Last updated: September 24, 2026
What affects the price
Building an ADU is a major project, and the final bill depends on a few key things. Site prep is a big factor; if your land is sloped or needs extensive utility connections, costs go up. The materials you choose—from siding to kitchen finishes—also change the math significantly. Whether you’re building a detached unit or converting an existing garage shifts the permit requirements and structural work needed. We provide exact pricing confirmed free on the call.
About this service
This is a standalone structure built on your property, separate from your main house. People usually build these when they have extra yard space and want to create a private living area for family members or a home office. Factors like site accessibility, utility connections, and foundation type move the price up or down. Exact pricing confirmed free on the call.
Frequently asked in Lynn
What are the rules for accessory dwelling units in Massachusetts?
Are modular accessory dwelling units a good option?
How do I get an estimate for an ADU in Lynn?
Getting an estimate for an ADU in Lynn is simple. You start by making a quick phone call to us. We'll arrange for a licensed, insured pro to visit your property. They'll assess your site and discuss your project needs. This initial consultation is free and comes with no obligation. You'll receive a detailed quote based on the specifics of your situation.
Where can I find accessory dwelling unit builders near me?
Can I build an accessory dwelling unit for rent in Lynn?
What is the typical permit cost for an accessory dwelling unit?
What does ADU building involve in Lynn?
Also serving nearby: Boston · Cambridge · Quincy · Newton · Lawrence
More on this: HUD ADU resources — ADU policy and financing research.
Service area details
Serving all of Lynn — population 101,241; about 9,427 residents per square mile across 10.7 sq mi. ZIP codes covered include 01901, 01902, 01903, 01904, 01905, 01910.
Neighborhoods served in Lynn: Swampscott, Saugus, Revere, Wakefield, Melrose — and every surrounding area.
Areas we serve
Browse by state, then city.
