We are Forty8 Design Ltd

Established in 2019 by Trevor Cousins following 20 years of working for large private practices. Trevor has become a well-connected figure in the north west construction and development sector, and been involved as Project Architect for a range of high profile developments including; The TV Studios at MediaCityUK, No.1 Spinningfields Office for RBS, and master planning and development work for MUFC at their Carrington training complex, aswell as maintaining a hand in domestic work .


We design and deliver residential, commercial, industrial, sport, leisure and education projects.

Forty8 Design Ltd is a Small Architectural Design practice based in Cheshire but operating throughout the UK. We pride ourselves on our commitment to provide a professional and speedy service at all times, whilst maintaining the highest quality of work.

We have a wealth of experience across many sectors including commercial, industrial, sport & leisure, residential (with particular focus on domestic extensions & new build), care homes and supported living schemes for various UK service providers.

Forty8 Design Ltd has a proven track record of great design, effective problem solving and attention to detail – our goal is to meet and exceed the expectations of every customer.  All of our projects are carried out to the highest standards, and at very competitive prices.

Key services:

  • Within the domestic residential market our services cover scheme design, planning advice & submissions, building regulations, surveys and preparation of CAD drawings.
  • For larger commercial projects we can provide a full or tailored service to cover stages of the RIBA Plan of Work 2020.

Please feel free to contact us to discuss your project requirements large or small.

Residential | Commercial | Industrial | Sport/Leisure | Education

We are members of the Local Architects Direct. Find us here.


“Voyage Care have been using the expert services of Trevor at Forty 8 Design since he established the business. Trevor’s professionalism and industry experience are unrivaled, making the company a pleasure to work with for our regular and various architectural needs. Forty 8 Design are very positive right from the outset of any project, even when it involves a problematic listed building………With their consistently high standards of service and quality, I would highly recommend Forty8 Design to other businesses – you will not be let down.” 

Voyage Care, Lichfield

“I would highly recommend using Forty8 Design Limited, Trevor was very professional and very informative. He dealt with all aspects of me obtaining a positive planning application.”

Sellyoak Limited, Sale

“Trevor supported us through our extension project with great ideas/plans after listening to our wish list for the project. He was efficient and always on hand to help with any questions. Would recommend!”

Rachel Williams, Wilmslow

“Trevor acted as the architect for our house extension and has worked with us to achieve our goals, listening to what we needed and coming up with solutions. Trevor has provided ideas, feedback and questions to make us think about all aspects of the build. Real involvement to make sure he delivered a quality outcome which made life easy for us getting it all through planning and easy for builders to quote. Trevor took pride in the job as if it was for his own home, thanks.”

Mr Paul Lewis, Wilmslow

“Excellent service. Turned a tired old two-bedroom house into a modern and spacious three-bedroom house.  Fast and friendly service. Over the moon with the plans Forty8Design designed for my property.  Highly recommended.”

Mr J Litherland, Cheshire


TV Studios, MediaCityUK

Designed and delivered as Project Architect whilst working for The Fairhursts Design Group.The studio building comprises 8 TV studios, MPAS Theatre and home for the BBC Philharmonic Orchestra. All supported by full post-production facilities, visitor centre, hotel and speculative offices.

Old Trafford, MUFC

Full audit, analysis and development proposals for Old Trafford and its environment. Commission incorporated individual concept schemes, and recommendations for

refurbishment and new build.

Media Lab

Technical Fit-Out of the Media Lab for UA92 within the former Kelloggs

Building at Old Trafford. Scheme included the acoustic design and layouts for a training TV studio, Control room and Audio room.

Garden Activities Room

Sustainable garden building for those requiring transformational care in the grounds of a Somerset Care Home. Scheme provides additional invaluable flexible accommodation and storage, for one-on-one and group-based activities.

Factory extension

Side and 1st floor extension to existing factory to create

additional storage space for materials and finished goods. Circa 500sq.m additional floor area within a restricted plot.

Private Detached House,


General modernisation of a private dwelling in Cheshire, with front and rear extensions, incorporating enlarged bedrooms with ensuite and dressing rooms, open plan kitchen-diner, home office, and external makeover to remove

dated windows and cladding materials.

Private Terrace House, refurbishment

Internal refurbishment drawings for a period property in the suburbs of London, followed by Planning drawings for a full loft conversion and rear extension into master bedroom with ensuite and guest room.

Private Detached House,


Rear and side extension to a private dwelling and rationalization of the

dated layout. Scheme incorporated new kitchen-diner, children’s playroom, family bathroom and dedicated entrance hall, set behind modernised facades.

3 Bed

Concept scheme for 3 bed contemporary home in Cheshire

2 Bed

Concept scheme for 2 bed contemporary home in Surrey

Gated Supported Living

Scheme design for new gated Supported Living development in the Midlands, comprising 10no. 1 bed apartments with private gardens and dedicated staff office. Community based secure living providing accommodation for vulnerable adults needing transformational care and set within the context of a residential street. 

4 Story Supported Living

Scheme design for new 4 storey Supported Living development providing 21 no. 1 bed apartments,  with dedicated parking, set between 4 storey and 2 storey existing residences.

Private Detached House refurbishment and extension

Modernisation and extension of an undersized detached 1950s house set within a large rural Cheshire plot.

Scheme design includes demolition & rationalisation of space, 2 storey extension, replacement windows, and over-cladding of patched brickwork, to give a cohesive elevational appearance in a countryside setting.

Sports Centre Changing Room Refurbishment

Complete renewal of communal shower and toilet facilities, including new showers, wall panelling, cubicles and vanity units, flooring throughout, and refurbishment of existing lockers and benching.

Pharmaceutical Lab Refurbishment

Refurbishment of existing lab space and installation of new state of the art Lyophilizer machine, to future proof the growing needs of a global pharma company at their Manchester location.

Private Detached House extension and refurbishment

Double storey extension to provide enlarged modern family kitchen space, dedicated cinema room, & additional bedroom. Reconfiguration of first floor layout to provide ensuites to all bedrooms and dressing room to master.



Please get in touch for an informal discussion about your requirements.

10 Ashdene Rd, Wilmslow SK9 6LH, UK

07581 422979