Heritage Renovation & Development — South West England
Heritage restored.
Spaces transformed.
Premium renovation and development specialists trusted by discerning homeowners across Bath, Somerset, Wiltshire, and the Cotswolds.
Craftsmanship rooted in the
tradition of the South West
Collstone Projects works exclusively on listed buildings, heritage properties, and bespoke new commissions that demand an uncompromising level of care. Our team brings deep experience in traditional building methods, conservation-grade materials, and the particular patience that exceptional work requires.
We are not a volume contractor. Every project receives the undivided attention of our founding team, from the first site visit through to the final coat of limewash. Clients engage us because they value precision, transparency, and a contractor who treats their home with the same reverence they do.
What We Do
Our areas of expertise
Renovations
Restoring what matters most
Sensitive renovation of listed buildings and luxury homes, from structural repair to complete interior refurbishment. We work to the highest conservation standards with a respect for original materials and methods.
Conversions
New purpose, original character
Conversion of barns, coach houses, and outbuildings into exceptional homes. Our team navigates planning, conservation consent, and structural challenges with experience honed over two decades.
Craftsmanship
Bespoke joinery and fine finishing
Hand-crafted joinery, bespoke cabinetry, and traditional finishing techniques. Every piece is designed in close collaboration with the client and made to endure for generations.
Featured Work
Our projects
Renovation
Glastonbury Manor
A complete refurbishment and interior design transformation of a 16th-century manor in Glastonbury.
Conversion
Pilton Spa
A bespoke barn-to-spa conversion delivering commercial-level wellness facilities within a listed 16th-century barn, set in a Conservation Area.
Renovation
Sutton Veny
A full refurbishment of an 18th-century country house, elevating every aspect of the property while respecting its history and restoring its beauty.
How We Work
A process built on transparency and trust
Discovery
We begin by understanding your property, your vision, and your expectations. Through in-depth conversations and a thorough site assessment, we establish feasibility, identify opportunities, and ensure we're aligned on outcomes from the very start.
Design
Working closely with you and your architect, we develop a design that balances creativity with practicality. Our experience ensures buildability, compliance with regulations, and respect for heritage — preventing costly changes later in the process.
Planning
Securing the necessary approvals and permissions is critical, particularly for listed buildings and heritage properties. We manage all aspects of planning, building control, and specialist consents, navigating the process on your behalf.
Construction
With approvals secured and plans finalised, construction begins. Our project managers oversee every detail — from initial groundworks to final finishes — ensuring quality, managing timelines, and keeping you informed throughout.
Variations
Even the best-planned projects encounter unforeseen circumstances or opportunities for enhancement. We manage variations transparently, providing clear costings and timescale adjustments, ensuring you remain in control of decisions.
Completion
Our relationship doesn't end when the work finishes. We conduct comprehensive snagging, provide detailed handover documentation, and offer a full 12-month aftercare period, ensuring your complete satisfaction and peace of mind.
Standards & Credentials
Fully accredited, independently verified
Every accreditation we hold has been earned through independent assessment. When you engage Collstone, you can be confident that our credentials are current, our methods are approved, and our standards are externally verified.
FMB
Federation of Master Builders
Full membership with commitment to quality standards and customer protection
Citation
Citation
Health, Safety and HR compliance specialists supporting Collstone's commitment to best practice on every project
Trusted Partnerships
Partners & suppliers
We work exclusively with suppliers and partners who share our commitment to quality. These long-term relationships ensure consistency in material standards and specialist expertise across every project.
Client Voices
Trusted by homeowners
across the South West
Excellent attention to detail on plastering and finishes. The schedule was realistic, updates were regular, and any snags were handled quickly and calmly by the crew.
Kevin Coleman
Google Review
They turned our ideas into reality. Excellent craftsmanship and reliable communication throughout the build. Very satisfied with their service and outcome!
Brooks Matthias
Google Review
Really impressed with the professionalism and quality of work. The team at Collstone kept me informed throughout the project and delivered exactly what they promised.
Amber Jane
Google Review
We had a great experience working with Graham and the Collstone team. Always available to answer questions and kept everything on track.
Jude Haynes
Google Review
The team at Collstone are brilliant — punctual, professional, and dedicated to quality. A pleasure to work with from start to finish.
Elijah Cooper
Google Review
Collstone Projects are a team of professionals with an impressive portfolio of high-end renovations under their belt. I would highly recommend them to anyone.
Alex Gray
Google Review
Founded on Excellence
A Personal Commitment to Exceptional Standards
Founded in 2022 by Patrick Coll, Collstone Projects was established with a clear vision: to offer homeowners and property owners across the South West a seamless, start-to-finish renovation experience defined by quality, care, and attention to detail.
From listed buildings and heritage restorations to luxury homes and bespoke conversions, Collstone brings together traditional craftsmanship and modern innovation to deliver beautifully executed spaces with professionalism at every stage.
Based in Warminster and working across Somerset, Wiltshire, Bath, Glastonbury, and the Cotswolds, Collstone is known for its personal service, local expertise, and commitment to exceptional results.
“At Collstone Projects, we bring our clients' visions to life with bespoke renovations that blend craftsmanship, precision, and innovation. From heritage restorations to contemporary transformations, we deliver excellence every time.”
— Patrick Coll, Founder
Start a Conversation
Tell us about
your project
Initial consultations are always complimentary. We respond to all enquiries within one working day, and treat every conversation with complete discretion.
What to expect
- 01
Complimentary consultation
A brief, no-obligation call to understand your property, your ambitions, and how we can help.
- 02
Initial site visit
Where appropriate, we arrange an early visit to assess the property and discuss scope in person.
- 03
Tailored proposal
A considered, detailed proposal aligned with your brief, timeline, and investment level.
We work with a carefully selected number of clients at any one time. This ensures every project receives the attention and craftsmanship it deserves.