House at night with curve roof, large glass windows and swimming pool. Curved luxury spa building design with outdoor pool and seating area Modern house with overhanging 2nd floor, patio, glass doors and balcony and and grass Outdoor spa pool at headland Hotel with stone walls and seating area Old Cornish mine house conversion in wheel kitty landscape with sea Inside spa pool with stone walls and water feature. Large redeveloped old school building with stone walls by a road. Wooden veranda with garden and sea view on a sunny day Side view of large curved window with reflection of garden and grey stonework Modern home interior with large windows, wooden furniture and white walls. Curved terraced housing development with large windows, stone walls and communal garden


Based in the heart of Truro, Lilly Lewarne Architects undertake a variety of projects throughout the entire south of England.

Our aim is always to strive for excellence in design, and to provide a sensitive yet professional service which fully meets the needs of all our clients. As with our ever changing society we constantly find the need to adapt, revise and reconceive the architectural language we employ.

We design with site, time, materiality, sustainability and humanity in mind to enable us to create an architecture that is appropriate and not just wilful. We endeavour to employ a sense of clarity to our projects to handover to the client a building they can be proud of and promote as a positive part of their business or as an extension of their character.

By employing the latest technology in association with traditional hand drawing techniques Lilly Lewarne Architects are able to provide a fully comprehensive service – ranging from the early stages of feasibility designs and planning negotiations through to the preparation of production/construction drawings and ‘on site’ inspections, and where required the integration of internal design and fitting-out elements.

Our story & what we do
Architectural 3D drawing of modern wooden clad block of flats.


Here are a selection of projects undertaken throughout Cornwall. View more here.

Services Provided

  • Project Appraisals

  • Planning & Listed Building Applications

  • Procurement Advice & Tender Action

  • Urban Regeneration

  • Formulation Of The Brief

  • Building Regulations Applications

  • Expert Witness

  • Community Projects

  • Feasibility & Concept Designs

  • Productions & Construction Drawings

  • Master Planning

  • Construction Contract Administration

  • Traditional Contracts

  • Design & Build Contracts

  • Management Contracts

CGI Visualisations

Lilly Lewarne Architects are experienced in providing photorealistic, computer generated visual perspectives, which can be key to visualising and realising project/design aspirations.

Left: Photorealistic CGI image | Right: Actual Photograph

Client Testimonials

“Lilly Lewarne not only showed their own passion but believed in ours, guiding us through the technical minefields whilst remaining committed to the brief we had set them.”
Mr & Mrs J Dukes

“Lilly Lewarne have proven to be highly professional in dealing with a complex planning, design and construction project; faced with often unexpected challenges, the team have always reacted quickly and effectively, proposing and implementing change where needed. It has been a pleasure to work with James and his team, and I would not hesitate to recommend them to other owners.”

Mr & Mrs Robson
Royal Institute of British Architects RIBA logo
House Holder Accredited Agents Scheme Cornwall Council Logo
ISO 9001 Registered Firm Logo
Charted Institute of Architectural Technologists logo