On your behalf, we secure a Lawful Development Certificate
This ensures the legitimacy of your garden annexe

A lawful development certificate submission that has been successfully granted

A Lawful Development Certificate is a legal document issued by a Local Council which guarantees the legitamcy of a Garden Annexe without the need for full planning permission

Our Granny Annexe Lawful Development Certificate Service

In most cases, planning permission is not required for a Garden Annexe. Click here for more details about planning permission

However we recommend that, on your behalf, we secure a Lawful Development Certificate for your granny annexe, for your peace of mind; as this legal document - issued by your Local Council - ensures the legitimacy of your annexe.

Assuming that
a) the annexe is to be located in a typical domestic rear garden
b) the annexe is to be used by a close member of the family

then the LDC will normally be issued by the Local Authourity.

The LDC submission we make on your behalf is normally only listed on a Local Authourity’s website, and yellow notices and neighbour letters are not normally distributed.

During the process, we issue full site drawing and technical specification and submit a detailed 18 page document to the local planning department to secure the certificate. The document builds the case for the annexe’s legitimacy through demonstrating the moveability of the annexe through video evidence and structural drawings. This includes the unique hybrid nature of the Garden Annexe and the DAP technology used in it’s construction. (Note: a competitor’s SIPS style annexes do not enjoy the strength to demonstrate moveability and are therefore not applicable for an LDC is most cases). We use current and previous legal precedents to reinforce each case.

We have a 96% success rate in securing an LDC and a 100% success record when we have needed to go to appeal.

However, we can never guarantee that an LDC submission will be successful, so we never take on a project when we aren’t confident that we will secure the document.

Note: If your annexe requirement does not comply with both a) and b) above, then we will endeavour to secure formal planning permission for your annexe.

We make a small initial charge for our LDC service and this is included within our main quotation.

TAKE THE NEXT STEPS TOWARDS YOUR GARDEN ANNEXE

  • Ask Us - Aiden & Team Customer Care

    Ask Us Granny Annexe Questions

    Call us on 0800 368 9781 with any questions about every aspect of your annexe plans. We’re delighted to offer you impartial advice and guidance.

  • Visit the Garden Annexe display at our factory near Bury St Edmunds

    Visit our Display Area

    Experience the three garden annexes on show at our Display Area near Bury St Edmunds. Open 7 days a week - by appointment only, please

  • Garden Annexe site survey

    Arrange Site Survey

    We offer you a friendly, helpful free site survey of your garden and then provide you with a full, detailed and fixed price quotation for your Garden Annexe.

  • Garden Annexes Brochure

    Request Brochure

    Our new 2026 Brochure and Price List Pack is over 100 pages and includes details of all ranges, sizes and technical information. Download or hard copy.