House Extension Interior Architect

"Sean Payne Arch Design are simply awesome. Sean is a highly competent architect and the standard of his work and quality of presentations really is 5 stars. Before engaging Sean my partner and I undertook a review of all local architects and interviewed 3.

Sean was competitively priced and seemed very knowledgeable and his fee/work proposal was the best by far. Throughout all stages of the project Sean has been contactable for advice and I would have no problem recommending him. we would certainly use his services again."

David Miller - House Extension in Kent
Modern house design architect

"Sean was an absolute pleasure to work with. He produced a very high quality of work on time every time. I would have no hesitation in recommending him and I will certainly be using his services again in the future."

Simon Phipps - Container Outhouses
Bespoke House Design Architect

"Of all the bids Sean was the only one that understood exactly what I needed and offered a fixed fee. Working with him was a pleasure, took the time to explain things and the turnaround was very impressive. I am a very pleased client and would highly recommend."

M.M.J - Planning permission approved on an outdoor office space, Maida Vale

Why Choose Us?

Cutting edge design should be available no matter the site, budget and brief. Our technology, skills and experience can make it happen. Whether a small residential extension plot in the back garden or an Eco House in the green belt, let's make it happen together.

Sean Michael Payne.

Architect & Designer
ARB, DipArch, MArch, BA

Sean Payne Building Architect

Working With An Architect

The Building Design Process

Home Design Architect

Now - Free Consultation and Plan For Your Project

The free initial consultation is here to provide you with everything you need to know about your new project. This includes discussing and clarifying the requirements for your project, the estimated budget you should expect, any project specific timelines and our fees.

Within 1 Week, Book Now
New Build Modern House

Week 1 - 4 Measured Survey to Planning Submission

This first stage covers the measured survey for your site, creating the existing and proposed design through drawings, CGI 3D images and video animations.

This section also includes revision meetings to ensure you are happy with the design before submitting the project for planning permission.

2 - 3 Weeks
Metal Clad House

Week 4 - 10 Planning Management

After your project is submitted for planning permission, if normally takes 6 weeks for your local council to make a decision (8 weeks for commercial projects).

We include for communication and management during this time, ensuring your project is well received and addressing any concerns by the council. This gives you the best chances of approval for your project.

6 Weeks For The Council Decision
Townhouse Rear Extension

Week 10 - 14 Building Regulations Approval

After your project gains planning permission, we add additional detail to your project to make it construction ready. We guide you through the process of appointing a Structural Engineer and a Building Control Officer that are trusted from our previous projects. 

Managing this process, we ensure that your project documents gain building regulations approval and are ready to hand to builder ready for construction.

We also provide for tender services, inviting recommended builders to bid for your project.

3 - 4 Weeks
Timber Clad house extension

Week 10 - Completion - Contract Administration and Support When Needed

With your project ready to hand over, many clients find they can continue the project directly with their builder. However, services are available for contract administration and additional help if preferred or required by you.

Subject to Builder's Timeframe

Follow Us

House Building Architect UK Work Areas

Where We Work

Sean Payne Arch Design Ltd operate throughout the South of England, London and Manchester. We also take on specialist work internationally, including Canada, France and the USA. see below for the full list of areas we service:


Blackburn, Rawtenstall, Burnley, Halifax, Rochdale, Bury, Bacup, Accrington, Littleborough, Waterfoot, Todmorden, Bradford, Bolton, Keighley, Manchester, Oldham, Great Harwood, Barrowford, Sale, Stockport, Denton, Failsworth, Cheetham Hill, Salford, Stretford, Pendlebury, Eccles, Hyde, Worsley, Haworth.


Greenwich,  Brixton, Stratford, Barking, Hackney, Walthamstow, East Ham, Islington, Mile End, Bow, Romford. 

Southeast London

Lewisham, Blackheath, Bromley, Bexleyheath, Woolwich, Meopham, Longfield, Royal Tunbridge Wells, Gravesend, Dartford, Bexley, Rochester, Sidcup. 

Tel: +44 20 8638 5243

© 2020, Sean Payne Arch Design limited company registered in England and Wales | Registered number: 12628241 | Registered office: 124 City Road, London EC1V 2NX