Ellery ADU Studio in Maine

Ellery ADU Studio in Maine

Ellery ADU Studio designs, permits, and builds accessory dwelling units across Maine under a single contract and a single written price. Since 2015, our studio has completed more than 900 ADUs through our Ellery Adu Studio services, every one with a documented photo record and a permit set that matches the finished structure. Maine homeowners who work with Ellery get the full weight of the Haven family behind the project: a published five-clause standard covering price, scheduling, crew verification, evidence, and a no-upsell rule that applies from first measure to final walkthrough.

Why Maine Homeowners Choose Ellery ADU Studio

Most ADU projects stall in the gap between the designer and the builder. The drawings say one thing, the crew builds another, and the homeowner is left holding two contracts and no clear answer about who owns the problem. Ellery ADU Studio was founded in 2015 to close that gap. The permit set is the core product here, not an afterthought: the drawings, the permitting, and the construction sit inside one agreement, so there is no room for either party to point at the other. That single-contract model carries a specific promise for Maine clients. If the finished ADU is not built to the permitted drawings, Ellery makes it right under the 365-Day Done Right Promise, in writing, before the project starts. We also bring real fluency with prefab and modular systems, including Abodu, Cover, Dvele, Mighty Buildings, Boxabl, Plant Prefab, Tuff Shed, and James Hardie, specified and coordinated within that same contract. For a homeowner in a Maine metro or inner suburb who bought between 2015 and 2025, that means one accountable team from site prep through final inspection.

Backed by the Haven Family

Ellery ADU Studio operates as an independently owned and operated member of the Haven family, bound by the Haven Standard: a written price before any work starts, a real arrival window with a named person, crews that are licensed and background-checked with the license number published, photographic evidence of what was found and done on every visit, and no upsell at the door. Every Ellery project across Maine carries that standard, and every estimate comes as a written document under Haven Standard Clause 1. If you already hold a written estimate from another builder, we will review it as a free second opinion. A live person answers calls 24/7, and our crews arrive in uniform with identification. The price you see before work begins is the price you pay when the work is complete.

Written by the team at Ellery ADU Studio, serving Maine homeowners with design-build ADU services since 2015.