Architectural Design Services, Domestic Extensions and Refurbishments, Minor and Major Residential Developments, Commercial Projects, Planning and Building Regulations. ESP Design combines architectural design and technical detailing to create bespoke build solutions. We believe that no two projects are the same and we draw on over 20 years' experience to conceptualise unique build designs for residential, commercial and developer clients. 1. Architectural Design Services 2. Domestic Extensions and Refurbishments 3. Minor and Major Residential Developments 4. Commercial Projects 5. Planning and Building Regulations 6. 3D Visuals