Residential Architectural Design
and Planning
Home Extensions and Conversions Planning Permissions, Permitted Development and Building Regulations
We are a new and aspiring architectural practice focused on residential projects. We provide planning permission and building regulations drawings for home extensions, loft conversions, and other domestic improvements all at cost-effective prices. Our design-led approach ensures creative solutions tailored to your needs and compliant with current regulations.
London | Manchester | Leicester | Leeds
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About Us
Arch One is a fresh, design-led architectural practice offering comprehensive drawing services for home extensions and loft conversions. We help guide you through the planning permission process and provide complete drawing packages, including detailed building regulations drawings to support your project from concept to construction.
Our Process
We start by doing an initial consultation about the project to understand the needs of the client and explore options. We then conduct the site survey to take measurements of your property and build Existing Drawings and 3D models. Next comes the proposal design stage following which comes the planning submissions. Once you gain planning permission, you can proceed with construction.
Our Services
We currently offer the following services at highly affordable prices.
House Extensions
Loft Conversions
Building Regulations
Planning Permission
Pricing Packages
We offer transparent and affordable pricing for residential architectural design services in the UK. Whether you’re planning a small
extension or a full loft conversion, we provide tailored packages to suit your needs and budget.
Rear Extensions
From £399 (Exc. VAT)
Includes:
- Initial consultation (via phone or video)
- Measured site survey (depending on location or client-provided measurements)
- Existing and proposed floor plans, elevations, and roof plans
- Design revisions upto 2
Loft Conversions
From £499 (Exc. VAT)
Includes:
- Initial consultation (via phone or video)
- Measured site survey (depending on location or client-provided measurements)
- Existing and proposed floor plans, elevations, and roof plans
- Design revisions upto 2
Building Regulations
From £499 (Exc. VAT)
Includes:
- Initial consultation (via phone or video)
- Measured site survey (depending on location or client-provided measurements)
- Existing and proposed floor plans, elevations, and roof plans
- Building Regulations Compliance Drawings
Add Ons
Our Add-Ons Include:
Areas We Operate
At Arch One, we proudly offer architectural design services across key cities in the UK. Whether you’re planning a home extension, loft conversion, or full renovation, our team is here to help, from initial drawings to planning permission and building regulations. We currently operate in the following major UK cities and their surrounding areas:
London
North London – Camden, Islington, Finchley, Hampstead, Highgate, Barnet
South London – Croydon, Clapham, Wimbledon, Dulwich, Bromley
East London – Stratford, Hackney, Walthamstow, Barking, Dagenham
West London – Ealing, Hammersmith, Fulham, Kensington, Richmond
Central London – Westminster, Soho, Marylebone, Paddington
Manchester
Didsbury, Chorlton, Sale, Altrincham, Prestwich, Salford, Withington, Fallowfield, and Worsley
Leeds
Headingley, Roundhay, Chapel Allerton, Horsforth, Moortown, Armley, and Rothwell
Leicester
Oadby, Knighton, Evington, Clarendon Park, Braunstone, Belgrave, and Birstall
Email: info@arch-one.co.uk
Phone Number: 020 3576 3352
Get In Touch / Tell Us What You Need