Custom modular ADU in Scituate, MA by Biviano Modular Builders
Coastal-zone expertise · ADUs in Scituate, MA

Custom Modular
ADUs in
Scituate, MA.

Scituate's mix of harborfront, historic district, and conservation-zoned land means ADU rules vary block to block. Mike's been building here for 40+ years — he knows which lots qualify by-right, which need special permits, and which have hidden setback issues before they cost you time.

900
Sq Ft Max
MA ADU Cap
$250
Per Square Foot
Same as Full Build
8-12
Weeks to
Move-In
40+
Years on the
South Shore
MA
Licensed · Bonded
Insured
ADUs in Scituate

A Second Home
on Your Scituate Lot.

For families in Scituate looking to bring aging parents home, add rental income, or carve out a serious home office without leaving the property, modular ADUs are the fastest, most predictable way to add livable square footage. Same factory-built quality as a full custom modular home — just compressed into 400–900 square feet.

Building in Scituate (Sand Hills, Greenbush, North Scituate, Egypt Beach, Scituate Harbor, and the rest) means working through Scituate's specific permitting, septic, and zoning rules. Mike has been doing exactly that for 40+ years. He confirms by-right eligibility, setbacks, and septic capacity during your free site walk — before plans are drawn, before contracts are signed, before you're financially committed.

Pricing is identical to our full modular homes: $250 per square foot, locked in writing before groundbreaking. A 600 sq ft ADU is approximately $150,000. A 900 sq ft ADU is approximately $225,000. Turnkey — design, permits, factory build, foundation, crane set, finish work, final inspection.

8-12
Weeks to Move-In
$250
Per Sq Ft
900
Sq Ft Max
40+
Years in Scituate
Why ADUs in Scituate with Mike
  • 40+ years of Scituate permitting experience — knows every inspector personally
  • Coastal-zone expertise — local insight that off-South-Shore builders don't have
  • Handles septic capacity, setbacks, and zoning verification before you sign
  • Single set day on your Scituate property — minimal disruption
  • Fixed $250/sqft price + timeline locked before groundbreaking

"Every Scituate ADU project starts with a site walk. Before plans, before pricing, before anything else — I want to stand on your lot and confirm what's actually buildable. That step alone saves families months of wasted design fees on projects that wouldn't have cleared Scituate's rules."

Mike Biviano
4th Generation · 40+ Years South Shore
Schedule Your Free Scituate ADU Consultation
What ADUs Are Used For

Four Ways
Scituate Families
Use ADUs.

Same shell, very different lives inside. The best ADU is the one designed around what your family actually needs — not a generic template.

01
In-Law Suite

Bring aging parents home without giving up privacy on either side. Single-floor layouts with wider doorways, walk-in showers, and zero stairs — designed for aging in place from day one.

02
Rental Income

Scituate has strong long-term rental demand for well-designed ADUs. Coastal towns command premiums on short-term platforms during summer. Many owners use rental income to recover a meaningful portion of their build cost.

03
Home Office / Studio

A real, separated workspace — not a corner of the dining room. Insulated, climate-controlled, hard-wired internet. Walk across the yard, close the door, do the work.

04
Guest House

Visiting family. College kids home for summer. Friends in town. A proper guest house means your main home stays your main home — no fold-out couches, no shared bathrooms.

05
Adult Children Returning

For families whose adult kids are saving for a first home or finishing graduate school. Privacy for both households without the cost of separate housing during a transitional season.

06
Property Value Add

A permitted, code-compliant ADU adds documented square footage and a separate income stream — both of which appraise. Well-designed ADUs typically support and grow your Scituate property's resale value.

Scituate ADU Questions

Questions About
Building an ADU in Scituate.

Scituate's ADU bylaw works in conjunction with the 2024 Massachusetts statewide reform. Most R-1 and R-2 zoned lots qualify by-right for a 900 sq ft detached ADU, provided setback and septic capacity check out. Coastal flood-zone lots may require additional FEMA-compliant elevation — Mike handles the engineering.
Modular ADUs in Scituate are priced at the same $250 per square foot as our full custom modular homes. A 600 sq ft ADU is approximately $150,000. A 900 sq ft ADU is approximately $225,000. That includes Mike handling design, permits, factory build, foundation, crane set, and finish work — turnkey.
ADUs in Scituate typically take 8–12 weeks from contract to keys. The unit is precision-built in a climate-controlled factory while Mike handles permitting and site prep on your property in parallel — including any Scituate-specific zoning or conservation review.
Mike handles all permitting, zoning verification, septic capacity confirmation, and town approvals as part of every Scituate ADU build. With 40+ years on the South Shore and personal relationships with every local inspector, he knows what each Scituate department requires before we submit.
Biviano Modular Builders — Custom modular ADU in Scituate, MA
Free Consultation · Scituate ADU

Build Your
Scituate
ADU.

8 consultation slots available per month. No obligation — just a 60-minute conversation with Mike, a site walk on your Scituate property, and a full cost breakdown.

Call Mike Directly
Email
Begin Your Scituate ADU Build
Mike will respond within one business day.

No spam. No obligation. Mike typically responds same day.

ADUs Built Across the South Shore