Conservation commission approves mitigation plan for unpermitted Willow Street patio; denies COC and issues violation for unpermitted Cranberry Lane deck

The Town of Yarmouth Conservation Commission voted July 16 to accept an after‑the‑fact mitigation proposal for a patio at 689 Willow Street and to require specific planting and monitoring conditions. Bob Perry of Cape Con Engineering presented the application and homeowner Lisa Garcia described the patio as an honest mistake installed five to six years earlier. Perry said the patio sits about 25 feet from a bordering vegetated wetland and the proposal includes concentrated mitigation in the 25–35 ft and 35–50 ft bands with an overall mitigation ratio above regulatory minimums.

The commission approved the mitigation and special conditions after a discussion of permeable versus impervious patio surfacing and the amount and placement of plantings; the recorded vote on this application was 5 in favor, 2 opposed and 1 abstention.

On a separate matter, the commission reviewed a Certificate of Compliance request for 185 Cranberry Lane (Yiping Dang). Staff and consultants identified a roughly 300‑sq‑ft deck extension above the marsh that does not appear to have been permitted. The commission debated options including ordering immediate removal or allowing the owner to file a formal after‑the‑fact Notice of Intent (NOI). A motion that would have simply given the applicant time to file an NOI failed. The commission then denied the COC request, and subsequently voted to issue a violation notice for the unpermitted portion of the deck, giving the owner the choice to remove the deck or file an after‑the‑fact NOI by the deadline specified in the violation notice (the commission set the deadline and related sequencing; staff will circulate exact dates in written orders).

Why it matters: after‑the‑fact filings and enforcement votes are routine but noteworthy because they define the commission’s approach to balancing correction and remediation against permitting enforcement. The commission required clear mitigation and monitoring conditions for the Willow Street case and used the enforcement process for Cranberry Lane to give the owner a formal compliance path while preserving the commission’s authority to require removal if the owner fails to pursue the after‑the‑fact route.