What the public permit record shows, not self-reported reviews.
Is CATALYST BUILDERS LLC a real contractor?
CATALYST BUILDERS LLC appears in public building-permit records with 201 permits filed through 2026 in and around City of Philadelphia, PA. Permits are filed with local government before work begins, so this is a matter of public record, not a self-reported listing.
How is CATALYST BUILDERS LLC's track record verified?
Every figure on this page comes from building permits pulled from municipal records and matched to CATALYST BUILDERS LLC by the contractor name on each permit. Permit records cannot be purchased or faked the way online reviews can, which makes them a stronger signal of real, completed work.
Is CATALYST BUILDERS LLC licensed and insured?
This profile is built from permit records, which confirm permitted work but do not include license status. CATALYST BUILDERS LLC has not claimed this profile to add license or insurance details. Confirm licensing directly with your state or local board before hiring.
How recent is CATALYST BUILDERS LLC's work?
The most recent permit on record for CATALYST BUILDERS LLC is dated 2026-05-14, with 201 permits on file in total.
**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) DWELLING UNITS (R-2 OCCUPANCY). 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. **NO EXCAVATION GREATER THAN 60 INCHES WITH THIS PERMIT **City of Philadelphia · 2026
FOR INTERIOR ALTERATIONS TO AN EXISTING SINGLE-FAMILY STRUCTURE AS PER APPROVED PLAN.
*SEPARATE PERMITS REQUIRED FOR ELECTRICAL, PLUMBING, AND MECHANICAL WORK*City of Philadelphia · 2026
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 IRC REVIEW*
*SEPARATE PERMITS REQUIRED FOR ELECTRICAL, PLUMBING, AND MECHANICAL WORK*City of Philadelphia · 2026
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 IRC REVIEW*
*SEPARATE PERMITS REQUIRED FOR ELECTRICAL, PLUMBING, AND MECHANICAL WORK*City of Philadelphia · 2026
Site / Utility Permit for RP-2025-007076City of Philadelphia · 2026
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Are you CATALYST BUILDERS LLC?
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FOR INTERIOR ALTERATIONS TO AN EXISTING SINGLE-FAMILY STRUCTURE AS PER APPROVED PLAN.
*SEPARATE PERMITS REQUIRED FOR ELECTRICAL, PLUMBING, AND MECHANICAL WORK*
City of Philadelphia · 2026
ALTERATION OF EXISTING SINGLE FAMILY ATTACHED STRUCTURE. SCOPE INCLUDES STRUCTURAL REPAIRS, INTERIOR PARTITIONS, FINISHES, AND FIXTURES PER PLANS. EXISTING BUILDING GFA AND EXTERIOR ENVELOPE LIMITS TO REMAIN. NO BASEMENT EXCAVATION AND NO LOWERING OF BASEMENT FLOOR . DETAILS AS SHOWN ON THE PLAN.City of Philadelphia · 2026
FOR ALTERATIONS TO AN EXISTING ATTACHED STRUCTURE USED AS A TWO-FAMILY DWELLING AS PER BUILDING APPLICATION/PLAN.City of Philadelphia · 2026
FOR ALTERATIONS TO AN EXISTING ATTACHED STRUCTURE USED AS A TWO-FAMILY DWELLING AS PER BUILDING APPLICATION/PLAN.City of Philadelphia · 2026
ALTERATION OF EXISTING SINGLE FAMILY ATTACHED STRUCTURE. SCOPE INCLUDES STRUCTURAL REPAIRS, INTERIOR PARTITIONS, FINISHES, AND FIXTURES PER PLANS. EXISTING BUILDING GFA AND EXTERIOR ENVELOPE LIMITS TO REMAIN. NO BASEMENT EXCAVATION AND NO LOWERING OF BASEMENT FLOOR . DETAILS AS SHOWN ON THE PLAN.City of Philadelphia · 2026
ALTERATION OF EXISTING SINGLE FAMILY ATTACHED STRUCTURE. SCOPE INCLUDES STRUCTURAL REPAIRS, INTERIOR PARTITIONS, FINISHES, AND FIXTURES PER PLANS. EXISTING BUILDING GFA AND EXTERIOR ENVELOPE LIMITS TO REMAIN. NO BASEMENT EXCAVATION AND NO LOWERING OF BASEMENT FLOOR . DETAILS AS SHOWN ON THE PLAN.City of Philadelphia · 2026
FOR 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 BUILDING DIMENSIONS OR GFA.
*SEPARATE PERMITS REQUIRED FOR ELECTRICAL, PLUMBING, AND MECHANICAL WORK*City of Philadelphia · 2025
Permitted projects on public record. Addresses are omitted for privacy.