Transforming smiles, Transforming lives
Hello and welcome to InaSanctum Designs. We are a design and build business specialising in timber frame structures, including traditional oak post and beam frames, 'glulam', steel, masonry, or a combination of materials tailored to the project. Please feel free to explore this website and get in touch, even if you are simply contemplating a concept to meet your needs. Our guiding principle is to advise you on the realm of possibilities based on over three decades of experience both in the UK and overseas.
Background - Simon Cowcher
InaSanctum Designs is led by Simon Cowcher, who has honed his skills over nearly three decades and has a deep understanding of the planning system. Simon is persistent in advocating for his clients and is also pleased to provide advice on pre-purchase and speculative schemes before any further action or costs are incurred.
Sawmill & Hand Drawn Plans
Our journey begins at our sawmill, where we create hand-drawn plans that reflect our personal touch and commitment to quality. We believe that every living space should cater to all family members, and we take great pride in designing spaces that exceed expectations while taking cost management, planning policy, and intricate details into account.
Our Work
We take a personalised approach to every project, starting with listening to your goals and guiding you through possible options based on site or other limitations. We then develop a design that meets or surpasses the brief, always considering cost management, planning policy, and other essential details from the outset.
Some of the projects we have completed include:
- Barns
- Garages
- Clubhouses
- Pavilions
- Rural Craft Centres
- Equestrian buildings
- Medical Complexes
- Pool Houses
- Stables
- Orangeries
- Gatehouses
- Home Offices
- Teenage Party Barns
- Guest Lodges
- Mobile Retail Units
- Observatories
- Shooting and Fishing Lodges
- Oak Framed Houses
- Ski Chalets
- Retreats
- Writing Rooms
- Rural Recording Studios
All of our projects are manufactured and built in our vented and heated workshops, using skilled craftsmen who take great pride in their work.
Planning & Design
We begin by listening to your goals and assessing any site or other limitations that may impact the project. We then develop a design that meets or exceeds the brief while taking cost management, planning policy, and intricate details into account. Once we have a design that meets your approval, we can cost the entire project and handle the planning process if required, all in-house.
Manufacture & Build
Once the necessary permissions are granted, we organise all aspects of the build. We manufacture in the dry within properly equipped heated and vented workshops, using skilled craftsmen and allied professionals. We are happy to complete the project entirely to handover or leave interior finishes to others, depending on your preference.
Off-site manufacture remains the key to a perfect project, allowing for quick assembly on-site and minimising the impact of weather and other hindrances. Last year, we completed an oak framed house exterior to watertight finish within six weeks of commencement on-site.
Consultation & Advice
Simon is available for consultation and advice, offering his skills and knowledge gained over nearly three decades. He understands the planning system well and is tenacious in representing his clients. We are happy to offer guidance on pre-purchase and speculative schemes before any further action or costs are incurred.

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