SEPARATE PERMITS REQUIRED TO MECHANICAL, ELECTRICAL AND PLUMBING. REFERENCE BBS NOTICE OF DECISION (CALEND
RP-2024-0088862024-09-10Residential Building1613 N 33RD STMAKE SAFE PERMIT TO COMPLY WITH CF-2023-101430 TO INCLUDE STARBOLTS, REPAIRS/REPLACEMENT OF EXTERIOR BRICK WALL AND FRAMING PER APPROVED PLANS AND IN ACCORDANCE WITH CODE BULLETIN
CP-2023-0067592024-08-09Building2926 W OXFORD STFOR NEW CONSTRUCTION OF A THREE- STORY WOOD-FRAME ATTACHED STRUCTURE ON REINFORCED CONCRETE FOOTINGS/FOUNDATIONS WITH TWO(2) ROOF DECKS AND TWO (2) ROOF DECK ACCESS STRUCTURES. FOR
RP-2024-0043962024-07-10Residential Building1609 N DOVER STFOR ALTERATIONS TO AN EXISTING SINGLE-FAMILY DWELLING PER APPLICATION/PLAN.
CP-2024-0033412024-07-01Building2401 CECIL B MOORE AVEFOR THE REPLACEMENT OF A PORTION OF THE REAR AND SIDE EXTERIOR WALLS TO RESOLVE CASE CF-2024-042414. ALL WORK TO BE DONE PER APPROVED PLANS AND ENGINEERING INSPECTION LETTER. IF FI

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 →

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