Business Details
41 Years
experience
Expert Architects for Historic & Eco-Friendly Designs in Essex
Established in 1985, Kay Pilsbury Thomas Architects is a family-run architectural and interior design practice specialising in historic buildings and eco-friendly design. As a RIBA Chartered Practice and Accredited in Building Conservation (AABC), we combine over 30 years of expertise in heritage architecture with a commitment to sustainable materials and low-carbon technologies. Our team collaborates closely with clients, local authorities, and conservation officers to deliver bespoke solutions for listed properties, barn conversions, and new eco-builds.We prioritise craftsmanship, working with local artisans and specialists to ensure projects meet both modern needs and historical integrity. Our services span from initial concept design to site administration, with a focus on creating spaces that endure for generations while maintaining environmental responsibility.
Services
Historic Architecture
Interior Design
Eco Design
Conservation
Restoration
Details
- Year established: 1985
Highlights and features
- 30+ years of experience in historic property restoration
- RIBA Chartered Practice and Accredited in Building Conservation
- Specialists in eco-design with Green Register membership
- Collaborative approach with local craftsmen and specialists
- Comprehensive project management from concept to completion
Associations and certifications
- RIBA
- AABC
- The Green Register
What people say
Remarkable sensitivity
Expertise and knowledge
Exceptional service
Unflappable throughout process
Best outcomes
Services
Historic Architecture
Specialists in designing extensions and renovations for listed buildings while preserving historical integrity. Our team works closely with conservation officers to ensure compliance with heritage regulations. We blend traditional craftsmanship with modern functionality to create timeless spaces that respect architectural history.
Eco Design
Pioneers in low-carbon building solutions using natural materials and renewable technologies. We integrate solar panels, rainwater harvesting, and eco-friendly materials into both new builds and renovations. Our Green Register accreditation ensures environmentally responsible designs that reduce long-term energy costs for clients.
Interior Design
Expertise in restoring and modernising interiors of historic properties while maintaining period authenticity. Our designers create detailed specifications for joinery, paint schemes, and materials that harmonise with original architectural features. We balance practicality with aesthetic appeal for contemporary living.
Conservation
Accredited specialists in maintaining structural and historical integrity of protected buildings. We employ traditional techniques and materials to repair heritage structures while meeting modern standards. Our approach ensures compliance with planning authorities and enhances property longevity.
Restoration
Comprehensive restoration services for barns, manor houses, and churches using authentic methods. We coordinate with specialist craftsmen to reinstate original features while incorporating necessary modern upgrades. Our process preserves architectural character while ensuring functional adaptability for contemporary use.
People
Sibyl Thomas
Director
Sibyl leads the practice with a focus on historic building conservation and sustainable design. She combines family legacy with modern innovation, ensuring projects meet both heritage standards and contemporary needs. Her expertise in navigating planning regulations has delivered numerous successful listed building projects.
Kay Pilsbury Thomas
Founder
Kay established the practice in 1985, pioneering the integration of eco-design principles with historic architecture. Her vision created a legacy of award-winning conservation projects and sustainable building practices. She remains an influential figure in heritage architecture circles.
Questions
What architectural services do you specialise in?
We specialise in historic building conservation, eco-friendly design, and restoration of listed properties. Our RIBA-chartered team handles projects from barn conversions to new eco-builds.
Which areas do you cover?
We operate across Essex, Cambridgeshire, Hertfordshire, Norfolk, Suffolk, and Bedfordshire, with extensive experience in East Anglia's historic buildings and planning requirements.
How do you approach conservation projects?
We combine traditional craftsmanship with modern techniques, working closely with conservation officers to preserve architectural integrity while meeting contemporary needs and regulations.
Are you accredited for sustainable design?
Yes, we're listed on The Green Register and incorporate low-carbon technologies, natural materials, and energy-efficient solutions into both new builds and renovations.
What project management services do you offer?
We provide end-to-end management from initial design through planning applications to site administration, coordinating with trusted local craftsmen and specialists throughout the process.
