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Thinking About your Dream Home Extension? Discover What’s Possible With Paul Martyn Construction
Real budget guidance
Clarity before you invest
Speak directly with Paul
Speak directly with Paul
Clarity before you invest
Real budget guidance
EV Discounts Available
Transform the Home You Love Into the Space You Need...
Your home doesn’t need to be bigger — it needs to work better. We help families across Surrey reimagine their homes with high-quality extensions, lofts and renovations that are designed to last.
Rear, wraparound extensions
kitchen extensions
Loft conversions
double-storey builds
Full-house renovations
Bespoke new builds, start to finish
Commercial fit-outs
Extensions
Extensions that add space and value.
New Builds
We build homes from the ground
Loft Conversion
We turn lofts into liveable space.
Browse Our Oak Frame Garages
Choose from our expert-designed oak garages or create a custom build, tailored for storage, living, or work – all crafted for your Surrey home.
1-Bay Oak Frame Garage
Compact Design: Perfect for single-vehicle storage or small spaces.
from £4,550
Supplied & installed
2-Bay Oak Frame Garage
Spacious and Practical: Designed
From £9,000
Supplied & installed
Oak Garage, Room Above
Maximise Space: Combines secure vehicle storage with a versatile upper floor.
From £25,000
Supplied & installed
Oak Garage, Room Above
Maximise Space: Combines secure vehicle storage with a versatile upper floor.
From £25,000
Supplied & installed
What Homeowners Say...
Cobham Kitchen Extension Project
"very professional builders"
"courteous and always tidied up at the end of the day and very responsive to any changes and very friendly we missed them when they went." - Julian
Farmhouse Extension & Renovation Thursley
"I highly recommend them"
“Paul was involved from start to finish. No stress, no mess, just a job done properly. We’d recommend him in a heartbeat.” - Hannah
Let’s Talk About Your Home
What We’ll Cover on Your Free Call:
Early design ideas tailored to your space
Realistic budget ranges based on similar Surrey projects
Honest advice on what’s worth building — and what’s not
A clear plan, with no pressure to commit
Home Extensions
Add space, flow and value — without the cost and stress of moving.
Rear extensions
Side-return & wraparound extensions
Kitchen extensions & open-plan layouts
Double-storey builds
Seamless garden integration
We build carefully considered, high-quality extensions that create light, flow, and room to live.
Rear extensions
Side-return
Double-storey builds
Wrap around
Loft Conversions
Lofts are often the smartest way to add space — without extending out or compromising your garden.
Rear dormers
Hip-to-gable conversions
Mansard extensions
En-suite lofts & home offices
Full roof structure design + build
Make the most of your unused space and add value where it counts.
Velux loft
L-shaped Dorma
Dorma
Mansard
Hip-to-gable
House Renovations
When the layout’s wrong or the space just doesn’t work, a smart renovation can make all the difference.
Full ground-floor reconfigurations
Structural alterations & layout redesigns
Finish upgrades & insulation
Bespoke joinery and storage
Clean, respectful project delivery
We reconfigure, redesign and refurbish homes across Surrey to create spaces that feel calm, connected, and built for real life.
New Builds
Starting from scratch? We build homes with character, charm, and quality that lasts.
Bespoke design & build packages
High-end materials and modern tech integration
Main contractor on premium developments (e.g. Aspen Homes, Pewley Hill)
Ground-up project management
Clear milestones, total transparency
As a low-volume builder, we focus on doing things properly — with careful planning, considered design, and a clean, well-run build from start to finish.
Our Process, How It Works
We Make It Simple, Clear and Stress-Free
Step 1
Initial Call with Paul
Tell us your goals. We’ll explore what’s possible and whether it’s a good fit.
Step 2
Budget Guidance
We’ll provide real-world insights on design, budget and planning — so you can move forward with clarity.
Step 3
Design + Build
If you decide to move ahead, we’ll guide you through every stage — with no handovers and no surprises.
Download Our Free Brochure & see our prices
Download the our Price List to get trade prices on your oak-frame building kit.
We will send a copy to your email
Why Clients Choose Paul Martyn Construction
We don’t just build, we take care of everything, properly. From the first call to the final handover, we focus on quality, clarity, and communication.
Clear pricing
We break down your build cost by each stage of the process.
Star to finish
In-house team handles design, build, and handover.
Surrey's Experts
100+ homes built, extended or renovated across Surrey.
High End Builds
Main contractor for premium projects like Pewley Hill.
Frequently Asked Questions
Do I need planning permission?
Not always. Many extensions fall under permitted development, but we’ll advise you during your consultation and handle applications if needed.
How much does a typical extension cost?
Most of our projects fall between £100k–£250k, depending on size, structure and spec. We’ll give you realistic ranges based on similar local builds.
How long will the build take?
Timelines vary, but most extensions take 10–16 weeks. We’ll give you a clear schedule — and stick to it.
OUR HAPPY CLIENTS
Brett Graham, 28
ARCHITECT
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Rosie Hanson, 24
REAL ESTATE ASSOCIATE\
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Shawn Mattews, 35
PROJECT MANAGER
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OUR OFFERS
Diagnostic Service
50$
Interior and exterior lighting
Outlets and receptacles
Switches
Electric panels and circuit breakers
Care Plan
125$
Includes Diagnostic service +
Monthly check
Recycling
Support center
Event support
200$
Includes Diagnostic service +
Equipment rental
Consultancy
Lighting and wiring in and around your event space
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