Town report through 2026-10-01. Yarmouth gives us its permits as a dated report, not a live feed: the figures here cover the town’s own report up to 2026-10-01 and change only when the next report is added.
What Yarmouth owners actually declared on 22 recent battery storage building permits in our dataset — public-record values, not quotes.
Owner-declared values from public building-permit records, residential-scale projects only (commercial and out-of-scale outliers excluded) — a benchmark, not a substitute for a contractor quote.
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Across 22 recent Yarmouth building permits that declared a value, the median battery storage project value is $26,840, with a typical range of $19,198 to $43,836. These are owner-declared values from public permit records, not quotes.
Every figure is the declared project value on a real building permit filed with the Yarmouth building department — public records MassPermits aggregates, not estimates.