Lewis County · Centralia
ADU rules in Centralia, Washington are more permissive than most of the region's. The city allows two accessory dwelling units on a lot in six residential zones and does not require the owner to live on site. Solis installs the drywall scope from the approved plans.
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Centralia allows up to two accessory dwelling units per lot in the R-5A, R:2, R:4, R:8, R:15 and R:20 zones, and the code states that owner-occupancy is not required. That combination opens the garage and lower-level conversion to owners who do not intend to live in the new unit themselves. Ordinance 2539 sections 12 to 17 (2023) amended Ordinance 2445 (2020). The approved plans and the local authority determine the requirement; Solis scopes the listed drywall work and coordinates the relevant handoff.
Centralia caps an accessory dwelling structure at 30 feet, against 24 feet for other accessory buildings, and requires one parking space per ADU except within half a mile of a transit stop. Those two numbers decide how much building fits on a lot and where a driveway has to go, which is usually settled before anyone prices drywall.
Access, occupied-room protection, substrate condition, ceiling height, and the requested finish all change the work sequence in Centralia, Washington. Send photos, dimensions, and the drawings or finish notes already available so Solis can separate visible drywall work from questions for the designer, inspector, or another specialist. For an ADU, the approved wall and ceiling details control fire, sound, and air-sealing questions; Solis prices the listed drywall work without promising a permit or inspection result.
These local conditions help us ask better questions before we price the drywall scope.
Centralia two-ADU allowance
Centralia permits up to two accessory dwelling units per lot in R-5A, R:2, R:4, R:8, R:15 and R:20, and does not require owner-occupancy. Ordinance 2539 amended Ordinance 2445.
Centralia ADU height and parking
An ADU structure is capped at 30 feet against 24 feet for other accessory buildings, with one parking space required except near transit. Both shape the site before drywall is priced.
Centralia ADU zones
Two per lot in six zones
Centralia permits up to two accessory dwelling units per lot in R-5A, R:2, R:4, R:8, R:15 and R:20, and does not require owner-occupancy. Ordinance 2539 amended Ordinance 2445.
Centralia ADU limits
30 feet, one space
An ADU structure is capped at 30 feet against 24 feet for other accessory buildings, with one parking space required except near transit. Both shape the site before drywall is priced.
Send wide and close photos, room dimensions, ceiling height, access notes, and the finish or project documents you have. Those details help us identify the practical next step before a site review.
Design approvals, permit decisions, hazardous-material testing or abatement, structural engineering, restoration drying, and other specialist work remain separate when the project requires them. We identify that boundary before pricing the drywall scope.
