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 15 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 15 years as Director of a successful home extension specialist company, where he developed deep expertise in 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 15 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
15+ 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.
An Architectural Design Practice, Not a Builder
Hampshire Build is a design-only practice. We don't build — we design, plan, and get your project through planning and building regulations so your chosen contractor can get straight to work.
That means no conflict of interest, no upselling, and a single fixed fee from day one. You stay in control of your build; we handle every drawing, every form, and every council submission.
- Fixed-fee packages from £1,350 + 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 free consultation and let's talk through your project.
No obligation · 30-minute call · Fixed fees from £1,350 + VAT