Serving Palm Beach, Martin & Saint Lucie County
    (561) 557-6513
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    Accessory Building & ADU Contractors in Palm Beach, Martin & Saint Lucie County

    An accessory building is a detached structure on a residential property — an ADU (accessory dwelling unit), guest cottage, pool house, detached garage, workshop, or home office. G & M Palm Beach designs, permits, and builds custom accessory buildings across Palm Beach, Martin, and Saint Lucie County, fully code-compliant for Florida hurricane requirements.

    What's Included

    • Site evaluation
    • HOA and county permitting
    • Foundation, framing, roofing, electrical, plumbing, HVAC
    • Hurricane impact windows
    • Full interior and exterior finishing
    • Optional kitchenettes and bathrooms
    • Design integration with main-house aesthetics

    Our Process

    1
    Free in-home consultation
    2
    Design & estimate
    3
    Contract & permits
    4
    Build with our in-house crew
    5
    Final walk-through

    How Much Does It Cost?

    Typically $180–$450 per square foot. A 600 sq ft ADU with a bathroom runs roughly $145,000–$280,000.

    How Long Does It Take?

    4–7 months from contract to certificate of occupancy.

    Why Choose G & M Palm Beach

    • In-house crews, not subcontracted out
    • Local code and HOA expertise in Palm Beach, Martin, and Saint Lucie County
    • Built on the reputation of sister brand Outdoor Kitchens By Guy
    • Free in-home consultations
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