ADACON UK

    Can My Parents Live Permanently in a Garden Annexe?

    It can be possible, but it is not automatic. Permanent occupation depends on planning consent for that use, Building Regulations and how the annexe relates to your house. We make no blanket claim that a standard layout is approved for permanent living.

    Adacon Technical Team · Published

    Planning use

    Full-time occupation by a family member is usually treated as ancillary to the main house, and consent may include conditions tying the annexe to the household.

    Accessibility

    Think ahead: step-free entry, an accessible shower/WC, turning space and wider doors are easier to design in from the start.

    • Accessible Annexe layout available
    • Tell us specific mobility needs so the layout can be checked

    Comfort all year

    Walls, floor and roof are insulated and glazing is double glazed. Heating and ventilation are confirmed in the specification.

    Worth knowing: Planning, Building Regulations and council tax depend on your site and how the annexe will be used. Confirm with your local planning authority and building control before ordering.

    Where to go next

    P300 / P400 / P600 range

    P300 unit
    2.9m × 2.2m externally; approximately 2.7m × 2.0m usable internally
    P400 unit
    3.9m × 2.2m externally; approximately 3.7m × 2.0m usable internally
    P600 unit
    5.9m × 2.2m externally; approximately 5.7m × 2.0m usable internally
    Configuration
    Mix P300, P400 and P600 units to create tailored footprints and shapes
    Unit height
    2.40m external / 2.16m internal
    Storeys
    Up to two storeys, subject to final project design
    Delivery
    UK mainland and Northern Ireland — transport quoted separately

    Adacon modular buildings use P300, P400 and P600 units with external lengths of 2.9m, 3.9m and 5.9m, a common 2.2m width and 2.40m external / 2.16m internal height. The sizes can be combined to create more tailored floor areas and building shapes, joined side by side or stacked to two storeys subject to the final project design.

    Design your modular building online

    Set the layout, windows, doors and fit-out and see a live estimate as you go.

    Open the modular builder

    More guides

    Get a price for Modular Buildings

    Tell us what you need and we'll come back with pricing and lead times — usually within one working day.

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    Enquiring about: Modular Buildings

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