Planning deck/porch work in Mattapan? Here is what recent Mattapan homeowners actually declared on their building permits — real public-record values, not quotes.
Figures are owner-declared project values from public Mattapan building-permit records — a useful benchmark, not a substitute for a contractor quote.
MassPermits helps Mattapan contractors find homeowners who just pulled permits — and helps homeowners understand local project costs.
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Across 8 recent Mattapan building permits that declared a value, the median deck/porch project value is $13,400, with a typical range of $9,200 to $22,400. 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 Mattapan building department — public records MassPermits aggregates, not estimates.