Maximize Your Property's Living Potential

Build Additional Dwelling Units in Hollis

You can expand your property's capacity with a custom additional dwelling unit that meets all local building codes and zoning requirements in Hollis. The sound of careful measurements and precise planning fills each project site as our team works with you to design a secondary living space that complements your existing home. Michael G. Gower Construction brings decades of experience to ADU projects throughout Hollis, ensuring your new unit maximizes both functionality and property value.


Your ADU project begins with a thorough site assessment and design consultation where we review your goals, budget, and local permit requirements. We handle everything from foundation work and framing to electrical systems, plumbing, and final finishes, creating a fully independent living space that can serve as rental income, family housing, or a home office. Each unit includes full kitchen facilities, bathroom access, and separate utilities to ensure complete independence from your main residence.



Schedule your ADU consultation today to discuss how an additional dwelling unit can work for your Hollis property.

What to Expect When You Book

Your ADU construction project follows a structured timeline that ensures quality results and code compliance at every stage.


We coordinate all permit applications with Hollis building officials and work closely with local inspectors throughout the construction process.


Here's what you can expect during your additional dwelling unit construction:

Key Benefits of This Service

Additional dwelling units provide multiple advantages for Hollis homeowners, from increased rental income potential to flexible family housing options that adapt to changing needs over time.

Train track with wheels on top of a road.

How long does ADU construction typically take?
Most additional dwelling unit projects in Hollis take 4-6 months from permit approval to final inspection. Weather conditions and custom features can affect this timeline.

A black and white train icon.

What size restrictions apply to ADUs in Hollis?
ADU size limits depend on your lot size and existing home square footage. We review all local zoning requirements during your initial consultation.

Silhouette of a bridge over a road. Two wheels are visible on the bridge.

Do you handle the permit application process?

Yes, we manage all permit applications and coordinate with Hollis building officials throughout the approval process. This includes submitting architectural plans and scheduling required inspections.

Black silhouette of a train on tracks.

Can an ADU include a full kitchen and bathroom?
Absolutely. We install complete kitchen facilities with full appliances and independent bathroom systems including shower or tub options.

Black and white illustration of a bridge over a road. The bridge has two train wheels on it.

What foundation options work best for ADUs?
Foundation choice depends on your site conditions and frost line requirements. We typically use concrete slab or full basement foundations with proper waterproofing systems.

our ADU investment adds significant value to your property while providing flexible housing solutions that serve your family's evolving needs. Contact us today to explore how an additional dwelling unit can work for your specific situation.