House Extension in Cranleigh
For your House Extension in Cranleigh, KT5 Construction delivers smarter, cost-effective solutions across Surrey. From concept to handover, we combine careful planning, transparent pricing, and value-engineering to create the space you need without overspending.
Communication is at the heart of every build. We keep you informed at each stage so your vision stays on track and your extension is delivered on time and on budget.
What We Do
Building Construction
New Builds, Extensions, Conversions, Renovations
General Building
Property Maintenance, Handyman Service, Decorating
Design
Planning, Design, Project Management, Quality Checking
House Extension in Cranleigh: What to Expect from Specialists You Can Trust
Why Choose KT5 Constructions for Your Cranleigh Extension?
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Local know-how – We understand Cranleigh’s housing mix—period cottages, post-war semis, bungalows and modern estates—and tailor designs that maximise space while respecting your street’s character.
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End-to-end delivery – One accountable team handling concept, permissions, build and finishing.
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Fixed costs, clear programme – No surprises—just an agreed scope, a transparent schedule, and regular progress updates.
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Value engineering – Smarter specifications that stretch your budget without compromising safety, quality or longevity.
Tailored Solutions Across Cranleigh & Surrounding Villages
We design and build extensions that suit local property types and lifestyles:
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Single-storey rear kitchen/dining extensions
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Side-return or wrap-around layouts to open up family living space
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Double-storey additions for extra bedrooms and bathrooms
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Loft conversions and dormers to unlock under-used attic space
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Garden rooms/orangeries for home office, studio or leisure use
Every project is carefully planned to deliver quality, value and compliance in established residential streets.
Our Value-First Approach
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Budget clarity – Fixed-price contracts to protect against hidden extras
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Specification smarts – Recommendations that balance aesthetics, performance and lifecycle costs
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Transparent comms – Detailed programmes, site updates and clear payment schedules
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Aftercare mindset – We build for long-term performance, not short-term fixes
Understanding the Extension Process
Initial Consultation & Free Design Offer
We start with a home or video visit to understand your goals, budget and timeline. Choose KT5 Constructions as your builder and we’ll include free architectural/structural design to get your scheme moving from day one.
Planning & Permission
We handle permitted development checks, planning applications, party wall coordination and building control approvals—streamlining the paperwork so you don’t have to.
Construction & Project Management
Your dedicated site manager coordinates trades, inspections and quality checks—from groundwork and structure to electrics, plumbing and finishes—so your extension is delivered safely, neatly and to the highest standard.
Client Testimonials
“You made it so simple” – Just wanted to say thank you for making what I thought would be a difficult process much easier than I had imagined.
Thank you for my brand new house! The refurbishment and attention to detail makes it feel like a brand new house, but without the expensive cost of moving.
Just wanted to thank you for the work carried out to my new bathroom, I will definitely be in touch shortly to talk about my proposed kitchen extension.
Why Cranleigh Homeowners Trust KT5 Constructions
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Proven experience across Cranleigh and wider Surrey
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No-surprise pricing and clear payment schedules
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Rated for punctuality, service and attention to detail
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Smart, long-term solutions that add real value
Your Vision, Crafted Into Extra Space
Ready to plan a House Extension in Cranleigh that’s on time and on budget? KT5 Construction is here to help. Book your free consultation to discover how we can save you time, money and stress—while building the home you’ve always wanted.
Frequently Asked Questions
How much does a Cranleigh house extension cost?
As a guide:
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£1,800–£2,500 per m² for standard builds
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£2,800+ per m² for higher-spec finishes
We provide fixed pricing and can phase works to suit your budget.
Do I need planning permission for an extension in Cranleigh?
Many single-storey rear extensions fall under permitted development (subject to size and design limits). Wrap-around or double-storey schemes often require planning consent. We’ll advise the best route and handle the applications.
How long does an extension take?
Typical timeframes (after approvals and design):
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Single-storey rear: ~8–12 weeks
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Wrap-around/double-storey: ~12–20+ weeks
Programme depends on scope, structure, access and finishes—your proposal will include a clear schedule.
Our Services
House Extensions
KT5 Construction provides professional house or Property Renovations Services in Ash, tailored to your unique needs. Whether you’re expanding your kitchen or creating an open-plan living area, we deliver high-quality results.
Kitchen Refurbishment
At KT5 Construction, we are specialists in kitchen refurbishment in Surrey and surrounding areas, delivering bespoke designs that enhance your living space and add value to your home.
Loft Conversions
At KT5 Construction, we specialise in creating stunning loft conversions in Surrey that add space, value, and style to your home. From dormer loft conversions to luxury loft designs, our expert team handles every detail with professionalism and precision.
Groundworks
At KT5 Construction, we pride ourselves on being the go-to groundwork Company in London, delivering top-quality services for residential and commercial projects.
Bathroom Design & Installation
Your bathroom should be more than just functional—it should reflect your personal style and offer a space to unwind. At KT5 Construction, we specialise in Surrey bathroom design and installation, delivering tailored solutions that blend elegance, practicality, and luxury.
Property Refurbishment
Our Ewell Road Surbiton Project showcases the full spectrum of our refurbishment expertise. By managing every detail, from architectural consultation to final finishes, KT5 ensures each element meets the highest standards.
New Build Homes
As a trusted New Build Builder in Surrey, KT5 Construction has been at the forefront of creating bespoke, high-quality homes designed to meet modern living standards.
Architecture & Design
Expert architectural planning & creative design solutions for residential and commercial projects in Surrey & London.
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