Ellery ADU Studio in Massachusetts

Ellery ADU Studio in Massachusetts

Our Ellery Adu Studio services include designing, permitting, and building accessory dwelling units across Massachusetts under one contract, one written price, and one accountable team. Since 2015, we’ve delivered more than 900 ADUs, garage conversions, and interior conversions, every one of them with a documented photo record and a price that was on paper before the first tool came out of the truck. Massachusetts homeowners get the same thing: a permit set treated as the core product, construction that matches it, and the full Haven family standing behind the work.

Why Massachusetts Homeowners Choose Ellery ADU Studio

Most ADU projects in Massachusetts stall in the gap between the designer and the builder. The designer says the drawings were buildable. The builder says the drawings were wrong. The homeowner pays for the argument. Ellery ADU Studio exists so that argument cannot happen: the drawings, the permit set, and the construction are a single contract at a single written price. That’s Haven Standard Clause 1, and it’s not negotiable. While our focus is Massachusetts, we bring the same expertise you’d expect from Ellery ADU Studio in Michigan - ADU specialists - including real fluency with prefab and modular systems: Abodu, Cover, Dvele, Mighty Buildings, Boxabl, Plant Prefab, Tuff Shed, and James Hardie. When one of those systems fits a Massachusetts lot better than stick-built, we specify it and coordinate it inside the same contract, so you’re never handed off to a third party. Every project since 2015 has closed with a documented photo record of the finished work, and every project carries our 365-Day Done Right Promise: if the finished ADU is not built to the permitted drawings, we make it right, in writing, before the project starts. We also offer a free second opinion on any written ADU estimate you already have in hand.

Backed by the Haven Family

Haven was formed in 1998 to buy small home-service companies that were doing the work properly before someone else bought them and stopped. The bet was simple: leave the brand, the crews, and the name alone, and standardize the one thing customers actually complain about, which is not knowing. Not knowing the price before the van arrives, not knowing who is coming into the house, not knowing what was found. The Haven Standard is five clauses: the price in writing before work starts, a real arrival window with a named technician, crews that are licensed, insured and background-checked with the license number published, photographic evidence of what was found on every visit, and no upsell at the door. Every Ellery ADU Studio job across Massachusetts is held to all five. A haven is somewhere nothing bad is going to happen to you. That’s the condition you’re buying back when you call us.

Written by the team at Ellery ADU Studio, serving Massachusetts homeowners since 2015.