Structural Calculations & Drawings for Domestic Alterations

We have experience providing structural calculations and drawings for all kinds of domestic alterations, from chimney breast removals, internal wall removals and loft conversions to larger extension projects and conversions from houses to flats (and back again!).

Why are domestic alterations a good option?

Domestic alterations are a great option to give you extra floor space, additional rooms, repurpose your existing rooms, improve your property and give you a home more suited to your needs without the strain of moving.

We have over 30 years’ experience working with clients just like you to alter, improve and extend your homes.

Our structural design services

If you are looking to alter your home, the first step is for us to visit your property and carry out a measured survey. We will discuss the project with you, talk through what you want to achieve, and take measurements of all the parts of the structure that might be affected by the proposed alterations. Once we have this information, we then produce structural calculations and drawings for the domestic alterations/strengthening works/beam installations, etc, to ensure that your home is structurally sound and adheres to Building Regulations (if required).

What next?

Alterations to your home can be stressful, which is why we recommend our Contract Administration follow-on service. We will create a schedule of works covering all aspects of the project, get quotes from local contractors (we have our own list of approved, vetted builders and we hold copies of their insurance details), produce an analysis of the prices, and let you know our recommendation.

We will then visit site regularly while the works are being undertaken to make sure everything goes smoothly, make sure valuations and invoices from the builders are correct, and sign off with a Certificate of Structural Adequacy or Completion Certificate at the end of the project.

  • house before domestic alterations
  • after domestic alterations

Are you thinking about having an extension, loft conversion or knock-through? We’d love to get involved and provide you with structural calculations and drawings for your project: call us on 01903 217723 or email

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