Park Home Extensions & Garden Rooms
Running out of space in your park home? Transform cramped quarters into the spacious living you deserve with a bespoke extension or garden room designed specifically for park home construction.
15+
YEARS EXPERIENCE
2-4
WEEKS BUILD TIME
BS3632
COMPLIANT
FREE
QUOTES & SURVEYS
What Makes Park Home Extensions Special?
Park homes aren’t built like traditional houses, and that’s precisely why they need specialists who understand their unique construction. The lighter structure, specific connection points, and particular materials all require careful consideration that most builders simply don’t have experience with.
We’ve spent over fifteen years working exclusively with park homes across the South East. That means we know exactly how to match your existing cladding, align roof lines seamlessly, and ensure floor levels transition naturally between your original home and the new space. The result? An extension that looks like it was always meant to be there—not something bolted on as an afterthought.
Types of Extensions We Build
Whatever space you’re dreaming of, we’ve probably built it before. Here’s a look at the most popular options our park home customers choose.
Garden Rooms
Self-contained structures in your garden area. Perfect for home offices, hobby rooms, or guest accommodation with that essential separation from the main living space.
Attached Extensions
Connect directly to your park home through a new doorway. Ideal for dining rooms, larger lounges, or additional bedrooms when you want everything under one roof.
Conservatories & Sunrooms
Modern designs with extensive glazing, proper insulation, and ventilation systems. Forget the draughty conservatories of old—these are genuinely usable year-round.
Porches
Practical entrance areas for muddy boots and hanging coats. They add security, improve kerb appeal, and keep the weather at bay when you’re fumbling for keys.
“We needed extra space for a home office and Urban Stone designed exactly what we wanted. The extension matches our park home perfectly—you’d think it had always been there. Professional from start to finish, and we couldn’t be happier with the result.”
— David and Helen R., Hertfordshire
Meet Matt
When Matt started Urban Stone Developments back in 2008, he had a simple idea: treat every park home like it was his own family’s. Fifteen years on, that philosophy hasn’t changed one bit.
“Park homes are special,” Matt explains. “They’re not just buildings—they’re retirement dreams, fresh starts, escapes from the city. When someone asks us to add an extension, they’re trusting us with something that really matters to them.”
Having completed hundreds of extensions across the South East, Matt and his team understand the quirks of park home construction better than most. They know which materials work best, how to match existing cladding seamlessly, and why rushing the sub-base is never worth it.
“We’re not the cheapest option out there,” Matt admits. “But we turn up when we say we will, we do the job properly, and we’re still here fifteen years later if anything needs attention. That counts for something.”
Family-Run Since 2008
Hundreds of Projects
Park Home Specialists
Clear Guarantees
Why Choose a Park Home Extension?
More Living Space
Transform a cramped park home into spacious living. Add the room you’ve been missing without the upheaval of moving.
Year-Round Comfort
Full insulation with Celotex or Kingspan materials. Proper heating options including underfloor systems for cosy winters.
Seamless Integration
Matched cladding, aligned roof lines, and natural floor transitions. Your extension will look like it was always there.
Quick Construction
Most extensions completed in 2-4 weeks. Pre-fabricated timber frames mean faster assembly and less disruption.
BS3632 Compliant
All work meets British Standards for residential park homes, ensuring structural integrity and thermal performance.
Planning Help
We handle planning applications and park owner approvals. One less thing for you to worry about.
Complete Service
Design, construction, electrics, plumbing, and decorating—all handled by our teams. No coordinating multiple trades.
Clear Pricing
Itemised quotes with no hidden extras. You’ll know exactly where your money goes before work begins.
How Your Extension Comes Together
We’ve refined our process over fifteen years to deliver quality results with minimum fuss. Here’s what to expect.
01
Initial Consultation
We visit your park home for a no-pressure chat about what you need. We’ll measure up, discuss design ideas, and assess what’s feasible within your budget.
02
Detailed Quote
You’ll receive a fully itemised quotation showing exactly where your money goes. No vague estimates that balloon once work starts.
03
Design & Planning
We create proper designs and specifications. If planning approval is required, we handle the paperwork with your local authority and park owner.
04
Construction
Our teams arrive on time, work methodically, and keep the site tidy. Most extensions take 2-4 weeks depending on size and complexity.
05
Finishing Touches
Internal fit-out including electrics, plumbing where needed, heating installation, and decorating to your preferences.
06
Handover
We clean up properly, hand over your extension ready to use, and remain available should any questions arise once you’ve settled in.
Serving the South East Since 2008
We work throughout London, Berkshire, Essex, Kent, Surrey, Sussex, and Hertfordshire. Most of our projects are within an hour of our base, which keeps travel costs reasonable and means we can respond quickly if anything needs attention after completion.
If you’re outside these areas but not too far away, get in touch anyway—we occasionally take on projects further afield if the logistics work.
London
Berkshire
Surrey
Sussex
Kent
Essex
Hertfordshire
Common Questions About Park Home Extensions
Do I need planning permission for a park home extension?
It depends on your particular circumstances. Many park home extensions fall within permitted development rights, but this varies based on the extension’s size, your park’s own rules, and local authority requirements. Your park owner will almost certainly need to approve any alterations—this is typically written into your pitch agreement. During our initial consultation, we’ll assess your situation and advise on what permissions you’ll need. If planning applications are necessary, we handle all the paperwork.
How long does a park home extension take to build?
Most extensions are completed within 2-4 weeks, depending on size and complexity. We use timber frame construction with pre-fabricated elements, which means better quality control and faster on-site assembly. Larger projects with more complex specifications may take a bit longer—we’ll confirm exact timelines in your quotation.
What materials do you use for park home extensions?
We use timber frame construction that’s lightweight enough not to stress your park home’s foundations, yet strong and durable. External finishes include uPVC cladding, composite materials, or texture-coated options depending on what matches your existing home. Roofing usually comprises lightweight tiles such as Metrotile or Decra. Inside, we insulate with Celotex or Kingspan, combined with double or triple-glazed windows. All work complies with BS3632 standards for residential park homes.
How much does a park home extension cost?
Costs vary considerably based on size, specification, and complexity. A modest porch will obviously cost less than a substantial garden room with full insulation, heating, and high-spec finishes. We provide free, detailed quotations after our initial site visit, with everything itemised so you can see exactly where your money goes. We’d rather give you a realistic quote upfront than surprise you with additional costs later.
Will the extension match my existing park home?
Absolutely—that’s one of our specialities. We design each extension to complement your existing park home, both structurally and visually. That means matching cladding styles, roof lines, and window designs so the new space feels like it was always meant to be there. Inside, we ensure floor levels align properly and doorways flow naturally between your original rooms and the new addition.
What payment terms do you offer?
Our payment terms are straightforward. We typically require a deposit to secure your build slot, with staged payments as work progresses, and a final balance upon completion. We don’t ask for full payment before we’ve delivered what was promised. All payment stages are clearly outlined in your quotation.
Request Your Free Quote
“The team finished our sunroom last month and we’re delighted with it. Professional from start to finish, and the quality of work is excellent. Already recommended them to our neighbours.”
Margaret T.
Surrey
Transform Your Park Home Today
More space, better living, expert craftsmanship. Get in touch for a free consultation and see how we can help transform your park home with a beautiful extension or garden room.