Frequently Asked Questions
How big can an ADU be in Massachusetts?
In most towns, ADUs can be up to 900 square feet or 50% of the size of your main home, whichever is smaller.
Do I need a special permit to build an ADU?
No, statewide by-right; some site plan review
How fast can I get plans?
Instant download for Tier 1
Will these plans pass in my town?
Designed to meet state law; local adjustments may be needed
Do you include septic approval?
We include Title 5 notes; BOH review required
Why is this cheaper than hiring an architect?
We reuse details and streamline design
What foundation options are available?
In most towns, ADUs can be up to 900 square feet or 50% of the size of your main home, whichever is smaller.
Still have questions?
We’re here to help. Contact us for a free consultation or request Tier 3 pricing.