A 50-year-old CO mismatch hiding in plain sight

A prospective buyer engaged us to analyze a three-story mixed-use building that had been under single-family ownership for over five decades. The property appeared to be a straightforward income-producing asset with four residential apartments and three ground-floor retail spaces. Our analysis surfaced a critical issue: the only Certificate of Occupancy on file — issued in 1970 — authorized a two-family home with one store. The building was operating with more than triple the permitted residential configuration and double the commercial units. A legal notice obtained in 2023 had been used to paper over the gap rather than resolve it, a fact that became clear only through a detailed review of the building department job file history.

We also flagged that the selling entity could not be confirmed in active state corporate records — raising the possibility that title could not legally transfer — and that an active environmental remediation site approximately 500 feet away had never been assessed for vapor intrusion impact on the subject property. Post-sale tax reassessment risk, if the building traded above current assessed value, threatened to flip the property cash-flow negative.