Garage Roof

Garage Roof

Do I Need Permission - Ask An Expert

Our garage roof is needing replaced and our builder has suggested changing it from a flat roof to a pitched tiled roof. The garage adjoins the side of the house,
and the roof will slope from the shared wall down to the level of the current garage roof. Will we will need a building warrant or planning permission to carry out these works?

Alternatively, we could replace with a flat roof, but ideally we would add some height to this as the roof height is currently a little low. We’ve been advised that this wouldn’t require a warrant, but probably best to confirm this option too.



Question Posted By – Derek Hanley In Area – West Central Scotland
This question has been asked in a Scottish region any response below will be specific to Scottish Planning Permission or Building Regulation advice.

  1. Do I Need PermissionDo I Need Permission06-03-2017

    Hi Derek

    For planning permission as long as you don’t exceed the permitted development criteria you wouldn’t require planning permission, this would be,

    Located to the rear of the property. Behind the front elevation of your property.
    The overall buildng does NOT exceed 4 metres in height. (3 metres to eaves)
    Any part of the building within 1 metre of the boundary does NOT exceed 2.5 metres in height.
    Is NOT in a conservation area.
    Your garage is NOT within the boundary of a listed building.
    Not part of a flat, apartment, or tenement.

    For Buildng Warrant if the original garage is under 30 square metres in floor area and your are not increasing the floor area beyond this you would not require a buildng Warrant for the roof alteration.

    Hope that helps.

    Thanks for visiting Do I Need Permission.

    • Derek HanleyDerek Hanley06-04-2017

      That’s great – thanks! Will probably go for the pitched roof option in this case!

  2. Derek HanleyDerek Hanley06-07-2017

    Just a quick update. I finally received a reply from the council regarding this, and it looks like I will need a warrant for the pitched roof. I’ve asked them if we will need the same for a replacement flat roof.

  3. Hi Derek.

    Is the garage within 1 metre of your boundary? If so and as adjoined to your property you would require a Building Warrant.

    Does the garage join onto your neighbours garage?

    Thanks for using Do I Need Permission.

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