XL Design Services Limited

We have over 22 years experience and offer a friendly, professional and fast service to residential clients and provide a wide range of architectural, visualisation and structural design services. We carry out 3d visualisations, architectural drawings and specifications for extensions, loft and garage conversions as part of the planning and building warrant application process, as well as providing all structural engineering calculations for alterations to load bearing walls etc


  1. CAD/Drawings

About XL Design Services Limited

• architectural design
• 3d/ virtual reality models
• drawings for planning permission
• drawings for building warrant approval
• listed building consent applications
• structural calculations
• thermal calculations
• agent for statutory approvals
• advice on contracts
• construction compliance visits

The typical range of projects that we undertake are:

• internal alterations
• garage conversions
• single or two storey extensions
• loft conversions


Chartered Engineer (ICE)
B.Eng(Hons) Civil Engineering


Professional Indemnity Insurance

Limit of indemnity: £100,000.00
Valid until: 29th Oct 2023

Latest reviews

  • Granny Annexe / 2 storey extension to main house

    Alan provided an amazing service to our extension project. Initial ideas thoroughly discussed before developing a preferred option. Explained in detail how it would look and why it would be preferred over the other options. Full service catered for with initial drawings/calculations, planning applications and including a 3D model too. Great dialogue throughout all parts of the process. During the build, any issues or queries from the building contractor were expertly and dutifully discussed and answered by Alan when required. As a customer, this amazing service was provided at an exceptional price point too! Would highly recommend Alan and XL Design.

  • CAD drawing

    I engaged the services of Alan to draw up plans for a single storey extension and then submit and see through the planning application on my behalf.
    Throughout the process Alan dealt with matters in a most professional manner, responding without delay to any queries I had or changes I wanted to the original plan.
    He knows the planning process and building regulations so managed to get my application through without any problem. All done for what I consider to be a very reasonable fee.
    I am most pleased with the service he provided and would highly recommend him.

  • Full structural plans for a 5m x 3.5m extension

    I would have no hesitation in recommending Alan. His knowledge of current building standards and planning process, including the quality of his drawings and 3D model was first class. Managed the entire process from start to finish, excellent communication throughout as well.

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