House Extension in Oxted
Create more space the smart way with KT5 Construction. We deliver well-planned, cost-effective House Extension in Oxted projects from first idea to final handover—combining thoughtful design, transparent pricing and practical cost-saving choices so you get the space you need without stress or overspend. Clear communication is central to how we work: we keep you informed at every stage to make sure 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
Oxted Extensions: What You Can Expect from a Well-Run Build
Why choose KT5 Construction for your Oxted extension
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Local insight: From character cottages and inter-war semis to modern infill homes, we tailor designs that unlock space while respecting your street scene.
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End-to-end delivery: One accountable team for surveys, design, permissions, build and finishing.
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Fixed scope, clear programme: Agreed specification, transparent timeline and regular progress updates—no guesswork.
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Value engineering that lasts: Smarter specs that stretch your budget without compromising quality, safety or longevity.
Extensions We Deliver in Oxted & Nearby
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Single-storey kitchen/dining extensions to open up family space
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Side-return and wrap-around layouts for period and mid-century homes
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Double-storey additions for extra bedrooms, bathrooms or a principal suite
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Loft conversions and dormers to maximise attic potential
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Garden rooms/orangeries for flexible office, studio or leisure space
Every project is planned for quality, value and compliance in established residential streets.
Our Value-First Method
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Budget clarity: Fixed-price contracts to protect against hidden extras
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Specification smarts: Recommendations balancing aesthetics, performance and lifecycle cost
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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
How Your Oxted Extension Happens
Consultation & Free Design Offer
We begin with a home or video visit to understand your goals, budget and timeline. Choose KT5 as your builder and we’ll include free architectural/structural design to move your scheme forward from day one.
Planning & Permissions
We handle permitted development checks, planning applications, party wall matters 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, cleanly and to a high 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 Oxted Homeowners Choose KT5 Construction
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Proven local experience across Oxted and wider Surrey
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No-surprise pricing with clear, staged payments
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Rated for punctuality, service and attention to detail
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Practical, long-term solutions that add real value
Ready to Talk?
Let’s plan a House Extension in Oxted that’s on time and on budget. Explore KT5 Construction and book your free consultation to discover how we can save you time, money and stress—while building the space you’ve always wanted. Learn more about our approach to a House Extension in Oxted.
Frequently Asked Questions
How much does an Oxted house extension cost?
Costs vary by size, design complexity, and specification. As a guide:
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£1,800–£2,500 per m² for well-specified standard builds
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£2,800+ per m² for high-spec finishes or complex structures
We provide fixed pricing and can phase works to suit your budget.
Do I need planning permission for an extension in Oxted?
Many single-storey extensions fall under Permitted Development (subject to rules on height, projection, materials and previous additions). Larger schemes, double-storey additions or properties in sensitive areas typically require planning consent. We’ll confirm the route and handle applications for you.
How long does an extension take?
Typical timelines (subject to scope and season):
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Single-storey: ~10–16 weeks
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Double-storey / structural reconfiguration: ~16–28 weeks
Your programme will be agreed up-front and updated throughout the build.
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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