Release the potential in your home

Email david@extendeddesign.co.uk

Tel 07702 682888

Extended Design LTD

97 The Farthings Astley Village Chorley



Prior to setting up Extended Design to focus on home extensions, David Perry has been employed as a Design Engineer with part of a chartered structural design practice for over 20 years working with some of the bigger national house builders (Barratt Homes, Morris homes, Wainhomes, Jones Homes etc).  He still carries out contract work for some of the bigger engineering practices, and also provides building regulations details and structural designs for other planning approval practices on a consultant basis.

All structural calculations are carried out with the most economic solutions in mind

We deal directly with the local authorities taking the guess work out of the application process


Extended Design Limited is a members of the Local Authority Partner Scheme.   

All of our building regulations applications are dealt with by one source at building control resulting in a more streamlined and efficient service.


Extended Design Limited is a member of the Central Lancashire Business Club and a member of the Federation of Small Business




"I would have no hesitation in recommending David Perry of Extended Design.  David listened to our requirements, completed and submitted the drawings and planning application to the council and dealt with the whole transaction from start to finish, taking all the hassle away.  The service he provided was second to none and was fantastic value for money.  I have recommended him to family and friends, all of whom have been equally delighted."

Julia Monks, CeCM CeMap


"I met David Perry through recommendation. His response to my call was prompt and he was prepared to work flexibly as per the schedule of a busy doctor like myself.  During the first visit we were extremely impressed with the clarity with which he described the planning process.  I have found him to be professional, knowledgeable and easy to work with. I would thoroughly recommend him to anybody who wishes to undertake substantial renovation or build but does not have much knowledge of the process. It will be a rewarding experience"

Somnath kumar
Consultant Cardiologist
Lancashire Teaching Hospitals



"I first became aware of Extended Design and David Perry when I was looking for someone to produce designs, drawings and obtain Planning and Building Approval for an extension to my property.

I was most impressed by the manner in which David approached the project, he was most professional in every way.

From our initial meeting until final approval and sign off by the Building Inspector David was always available to answer questions and provided valuable advice.

At one stage of the project there was an unforeseen issue with a structural element - David visited the site the same day to discuss details with my builder to resolve the problem.

I would have no hesitation in recommending David and Extended Design in the future"


Tony Critchley,  Standish


Extended Design Ltd Telephone:- 07702 682888    Email:- mail@extendeddesign.co.uk

Company Number 06801934 (England and Wales)

Trading Address:- Extended Design LTD 97 The Farthings Astley Village Chorley


(Registered office : Vantage House, East Terrace Business Park, Euxton Lane, Euxton, Lancashire PR7 6TB)