House Extension in Epsom
Create the extra space you need—without the drama. As one of Surrey’s trusted extension specialists, KT5 Construction delivers a smarter, cost-effective way to expand your home in Epsom. From first sketches to final handover, we plan carefully, price transparently, and value-engineer your build so you can achieve more with your budget.
At KT5, communication isn’t an add-on—it’s how we work. You’ll get clear updates 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
Epsom Extensions, Delivered the Right Way
Why Choose KT5 for Your Epsom Project
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Local know-how – From Edwardian homes to 1930s semis and bungalows, we design around Epsom’s character and planning context to maximise space without clashing with the street scene.
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One accountable team – Design, permissions, build, and finishing handled end-to-end by us.
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Fixed costs, clear programme – Agreed scope, transparent schedule, and regular progress reporting—no surprises.
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Value engineering – Smart specifications that stretch your budget while protecting quality, safety, and long-term performance.
Extensions We Regularly Build in Epsom & Nearby
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Single-storey rear kitchen/dining extensions
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Side-return and wrap-around layouts to unlock family space
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Double-storey additions for extra bedrooms and bathrooms
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Loft conversions and dormers to maximise the roof volume
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Garden rooms and orangeries for flexible work/leisure space
Our Value-Led Method
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Budget clarity – Fixed-price contracts and staged payments
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Specification smarts – Balanced choices for aesthetics, performance, and lifecycle cost
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Transparent comms – Detailed programmes and site updates you can rely on
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Aftercare mindset – We build for durability and future maintenance, not quick fixes
How Your Epsom Extension Moves From Idea to Keys
Consultation & Free Design Offer
We start 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 manage permitted development checks, full planning submissions, 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 through MEP, plastering, and finishes—delivered safely, tidily, and to the standard your home deserves.
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 Epsom Homeowners Trust KT5 Construction
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Proven experience across Epsom and wider Surrey
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No-surprise pricing with transparent payment schedules
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Rated for punctuality, service, and attention to detail
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Long-term, value-adding solutions that improve daily living
Let KT5 Construction Plan Your Space
Ready to get moving on a House Extension in Epsom that’s on time and on budget? KT5 Constructions can help with smart design, clear pricing, and a build you’ll love living in. Book your free consultation and discover how we save you time, money, and stress—while creating the space your home is missing.
Frequently Asked Questions
How much does an Epsom house extension cost?
Budgets vary with size, specification, and access. 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 premium finishes and complex structures
We provide fixed pricing and can phase works to suit your budget.
Do I need planning permission for an extension in Epsom?
Many single-storey rear extensions fall under Permitted Development, subject to limits on height, depth, and materials. Larger works (e.g., double-storey, street-facing changes) typically require planning permission. We’ll confirm your route and handle all submissions.
How long does an extension take?
Typical timeframes (after approvals and design):
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Single-storey: ~8–14 weeks
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Double-storey/complex builds: ~12–24 weeks
Programme depends on scope, access, and finishes. We’ll agree a clear schedule before works begin.
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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