Do I Need Residential Planning Permission?

Use the Gabriel Quick Check Planning Permission Tool™ to find out!

The information provided below is a list of those extensions which, in most cases, may be added to a dwelling without the need for planning permission from the Council as the Local Planning Authority. However, the complexities of the planning system are such that it is not possible to provide a definitive list of the works that may be undertaken to a dwelling without the benefit of planning permission.

The tool below will provide you with an idea of whether or not permission is required for your proposal.

You are invited to read the information, to tick the relevant boxes and provide your details. Upon submission of this information, we will assess your proposal and contact you within two working days.

 

Permitted Development Planning Questions

General Permitted Development Order (2015)

Schedule 2, Part 1 – Development within the curtilage of a dwellinghouse

Class A – the enlargement, improvement or other alteration of a dwellinghouse

    1. How old is the house?

    2. Following the erection of the extension, would more than 50% of the total garden area of the property (front and rear gardens), other than the area of the original dwelling, be built on?
    YesNo

    3. Would the extension be higher than the highest part of the existing dwelling?
    YesNo

    4. Would the eaves of the extension be higher than the eaves of the existing dwelling?
    YesNo

    5. Would any part of the extension project forward of the main front wall of the original dwelling, or project forward of the side wall of the original dwelling, towards a road?
    YesNo

    6. Would the extension be deeper than 3m from the original rear wall of the dwelling for a terraced or semi- detached dwelling, or would it be deeper than 4m from the original rear wall of a detached dwelling?
    YesNo

    7. Would the extension be taller than 4m?
    YesNo

    8. Would the extension have more than one storey and be more than 3m deep from the original rear wall of the dwelling, or be within 7m of the garden boundary opposite the rear wall of the dwelling?
    YesNo

    9. Would the extension be within 2m of the boundary of the property and have an eaves height of over 3m?
    YesNo

    10. Would the extension be to the side of the original side wall of the dwelling and be higher than 4m, be more than single storey or be greater than half the width of the original dwelling?
    YesNo

    11. Would the extension include a verandah, a balcony or a raised platform?
    YesNo

    12. Is the dwelling a listed building or in a conservation area?
    YesNo

    Your Contact Details




    Advice: Planning Permission is required
    Advice: Planning Permission may be required
    Advice: We suggest you obtain a Certificate of Lawfulness

    Class B – Additions to the roof of a dwellinghouse

      1. How old is the house?

      2. Would the addition exceed the highest part of the roof?
      YesNo

      3. Would the addition extend beyond a roofslope to the main elevation of the dwelling, and front a highway?
      YesNo

      4. Would the volume of the addition be greater than 40m3 for a terrace house, or 50m3 for a detached or semi- detached dwelling?
      YesNo

      5. Is the dwelling a listed building or in a conservation area?
      YesNo

      Your Contact Details




      Advice: Planning Permission is required
      Advice: We suggest you obtain a Certificate of Lawfulness

      Class C – Any other alteration to the roof of a dwellinghouse

        1. How old is the dwelling?

        2. Would the alteration project more than 150mm from the roof?
        YesNo

        3. Would the alteration be higher than the highest part of the original roof?
        YesNo

        Your Contact Details




        Advice: Planning Permission is required
        Advice: We suggest you obtain a Certificate of Lawfulness

        Class D – The erection of a porch outside any door of the dwellinghouse

          1. How old is the dwelling?

          2. Would the porch be more than 3 sqm (measured externally)?
          YesNo

          3. Would the porch be more than 3m high?
          YesNo

          4. Would any part of the porch be within 2m of the boundary of the site with a road?
          YesNo

          Your Contact Details




          Advice: Planning Permission is required
          Advice: We suggest you obtain a Certificate of Lawfulness

          Class E – The erection of an outbuilding or swimming pool in the garden of the dwellinghouse

            1. How old is the dwelling?

            2. Following the erection of the outbuilding or pool, would more than 50% of the total garden area of the property (front and rear garden), other than the area of the original dwelling, be built on?
            YesNo

            3. Would any part of the outbuilding or pool be forward of the front wall of the dwelling?
            YesNo

            4. Would the outbuilding have more than one storey?
            YesNo

            5. If it is to have has a pitched roof, would any part of the outbuilding be higher than 4m?
            YesNo

            6. If it is to be within 2m of the boundary of the property, would any part of the outbuilding be higher than 2.5m?
            YesNo

            7. If it is to have a flat roof, would any part of the outbuilding be higher than 3m?
            YesNo

            8. Would the height of the eaves of the outbuilding be higher than 2.5m?
            YesNo

            9. Is the building listed?
            YesNo

            10. Is the property in a conservation area?
            YesNo

            11. Is the property in an Area of Outstanding Natural Beauty or the Broads?
            YesNo

            Your Contact Details




            Advice: Planning Permission is required
            Advice: Planning Permission may be required
            Advice: We suggest you obtain a Certificate of Lawfulness

            Class F – Hardstanding

              1. How old is the dwelling?

              2. Would the hardstanding be to the front of the dwelling, be more than 5 sqm in size and impermeable?
              YesNo

              Your Contact Details




              Advice: Planning Permission is required
              Advice: We suggest you obtain a Certificate of Lawfulness

              Further advice

              We strongly advise that in the event that an extension you are proposing does fall within one of the above classes of development and does not require planning permission that you apply for a Certificate of Lawfulness for the proposal. This is a legal determination as to the need for planning permission for a proposed extension.

              Please contact us for further information. We would be pleased to explain.

              The interaction between the classes can be complex. If you are considering an extension to your dwelling which would involve more than one of the above classes of development or more than one element of one of the classes, and planning permission would be required for only part of the overall proposal, please contact us.

              In addition to the above classes of development that may be added to a dwelling as permitted development, it is possible to extend a dwelling with a single storey rear extension by 6m for a terraced or semi- detached dwelling, or by 8m for a detached dwelling without the need for formal planning permission from the council. The process is one whereby an application needs to be submitted to the Council under what is known as the Prior Approval Procedure. This involves a relatively simple submission whereby the neighbours are consulted about the application and any comments made are considered in the determination of the application. We would be happy to provide an explanation.

              Furthermore, additional floor or floors may be added to a dwelling without the need for formal planning permission from the council, under another Prior Approval Procedure.  As with the larger householder extensions above, this involves a relatively simple submission whereby the neighbours are consulted about the application and any comments made are considered in the determination of the application. Once again, please contact us and we would be happy to provide an explanation.