Extension & Conversion Architectural Design Cornwall


Trevaskis Design Solutions offer a full range of home extension design services for property owners in cornwall looking to improve their living space.

We guide you through the entire extension process, from initial plans, to permissions and consents, through construction to interior design if required, and will always provide a binding quotation before construction begins, to allow financial peace of mind.

We can provide high-quality architectural drawings and 3D designs for all manner of extensions, with an option to provide construction services if required.

Upon completion, all building work will need to be inspected by a Local Council inspector, whilst we will provide the relevant gas and electricity safety certification. Throughout the process we ensure all work conforms to current regulations and matches or exceeds your expectations.

home extension & conversion design cornwall

If you are planning an extension or conversion for your home, TDS can help you with the planning and design right through to the construction phase of your project.

Whether you need architectural drawings for a new extension or need advice on planning laws in Cornwall, we work closely with you to help make your property improvement dreams a reality.

We are up-to-date with all the latest planning and building regulations and understand the particular demands of planning an extension or conversion in Cornwall.

We also have a network of trusted local construction suppliers in Cornwall so can help you with the build phase of your construction project.

Our services include architectural drawings and submitting planning regulations for conversion and extension projects in Cornwall including:

  • Loft (dormer) conversions
  • Barn conversions
  • Attic conversions
  • Kitchen extensions
  • Mill conversions
  • Garage conversions
  • Rear home extensions
  • Second or multi-storey extensions
  • Wrap around home extensions
  • Kitchen extensions
  • Outbuildings, garages and conservatories

Based near Falmouth, we work as extension and conversion architectural designers across Cornwall including Truro, Newquay and St Austell.

"Rob has Been everything we would look for in an architect. Great vision, pragmatic and realistic, helpful, full of advice and very efficient. He helped us balance our vision for our extension with a healthy dose of realism to allow us to make the best decision for us. It’s a shame we are only extending once, because we’d definitely use his services again."

- Gary Gray on Google

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