Step 2: Design & Planning


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  • Design & Planning

    The team at Create-Room can originate full working drawings and structural calculations for your proposed extension.

    We will demonstrate our experience when preparing your plans. They will be originated to provide you the maximum space achievable while being considerate to the existing property. We will consider all relevant approvals required so that they are considered in the design of your future extension.

    Building extensions is a specialised area, and we take into consideration all factors.

    We have numerous extensions that we have previously built and constructed for you to look at. This may give you an idea of what you are looking for in an extension.


    An appointment will be made and one of our experienced Surveyors will visit your property. Accurate measurements & dimensions of the existing dwelling are recorded and photographic evidence of your existing property will be taken.

    This will enable us to be sympathetic with the existing property when designing your proposed extension. Preliminary drawings will then be originated in accordance with your specific requirements.


    The preliminary drawings will be presented to you for your approval. Any amendments in the design or layout can be made at this point.

    Once you are happy with the plans, Full working plans will be originated incorporating a structural layout. Full, working structural calculations will be originated.

  • Building Regulations

    What Is Planning Permission & Is It Required?

    In most cases you will need a successful application for planning permission before any work is allowed to commence.

    Planning permission is very important, because it allows your local council to plan for the future and understand how the land is being used. This will have an impact on the appearance of buildings, the general landscape and even things such as road access and environmental implications.

    Do I Need Planning Permission?

    You will need planning permission if any of the following applies to your extension:

    The extension is higher than the highest part of your original roof.

    Any part of the extension is more than four meters high and within two metres of your boundaries.

    The extension will take up more than half of the total ground area of your land (this excludes ground covered by the original property).

    The total volume of the original building will increase by more than 115 cubic metres.

    The total volume of the original building is increased by more than 10% for terraced houses or any property in a conservation area of national park.

    What Is The Planning Process?

    Once your your plans have been submitted to your local council, it will place the plans on the Planning Register for public viewing and they will also notify your neighbours. Your local council will also appoint a committee who will make a decision with regards to the planning application. This decision can take up to eight weeks to be made and if you are granted permission you must have the proposed work completed within five years. If you are denied planning permission you can make amendments and then resubmit within 12 months, without incurring a further charge. An appeal can be lodged within three months of a council’s decision.

    When extending your house you will need to make sure that you comply with government building regulations. This will apply to you unless your extension falls into one of the following categories:

    – Porch
    – Conservatory
    – Detached garage (built at ground level and taking up less than 30m2 of floor space) see garage conversions section

    These building extension regulations apply to any building in England or Wales. They aim to set a minimum standard for the design and construction of the building in order to comply with health and safety regulations. There are also extension regulations regarding fuel and power conservation.

    We will make sure that your extension meets all the building regulations that could apply to your property.

    How Do I Comply With Building Extension Regulations?

    Building regulation approval is an entirely different entity to planning permission. However it is of upmost importance to ensure that you get both. To achieve compliance with building regulations you (or your architect if you have one) will need to submit very detailed plans on the extension, along with the application and fee to your local planning authority.

Follow our simple 4 step process when carrying out an extension: