We are a design-led, award-winning Chartered Architects’ Practice specialising in low-energy, healthy, beautiful buildings. We have had particular success with Paragraph 79 projects and are known regionally for the quality of our design work.


Jillian is a Chartered Architect and founding Director of Lomas and Mitchell Architects and loves to unravel complicated spatial problems. Jillian understands that what Clients really want is trustworthy design and construction advice and guidance throughout a project.

Whilst working in Bermuda, London and Sheffield, Jillian experienced a broad range of project types, from hotels to bus stations and anything in between. She established Project Logistics Architecture in 1997, where she developed a love for private residential work.

Merging her Practice with Lomas Architecture has provided the opportunity to establish Lomas and Mitchell Architects as one of the region’s leading low-energy, design-led Practices.

Jillian specialises in low-energy, healthy and beautiful homes – whether one-offs or several-offs – and has had particular success with gaining planning approval for Paragraph 79 projects. These one-off houses in the countryside need to be of ‘outstanding architectural merit’ in order to gain approval.

Helping Clients explore and express their needs at the start of a project is vital for success and Jillian is particularly skilled in helping them to develop a great brief and explore options before investing in their project.

In her spare time, Jillian enjoys singing in two choirs and playing Petanque, which gets her out in the fresh air and satisfies her competitive spirit.


Richard is a Chartered Architect and founding Director of Lomas and Mitchell Architects and is passionate about low-energy buildings. Richard started his design education with an interior design degree and worked in London in the 1980s on prestigious residential projects, before switching to the parallel track of architecture.

After gaining experience in historic regeneration and arts projects in Leeds, Richard set up Lomas Architecture, specialising in residential design. Richard merged his Practice with Project Logistics Architecture and has gone on to share his experience in low-energy design on contemporary new-build homes and historic properties alike.

A long-standing interest in sustainable design led to Richard becoming a certified Passivhaus designer in January 2012. Since then, he has successfully completed Passivhaus and Enerphit – the Passivhaus standard for existing buildings – projects, including “walking the walk” by undertaking a low-energy, retrofit on his own 1960s house in Sheffield.

Richard takes a calm and measured approach to analysing each project and is equally happy sketch-designing options or evaluating energy strategies for Clients.

When not obsessing over level threshold detailing, Richard may be found sampling the merits of real ale in search of the perfect pint. Frequent trips to the gym and runs out of south-west Sheffield and into the Peak District build up a bit of credit, to allow the occasional indulgence!


Laura is an Architect at Lomas and Mitchell Architects and her mathematics background enables her to solve spatial problems in a practical and creative way.  Laura enjoys the inclusive approach the Practice takes to design, engaging with clients early in a project to fully understand and develop their brief.

Having studied at Sheffield University, Laura went on to gain valuable experience working on the development of the National Horseracing Museum and retention of racehorse facilities in Newmarket, which involved the restoration of a grade II* listed building and stables yard.

More recently, Laura has become more involved in sustainable architecture, including developing the designs for a low-energy private residence.  Planning restrictions required a carefully crafted design, ensuring efficient use of every available space.  Laura has also contributed to the designs of the Paragraph 79 projects in the Practice.

In her spare time, Laura is a keen runner, and enjoys spending time exploring the peaks with her husband and two small children.


Choosing an accredited RIBA Chartered Practice, like Lomas and Mitchell Architects Ltd., will give you peace of mind. Our training and experience enables us to consider your project in depth, to give us a clear understanding of the brief, and ensures that we find the ‘best fit’ solution for you. We follow strict guidelines covering quality management, insurance and health and safety.