About Hampshire Build — Expert Extension Designers
Hampshire Build is an architectural design practice specialising in extensions, loft conversions, and garage conversions — helping homeowners across Hampshire, Surrey, Hertfordshire, and beyond achieve planning approval and beautiful results.
Meet Mark Eden, Founder & Director
With over 25 years in residential architectural design — and having worked across Hampshire, London, Surrey and beyond — Mark founded Hampshire Build to remove the stress that so often surrounds the planning and design process.
His professional background includes 25 years as Director of a successful home extension specialist company, working extensively across residential design, planning applications, and building regulations across the South of England.
Hampshire Build was founded with a single mission: to give homeowners across Hampshire, Surrey, and Hertfordshire a straightforward, fixed-fee route from idea to planning approval — without the complexity or cost of a traditional architect.
"With over 25 years in residential architectural design — and having seen first-hand how stressful the process can be — I founded Hampshire Build to make it straightforward. Fixed fees, clear drawings, and a team that stays with you from first sketch to planning approval."
— Mark Eden, Founder & Director
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Mark Eden
Founder & Director
25+ Years in Residential Design
Winchester, Hampshire
Our Values
The principles that guide every project we take on
Family First
We understand family life because we live it too. Every design considers how families actually use their homes — not just how they look in photographs.
Respecting Your Time
No endless meetings or drawn-out processes. We deliver efficient, professional service that fits around your busy life.
Quality & Excellence
Every project meets the highest standards of design and technical excellence — from planning drawings through to full building regulations.
Honest & Transparent
Clear communication, fixed pricing, and no hidden surprises. We treat every client with the same care and honesty.
A Specialist Architectural Design Practice
Hampshire Build focuses entirely on design — every drawing, every planning application, every building regulations submission, and every council approval. That singular focus means your project gets our full expertise, from first sketch to final sign-off.
Because design is all we do, there's no conflict of interest and nothing to upsell — just honest advice and a single fixed fee from day one. And when you're ready for a contractor, our panel of vetted, trusted local builders is on hand, each independently checked and ready to provide competitive proposals for your project.
- Fixed-fee packages from £1,950 + VAT
- 98% planning approval rate
- Architectural drawings to full building regulations standard
- Specialists in extensions, loft conversions & garage conversions
- Covering Hampshire, Surrey, Hertfordshire & beyond
- Free initial consultation
Making Extensions Simple
Clear, Fixed Pricing
No surprises, no hidden costs. You know exactly what you're paying from the start — from first consultation to planning submission.
Efficient Process
Streamlined approach that delivers results without endless meetings and delays. Most projects move from brief to submission in weeks, not months.
Family-Focused Design
Extensions designed for real family life across Hampshire, Surrey, and Hertfordshire — not just beautiful photographs.
Why We Started Hampshire Build
After years watching homeowners struggle with complicated, expensive, and slow extension processes, Mark saw an opportunity to do things differently.
Hampshire Build was created to give homeowners across Hampshire, Surrey, and Hertfordshire access to professional architectural design at a transparent, fixed cost — without the uncertainty of traditional firms.
"We believe every homeowner deserves space that works for their life — without the stress and complexity that traditionally comes with home extensions."
Let's Design Something Brilliant
Fixed fees. No surprises. A 98% planning approval rate. Whether you're planning an extension, loft conversion, or garage conversion — we'd love to help. Book a complimentary consultation and let's talk through your project.
No obligation · 30-minute call · Fixed fees from £1,950 + VAT