Business Details
16 Years
experience
Architectural Design & Surveying for Historic and Sustainable Projects
With over two decades of expertise in architectural design and building surveying, I established my practice in 2010 to deliver tailored solutions rooted in conservation and sustainability. My background includes significant roles at AKSWard/ListerBeare, where I led high-profile conservation projects such as Selfridges on Oxford Street and Kingdon House in Tavistock. Accredited by the RICS for building conservation, my work prioritises the preservation of historic structures while integrating modern, energy-efficient technologies.My portfolio spans Grade II listed properties, cob and thatched buildings, and eco-conscious new developments, reflecting a commitment to blending heritage with innovation. Recognised with awards from the RICS and Devon Building Trust, I provide specialist advice for clients across Devon, Cornwall, and the wider West Country, ensuring projects meet rigorous architectural and environmental standards.
Services
Architectural Design
Building Surveys
Listed Buildings
Cob Buildings
Eco Retrofit
Details
- Year established: 2010
Highlights and features
- Award-winning expertise in historic and listed buildings.
- RICS Conservation Accredited Building Surveyor with 113 global certifications.
- Specialist in cob, thatch, and sustainable construction methods.
- Proven track record with Devon and national projects since 2010.
- Recipient of RICS and Devon Building Trust awards for excellence.
Associations and certifications
- Royal Institution of Chartered Surveyors (RICS)
Services
Architectural Design
Our architectural design services create bespoke solutions blending traditional aesthetics with modern functionality. We specialise in new builds, extensions, and conversions, prioritising energy efficiency. Clients benefit from compliance with planning regulations, heritage guidelines, and sustainable standards across residential and commercial sectors.
Building Surveys
Comprehensive building surveys assess structural condition, identifying defects and repair needs. We focus on historic and listed properties, offering Conservation Accredited expertise. Our reports guide informed decisions, ensuring preservation and compliance with conservation regulations for long-term property value.
Listed Buildings
Specialist conservation work for Grade II and II* listed buildings includes repairs, extensions, and adaptive reuse. We navigate listed building consents, ensuring structural integrity and historical accuracy while modernising amenities and energy efficiency within regulatory frameworks.
Cob Buildings
Expertise in cob and lime render repairs prevents moisture damage from improper cement use. We restore vernacular structures, maintaining their breathability and durability. Services include defect analysis, material selection, and conservation-led rebuilding to safeguard these heritage assets.
Eco Retrofit
Eco retrofit projects enhance energy efficiency in existing buildings using insulation, renewable energy systems, and passive design. We retrofit historic properties with ground source heat pumps, solar panels, and breathable materials, balancing modern comfort with heritage preservation.
People
Building Conservation Services
Architectural Designer & Building Surveyor
A qualified RICS Conservation Accredited Building Surveyor, Sam has over 25 years experience in architectural design and historic building conservation. He founded his practice in 2010 after leading major projects at AKSWard/ListerBeare, including Selfridges and Kingdon House. A Devon native, he specialises in cob, thatch, and sustainable construction, holding affiliations with the Building Limes Forum and SPAB.
Questions
What services does Sam Percival offer?
We provide architectural design, building surveys, listed building conservation, cob construction, and eco retrofit projects, focusing on historic and sustainable solutions.
Do you specialise in historic building projects?
Yes, we have extensive RICS-accredited expertise in repairing and extending Grade II listed and heritage structures, including cob and thatch.
Are your services limited to Devon?
While based in North Devon, we work across Devon, Cornwall, and the wider West Country on residential and commercial projects.
How do you combine sustainability with historic buildings?
We integrate energy-efficient technologies like ground source heat pumps and super-insulated materials into traditional structures without compromising heritage integrity.
Can you assist with planning and listed building consents?
Yes, we manage full design, planning applications, and regulatory approvals for conservation-led projects and new builds.
