House Extension in Cranford
Create the space you’ve been wishing for—without the stress. As one of West London’s trusted extension specialists, KT5 Construction delivers a smarter, cost-effective way to expand your home in Cranford. From early ideas to final handover, we combine careful planning, transparent pricing, and sensible cost-saving strategies so you can achieve the extra room you need on time and on budget.
At KT5, communication is everything. We keep you fully informed at every stage so your vision stays on track.
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 Cranford: What to Expect from Local Specialists
Why Choose KT5 for Your Cranford Extension
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Local know-how – We understand Cranford’s property mix—1930s semis, post-war terraces, and bungalows—and design extensions that maximise space while respecting your street’s character.
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End-to-end delivery – One accountable team handling design, permissions, build and finishing.
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Fixed costs, clear programme – You’ll get an agreed scope, a transparent schedule, and regular progress updates—no surprises.
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Value engineering – We recommend smarter specifications that stretch your budget without compromising safety, quality or longevity.
Looking for ideas and guidance on a House Extension in Cranford? We’ll help you choose the right route—permitted development or planning—then deliver it cleanly and efficiently.
Popular Extension Types in Cranford & Nearby
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Single-storey rear kitchen/dining extensions for bright, open-plan living
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Side-return and wrap-around layouts to unlock underused side space
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Double-storey additions to create extra bedrooms and bathrooms
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Loft conversions and dormers to maximise your attic footprint
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Garden rooms/orangeries for flexible home office or leisure space
Every project is planned around your home’s structure, neighbours, and street scene to deliver quality, value and compliance in established residential areas.
Our Value-Led Delivery
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Budget clarity – Fixed-price contracts and clear payment stages
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Specification smarts – Balanced recommendations on aesthetics, performance and lifecycle costs
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Transparent comms – Detailed programmes, site updates and single-point contact
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Aftercare mindset – We build for long-term performance, not short-term fixes
Your House Extension, Step-by-Step
Discovery Visit & Complimentary Design Kick-Off
We begin with an in-home or video consultation to clarify your aims, budget, and timeframe. If you appoint KT5, we include complimentary architectural and structural design to get your scheme moving from day one.
Planning, Permissions & Compliance Sorted
From permitted development checks and full planning submissions to party wall matters and building control, we manage every approval—streamlining the paperwork so you don’t have to.
Build Delivery & Dedicated Site Management
A named site manager coordinates trades, inspections, and quality control—from groundworks and structure to electrics, plumbing, and final finishes—ensuring a safe, tidy build delivered to the standard you expect.
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 Cranford Homeowners Choose KT5
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Local experience across Cranford and wider West London
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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
Create the Space That Fits Your Future
Ready to plan a House Extension in Cranford 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 Cranford 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 Cranford?
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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