Keystone Custom Builders LLC

1 permit

Records on file: 1

Built (as contractor)

1 entry

Issued Feb 18, 2026
2 units
1607-19 Catharine St
Addition and/or Alteration · FOR LEGALIZATION OF LEVEL II ALTERATIONS TO INCLUDE NEW PARTITIONS, FIXTURES, FURNISHINGS, FINISHES TO ADD 2 UNITS FOR NEW TOTAL OF 31 DWELLING UNITS AS PER APPROVED PLANS. SEPARATE PERMITS REQUIRED FOR MEP AND FIRE SUPPRESSION WORK.

Track this owner

We'll flag their next deal, permit, or filing — usually before the neighbors know.

Entities are grouped by a normalized name from the public record; a separate legal entity per building is common, so some portfolios span several related names. Sources: Phila. Dept. of Records (deeds), L&I (permits & violations), Dept. of Revenue (tax delinquencies), reflecting the record as of our last weekly ingest. Verify independently before relying on it.
Last generated August 1, 2026.