[Massplanners] [EXTERNAL] ADUs and Gross Floor Area

[Matthew Benoit]

Leeann,

Not sure how helpful this is, but 2021 IRC Ch. R305 has building code height information.


Matthew C. Benoit, Notary Public
Director of Community Development
Town of Douglas
29 Depot Street
Douglas MA 01516
508-476-4000  x 206
mbenoit at douglas-ma.gov
Town Hall Hours:
Monday-Wednesday-Thursday:  8:30am - 4:00pm
Tuesday: 8:30am-6:00pm
Friday: 8:30am-12:00pm
________________________________
From: MassPlanners <massplanners-bounces at masscptc.org> on behalf of Leeann Bradley via MassPlanners <massplanners at masscptc.org>
Sent: Tuesday, February 11, 2025 3:03 PM
To: massplanners at masscptc.org <massplanners at masscptc.org>
Subject: [EXTERNAL][Massplanners] ADUs and Gross Floor Area


Good Afternoon,



I have a question regarding Gross Floor Area (GFA) on the height of basements in a by-right ADU.  If a basement height requirement for a habitable room, per the state building code, is 7’6” and plans for an ADU Site Plan Review are received with a basement height of 7’4”, is the basement area not considered part of the Gross Floor Area, i.e., the 900s.f. limit for a by-right ADU?   If this is the case, we may be seeing ADU’s amounting to 1,800s.f. with basements being illegally constructed.  Thank you.





Leeann Bradley

Director of Planning and Community Development

Town Hall Annex

20 Center Street

Middleborough, MA 02346

508-946-2425 ext. 1150



“Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has”.

Margaret Mead

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PLEASE NOTE NEW EMAIL ADDRESS:  BradleyL at middleboroughma.gov<mailto:BradleyL at middleboroughma.gov>



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