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planning required for lean to workshop attached to detached garage?

Discussion in 'Building Regulations and Planning Permission' started by starbuckhouse, 22 Apr 2020.

  1. starbuckhouse

    starbuckhouse

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    I have a 9m x 6m detached garage that is 7 m away from the side of my house. I would like to build a wooden shed/workshop along one side of the garage, (furthest from the house) I would like it to be 9m x 3m, concrete floor and timber sides with roofing sheets. it will be attached to the garage wall but a separate building with its own access.
    The new workshop will be just over 2 m from the property boundary. 2.4m at the highest point and approx. 2m at the eves.

    Do I need planning or building regs to do this?
    thanks for any info offered workshop.jpg
     
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  3. IT Minion

    IT Minion

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    If it's attached then it's the same building as your garage. In which case you're modifying it and the whole footprint is relevant.

    If I'm right about that then it's going to be well over 30m^2 so it would need building regs sign off.

    The next question is if it can be classed as an outbuilding under permitted development. That has a whole load of questions to check off.
     
  4. sxturbo

    sxturbo

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    Doubtful,

    As it is front at the front of the property it will change the look of the property, plus the size of it one could argue it's for business use.

    Your best of speaking to local planners
     
  5. DevilDamo

    DevilDamo

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    This ‘shed’ would normally be classed as an outbuilding under Class E. However, I’m not sure how the rules differ for an outbuilding that is to be attached. The guidance doesn’t appear to clarify that although I’m sure I’ve read it somewhere before. Your best bet would be to make it physically separate, even if it’s a 300mm gap. That way you can avoid the need for Planning and Building
     
  6. 300mm gap :!:
     
  7. starbuckhouse

    starbuckhouse

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    thanks for your replies,
    I could separate it from the garage, I just thought it would be one less wall to build, moving it across does take it closer to the boundary, if the new building was a timber frame clad in metal roofing sheets, is that considered non flammable in their definition? if it ends up less than 2 m from boundary
     
  8. The thing with leaving a gap as others suggest is that ,depending on the width ,it can create a problem with access for maintenance and collecting rubbish/leaves/whatever. I can see why you would want to make it attached. You could always apply for the necessary permissions to build it how you really want.
     
  9. starbuckhouse

    starbuckhouse

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    What if I applied for planning permission to build it 'attached' to the garage, as I wanted initially, would I still require building control? if it was far enough from boundary and less than 30 sqm etc, only asking as it might alter how I was going to construct it if building control is involved, e.g. roof pitch, foundation type depth.
     
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  11. Yes, I agree, I think I would want to check with Building Control on this situation starbuckhouse before advising on the building construction details.
     
  12. LukeB123

    LukeB123

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    Looks to me as it to the side of the property, not forward of it from the drawing - also the O.P. said its to the side.

    I doubt it makes a difference in this case. I think the standard PD rules for outbuildings apply - it doesnt matter if you attach another outbuilding on, then another then another etc. The PD regs say the cumulitive area of any buildings cannot exceed 50% of the curtilage.

    @starbuckhouse To me its PD, subject to you meeting the standard conditions for outbuildings (height and area). I would not be leaving a gap, I see no point. The only bit of clarity we could do with is where is the principal elevation (the front) of the house.
     
  13. - and the bldg. regs situation :!:
     
  14. DevilDamo

    DevilDamo

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    If you're applying the PD rules in relation to the cumulative area, then you would also need to apply the rest of the PD rules for outbuildings. That being said, if the workshop is to be physically attached to an existing outbuilding, then the existing would also need to comply, i.e. 2.5m to the eaves and an overall height of 3m (as I don't think the LPA would consider the resulting roof design as a dual pitched/gable roof).
     
  15. LukeB123

    LukeB123

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    That's literally what I said in the post you quoted "I think the standard PD rules for outbuildings apply"

    As I said, it doesn't matter what you attach to it or extend / add on to it, the whole thing is an outbuilding regardless of how it's joined or segregated and judged against the PD regs.

    The overall height is restricted to 4m not 3m in the regs, unless it's close to the boundary, then it's 2.5m. I haven't gone into the full details and told the O.P. to check as the drawings obviously not to scale.

     
  16. starbuckhouse

    starbuckhouse

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    The original garage is 4m tall, it had Planning and BR on it when it was built. workshop.jpg
     
  17. LukeB123

    LukeB123

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    It's likely if you had to have planning for it originally (not going into the reason's why), generally, you'll have to have planning if you extend or alter it.

    Also if that new red section you're proposing goes within 2m of the boundary (and your attached to the previous garage) you'll need planning permission again.
     
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