Your MA ADU — Build, buy & invest in ADUs across Massachusetts

Built, brokered & invested — across Massachusetts

Your guide to building, buying & investing in ADUs across Massachusetts.

Real advice from a licensed builder and investor who's actually doing this — not a lead form selling your info to the highest bidder.

Book a free consultation Follow the build →

Licensed CSL Licensed GC Real estate broker Investor since 2013

Who I work with

Wherever you're starting from, there's a path to an ADU.

Three ways people use ADUs in Massachusetts — pick the one that sounds like you and let's run your numbers.

For current homeowners

Add space, income, or family

Whether it's rental income or housing a relative, I'll walk you through cost, feasibility, and permitting before you spend a dollar — and tell you honestly whether it's worth it.

Get started

For investors

One of the best small-MF plays right now

I'm commonly seeing 10–20% ROI on cash invested on ADU conversions and builds. As a broker and investor myself, I'll model the deal with you — not pitch you.

Run the numbers

A buyer touring a property with ADU potential

For buyers

Buy a property that pays you back

Looking for a home with an ADU to offset your mortgage? I identify prime ADU-conversion properties, know the local zoning, and bring a vetted referral network to your project.

Start your search

Tyler — licensed builder, broker, and investor

14units owned

The difference you can't fake

Hi, I'm Tyler — and you're talking to a real builder, not a form.

Most "ADU" sites in Massachusetts are lead funnels: a form, a phone number, and a wall of AI-generated cottages. There's no person behind them — they just sell your info to whoever's buying that week.

I'm the opposite of that. I've been a real estate investor since 2013 and own a 14-unit portfolio. I'm a licensed Construction Supervisor and general contractor through LVL Builders, and a licensed real estate broker through Peak Realty Advisors. That means I can advise you, build it, or help you buy the right property — and because I wear all three hats, I'll tell you the truth when an ADU doesn't pencil.

Right now I'm documenting a current ADU build from start to finish — the real costs, the permitting details, and the snags most people gloss over. That's the kind of transparency you won't get from a faceless funnel.

CSL #_____ GC — LVL Builders Broker — Peak Realty 12+ yrs investing

How it works

One honest path — from "is this even possible?" to keys.

No pressure, no black box. You'll always know the real numbers and exactly what the next step is.

STEP 01

Advise

A free consult to see if an ADU fits your property, your goals, and the zoning. If it doesn't make sense, I'll say so.

Your MA ADU

STEP 02

Estimate

Real feasibility: cost to build, rent comps, ROI, and the permitting timeline for your specific town.

Your MA ADU

STEP 03

Build

If you want to build, my licensed GC company handles it end to end — permits, construction, inspections, C of O.

LVL Builders

STEP 04

Or acquire

Rather buy a property primed for an ADU? My brokerage finds it, runs the deal, and lines up the conversion.

Peak Realty Advisors

The honest-broker promise: Because I'm also a broker and investor, I have no reason to talk you into a build that won't pay off. I'll run your numbers straight — and if an ADU isn't right for you, I'll tell you, or point you to someone who fits.

Follow along · live project

Watch a real MA ADU come together — stage by stage.

The part homeowners actually worry about isn't the finished unit — it's the path to get there. So I'm documenting a current build in plain terms: what each phase involves and where things stand. No fluff, just the real process.

Complete

Feasibility & design

Confirming the property works and shaping the unit layout.

Complete

Plans & engineering

Drawings finalized and prepped for the town's review.

In progress now

Permitting

Working through the town's by-right ADU review.

Up next

Construction

The ground-up build, start to finish.

Up next

Completion

Final inspections, certificate of occupancy, and move-in ready.

See the full project →

The existing garage today, before conversion — The garage today

Becoming

Rendering of the proposed two-bedroom ADU — Proposed ADU — rendering (final design may change)

Watch & learn

Straight talk on ADUs — on camera, from someone who builds them.

Real explanations on camera — not stock footage, not AI voiceovers. The latest from the channel.

By-rightstatewide since Feb 2025single-family zones, no special permit

900 sq ftmax ADU sizeor 50% of the main home, whichever is smaller

$80k–$400k+typical project rangeconversion to detached new build

10–20%ROI I commonly seeon cash invested in conversions

Figures reflect current MA law and typical local market ranges. Every property is different — book a consult for numbers specific to yours.

Local ADU rules by town

State law set the floor. Your town fills in the details.

ADUs are by-right statewide, but setbacks, parking, and design rules still vary locally. Find your town's rundown:

Malden Medford Somerville Everett Revere Melrose Arlington Cambridge Quincy Newton Waltham Lynn All Massachusetts towns →

Common questions

ADUs in Massachusetts, answered honestly.

Can I build an ADU in my town?

In almost all cases, yes. Since February 2, 2025, the Affordable Homes Act requires every Massachusetts city and town (Boston runs its own zoning) to allow at least one ADU by-right on single-family lots — no special permit, variance, or public hearing required if your project meets the state standards.

How big can an ADU be?

Up to 900 square feet, or 50% of your main home's gross floor area — whichever is smaller. It needs its own kitchen, bath, sleeping area, and a separate entrance. It can be internal (like a basement), attached as an addition, or a detached backyard structure.

What does an ADU actually cost to build?

Most MA projects land between roughly $80,000 for a straightforward internal conversion and $400,000+ for a larger detached new build, often $250–$500+ per square foot given local labor and energy-code requirements. I'll give you a real estimate for your specific property rather than a generic number.

Do I have to live on the property?

No. The state law prohibits towns from imposing owner-occupancy mandates on a by-right ADU, which is part of what makes them attractive to investors. Towns can still set reasonable rules around things like short-term rentals, so it's worth checking your local bylaw.

Will you tell me if an ADU isn't worth it for me?

Yes — that's the whole point. Because I'm a broker and investor, not just a builder, I have no reason to push a project that won't pay off. If the numbers don't work for your property, I'll tell you straight and we'll look at other options.

Let's talk

Get a free, no-pressure ADU consultation.

Tell me about your property and your goals. I'll give you the honest read — whether you build with me, buy through me, or just leave with a clearer picture.

Call (617) 410-6623 Email me