Do you need a CAMA permit for a deck?

The question is not whether your deck is big enough to interest CAMA — it is whether your lot sits inside an Area of Environmental Concern. If it does, the size of the deck stops mattering entirely: construction there is development, development needs permit review, and the deck is not exempt from its own lot.

The details

Here is the definition doing the work. CAMA defines development broadly: under CAMA, development means any type of construction, associated land clearing, or land alteration within an Area of Environmental Concern — so deck construction along the oceanfront or estuarine shoreline is development requiring permit review. Read that slowly if you were told otherwise by someone with a saw: no square footage, no height above grade, no "it's just a platform." The definition attaches to the land, and anything built on that land inherits it.

The program behind the definition is bigger than most owners assume and more local than they fear. 20-county coastal CAMA program: the state Division of Coastal Management, under the Coastal Resources Commission and in cooperation with local governments across the twenty-county coastal area, administers CAMA review in the AECs — and each county has a Local Permit Officer whose job is helping residents through exactly these rules. The acronym is statewide; the desk you walk up to is in your county.

Which permit depends on the scope, and the state names the three instruments. CAMA minor, major, or general permits: depending on the development, a minor, major, or general CAMA permit may be necessary before work commences. A residential deck is almost always a minor permit — the locally reviewed, modest-fee instrument — which is why the question "do I need a permit" for a waterfront deck usually resolves into "a minor one, from the Local Permit Officer, before the first post hole."

The failure mode is not denial; it is sequence. CAMA review happens before the work begins, not after the county building permit arrives, not after the lumber is delivered, and not as a retroactive cure for footings already in the ground. An unpermitted structure in an AEC is a problem with no cheap solution, and every experienced builder on this coast asks the CAMA question before quoting a waterfront deck for exactly that reason.

If the lot touches ocean, sound, or canal, assume the answer is yes and let the Local Permit Officer confirm it in one conversation — the assumption costs a phone call, and being wrong costs the deck.