Accessory dwelling unit builders near me

Looking for accessory dwelling unit builders near me in Boston, MA? Call AccessoryDwellingUnit Experts for a contact a provider — no obligation. Licensed adu builders serve Boston and the surrounding area, and you'll get straight answers on timing and what affects the price.

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

Finding local builders means looking for teams that specialize in compact, efficient residential construction within your region. These professionals know the specific building codes for your city and can help you navigate site constraints like lot setbacks and utility lines. You need a local partner when you are ready to break ground and want a team that understands how to manage logistics and inspections in your immediate area to keep your project moving forward smoothly.

Frequently asked in Boston

What are the disadvantages of ADUs in Boston?

Disadvantages can include increased utility costs and potential parking challenges, especially in densely populated areas like Beacon Hill. You might also face longer permitting times due to city review processes. However, these are often manageable with proper planning and professional guidance.

How much does an ADU cost in Massachusetts?

What are the rules for ADUs in Boston?

Boston has specific regulations regarding ADU size, placement, and design to fit within existing neighborhoods. These rules are in place to ensure they complement the city's character. A local specialist can walk you through the current requirements for your property.

Is an ADU allowed in Maryland?

This question is for Baltimore, not Boston. However, the general answer is that many states and cities have specific rules. It's crucial to check local ordinances.

What are the rules for ADUs in California?

This question is for Portland, not Boston. California has state-level ADU laws that often supersede local ones, making them generally accessible. Rules can vary by city.

This question is for Portland, not Boston. While some regions offer incentives for ADUs, specific grant programs like this are typically state or locally funded. Investigating local programs is always a good idea.

Also serving nearby: Quincy · Cambridge · Lynn · Newton · Brockton

All cities in Massachusetts →

More on this: HUD ADU resources — ADU policy and financing research.

Service area details

653,833residents

13,525per sq mile

8ZIP codes served

Serving all of Boston — population 653,833; about 13,525 residents per square mile across 48.3 sq mi. ZIP codes covered include 02108, 02109, 02110, 02111, 02112, 02113, 02114, 02115.

Neighborhoods served in Boston: Back Bay, Beacon Hill, North End, South End, Dorchester, Jamaica Plain — and every surrounding area.