Transform your home with beautifully designed rear extensions built by trusted local specialists in Sutton Coldfield.

Modern kitchen with dark blue cabinets, marble island, and large windows.
Modern extension of a house with glass walls, outdoor seating area, and garden.
Modern house with a garden and outdoor seating area
Modern house with large glass windows and a patio area.
Modern living room with open-plan kitchen, large windows, and outdoor garden view.
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Transform Your Home With A Rear Extension

Looking to create more space without the stress of moving house?

At Four Oaks Builders, we design and build premium rear extensions in Sutton Coldfield that create modern open-plan living spaces tailored to your home and lifestyle.

Whether you want a larger kitchen, kitchen diner, family living space, or a complete ground floor transformation, our team delivers high-quality extensions with professional project management from start to finish.

We work across Sutton Coldfield, including Four Oaks, Mere Green, Boldmere, Streetly, and surrounding areas.

Why Homeowners Choose Rear Extensions

✓ Create open-plan kitchen living spaces

✓ Add natural light with bifold doors and roof lanterns

✓ Increase property value

✓ Avoid the cost and stress of moving

✓ Improve family living and entertaining space

✓ Modernise outdated layouts

✓ Make better use of garden-facing aspects

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Before
After

Our Most Popular Choice: Single Storey Rear Extensions

Single storey rear extensions are one of the most popular choices for homeowners in Sutton Coldfield looking to create more usable living space without the complexity of larger structural projects.

They are ideal for creating:

✓ Open-plan kitchen diners

✓ Modern family living spaces

✓ Garden-facing entertaining areas

✓ Bright interiors with bifold doors and roof lanterns

✓ Better flow throughout the home

Many single storey rear extensions can also fall under permitted development rights depending on the size and design, making them a more straightforward option for many homeowners.

At Four Oaks Builders, we specialise in high-quality single storey rear extensions designed around modern living, clean finishes, and practical layouts that transform how your home feels and functions.

Why Homeowners Choose Single Storey Extensions

✓ Often simpler than double storey projects

✓ Faster build times

✓ Less structural complexity

✓ Ideal for modern open-plan living

✓ Excellent return on investment

✓ More natural light

✓ Better connection to the garden

✓ Can increase property value significantly

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£0
Difference between quote and final invoice. Ever.
47+
Homes extended across Sutton Coldfield in the last 12 months
5★
Google rating
36
Years experience behind every project

We are currently accepting 2 new Extension projects for Q2 2026 — enquire now to secure your start date

BOOK YOUR FREE EXTENSION CONSULTATION
What our clients say

Last 12 months: 47 families. 47 happy endings.

★★★★★
“I had the pleasure of working with Danielle and George, a young couple full of warmth and excitement for their future. They were preparing their home to start a family. We began just after Christmas, battling some tough weather, but we overcame it all. Across six weeks, we transformed the space: a new kitchen, media wall, garage conversion, a remodeled downstairs, and a home office. I also gave them what I’d call their ‘driveway of dreams.’ With over 30 years of experience, I put everything into this project . Seeing them ready to build their future made every bit of the project worthwhile.”

— Justin Venables, Owner, Four Oaks Builders
Danielle & George Harwood | Extension Project & Cost
Garage Conversion, Full Renovation & Driveway Installation in Tamworth (Near Sutton Coldfield) | Project Value: £35,000 Garage conversion & internal Works) | £16,000 Driveway (Gifted at £5,000) Thinking About Your Own Project? If you’ve seen our work locally or heard about us and are planning a renovation, extension, or conversion — we’d be happy to help. Four Oaks Builders – Sutton Coldfield Built on experience. Known locally. Trusted for quality.
★★★★★
“I had the pleasure of working with this couple on this project, and we’ve kept in touch ever since, with them following my work on Facebook over the past 5–6 years. The space was originally an old-style conservatory, which we transformed into a new-style dining room extension in just three weeks. We built a new structure with a slate roof and a vaulted ceiling, creating a bright, open space flowing from the existing kitchen."

— Justin Venables, Owner, Four Oaks Builders
Rezan - Great Barr
Project Value: £60,000 Single-Storey Extension with Slate Roof & Vaulted Ceiling Thinking About Your Own Project? If you’ve seen our work locally or heard about us and are planning an extension, renovation, or outdoor transformation — we’d be happy to help.Four Oaks Builders – Sutton Coldfield Built on experience. Known locally. Trusted for quality.
★★★★★
" i had the privilege of working with Reece during an incredibly difficult time after losing his wife. This project became more than just a renovation — it was about creating a fresh start. We completed a full transformation, including a new kitchen, single-storey extension, new roof, and a redesigned driveway and patio. Every detail was handled with care, creating a space that feels strong, comfortable, and ready for the next chapter. With over 30 years of experience, this was a project that truly meant something beyond the build.”

— Justin Venables, Owner, Four Oaks Builders
Reece R
Full Home Renovation, Extension & Exterior Transformation in [Your Area]Project Value: £60,000 Kitchen Renovation, Single-Storey Extension & Full Internal Works New Roof Installation Driveway & Patio Installation Thinking About Your Own Project? If you’ve seen our work locally or heard about us and are planning a renovation, extension, or transformation — we’d be happy to help.Four Oaks Builders – Sutton Coldfield. Built on experience. Known locally. Trusted for quality.
single-storey-kitchen extension-sutton-coldfield

Sutton Coldfield Extensions

KITCHEN EXTENSIONS

Most families extending in Sutton Coldfield want the same thing — a kitchen that finally works. Open plan living, bi-fold doors to the garden, a space the whole family actually uses. We build kitchen extensions that transform how your home feels, from the inside out.

Typical investment: £40,000 – £90,000

  • Planning application managed end to end
  • Structural engineer included as standard
  • Bi-fold and aluminium door specialists
  • Underfloor heating and lantern roofs
  • Fixed price from detailed survey
DISCUSS YOUR KITCHEN EXTENSION
rear extension sutton coldfield

Sutton Coldfield Extensions

REAR EXTENSIONS

A rear extension gives you the space your family needs without touching the front of your home. Whether it's a single storey addition or a full wraparound, we design and build rear extensions that feel like they were always part of the house.

Typical investment: £35,000 – £80,000

  • Single and double storey options
  • Full planning or permitted development
  • Structural engineer included as standard
  • Matched brickwork and materials throughout
  • Fixed price from detailed survey

DISCUSS YOUR REAR EXTENSION

SINGLE STOREY EXTENSIONS DESIGNED AROUND MODERN LIVING

A professionally designed single storey extension can completely transform the way your home feels and functions.

Many homeowners in Sutton Coldfield are choosing to extend rather than move, creating larger kitchens, open-plan family spaces, dining areas, utility rooms, and seamless indoor-outdoor living areas without leaving the location they already love.

At Four Oaks Builders, we understand that every family uses their home differently. That’s why every extension project is carefully planned around your lifestyle, your property, and your long-term goals.

Whether you own a detached property in Four Oaks, a semi-detached home in Mere Green, or a traditional property in Lichfield, we build extensions that feel naturally connected to the existing home while dramatically improving space, light, and practicality.

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How Much Does A Single Storey Extension Cost In Sutton Coldfield?

The cost of a single storey extension in Sutton Coldfield can vary depending on the size of the build, structural requirements, specification level, glazing systems, roofing design, and interior finishes.

Smaller rear extensions may start from around £40,000 to £60,000, while larger open-plan kitchen extensions with roof lanterns, bespoke glazing, underfloor heating, and premium finishes can exceed £100,000.

At Four Oaks Builders, we provide detailed fixed-price quotations with complete transparency from the beginning, helping homeowners understand exactly what is included before work starts.

Our experienced team helps clients balance budget, functionality, and design to create extensions that not only improve everyday living but also add significant long-term property value.

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Trusted Across Sutton Coldfield

Four Oaks
Mere Green
Boldmere
Streetly

Premium Extensions Built Faster Without Compromising Quality

Less Delays. Less Stress. Faster Extension Builds.

Our single storey extension projects are completed significantly faster than the industry average thanks to our experienced team, efficient project management, and highly organised build process.

At Four Oaks Builders, we typically complete projects around 25% faster than many traditional building companies while maintaining exceptional craftsmanship and attention to detail throughout every stage of the build.

Permitted `development | planning permission

Do you need planning permission?Probably not.

Most single-storey extensions in Sutton Coldfield don't need a full planning application. Under permitted development rules, you can extend a detached home up to 8 metres from the rear wall, or a semi-detached up to 6 metres, without applying for planning permission.

We'll tell you within 24 hours whether your project needs planning permission or not — completely free, no obligation. All you need to do is tell us your address and what you're thinking of building. We'll check the rules, check your property's history, and give you a straight answer.

GET MY FREE PERMITTED DEVELOPMENT CHECK

Peace of mind, built in.We don't just say it. We put it in writing.

Why Four Oaks

You love your home.We make sure you love it even more.

Most families extending in Sutton Coldfield have heard the stories. The builder who disappeared after the deposit. The kitchen that took eight months instead of twelve weeks. The quote that doubled by the time the scaffolding came down.

We built Four Oaks to be the opposite of every one of those stories. Every promise we make is written into your contract. Every update happens whether you ask for it or not. And if something isn't right, we fix it before you ever have to ask.


"The weekly photo updates were a complete game-changer. We always knew exactly what was happening on site. They handed over three days early."
— Mark & Philippa Hassan, Extension · Streetly · £167,000

Promise 1:
Fixed-price contracts
The price we quote is the price you pay. We survey thoroughly, price honestly, and write it into a legally binding fixed-price contract. No variation orders. No surprises. No excuses.

Promise 2:
Dedicated project manager
From the day we break ground to the day we hand over, you have one person responsible for your project. One number to call. They know every detail and they're accountable for the outcome.

Promise 3:
Weekly photo updates
Every Friday without fail, a full photographic report of your extension's progress arrives in your inbox. You always know exactly what's happening, even when you're not home.

Frequently Asked Questions

Most single storey extension projects are completed significantly faster than the industry average thanks to our experienced team, efficient project management, and highly organised build process.

At Four Oaks Builders, many projects are completed up to 25% faster than traditional building companies while maintaining exceptional craftsmanship and attention to detail throughout every stage of the build.

Many extensions in Sutton Coldfield can be built under permitted development rights without requiring full planning permission. This depends on factors such as property type, extension size, and previous alterations to the home.

We provide a free permitted development check and can advise you on whether planning permission is required before any work begins.

In many cases, yes. Most homeowners remain in the property throughout the build process, although this depends on the scale of the project and the structural work involved.

We carefully plan projects to minimise disruption wherever possible.

A professionally designed extension can significantly increase property value while also improving how the home functions for modern family life.

Open-plan kitchen extensions and rear extensions are particularly popular with buyers across Sutton Coldfield and surrounding areas.

Yes. Every project is fully surveyed and quoted in detail before work begins. Our fixed-price contracts provide clarity and peace of mind with no hidden surprises.

How It Works

From first call to finished extension. We've refined our process across dozens of extension projects. Designed to keep you informed, in control, and completely confident at every stage.

1

Free Site Visit

We come to you. Walk around the property, listen to what you want, and give you an honest picture of what's possible and what it will cost. No sales pressure. Ever.

2

Design & Planning

We work with your architect or recommend one — producing full planning drawings to your exact specification. We manage the entire planning application or permitted development notification, handling every query and condition with Birmingham City Council on your behalf

3

Fixed-Price Quote

A detailed, fully itemised fixed-price contract covering every element of your extension. You review it at your own pace. Nothing starts until you're certain.

4

Build

Our dedicated project manager runs the site from day one. Every trade vetted, scheduled, and supervised. Weekly photo updates arrive every Friday without fail. You always know exactly what's happening, even when you're not there.

5

Handover

We complete our own snagging survey before we invite you to see the finished extension. Every item resolved before you walk in. Building regulations sign-off in hand. We remain your first call for 12 months after handover — and when you're ready for the next project, you know where we are.

6

Your Home, Transformed

Walk through the door. This is the moment everything was planned for — the space your family needed, built exactly as you imagined, in the home you already love. We'll leave you to enjoy it.

Areas we cover

Proudly serving the following locations
  • Sutton Coldfield
  • Four Oaks
  • Mere Green
  • Streetly
  • Aldridge
  • Lichfield
  • Tamworth
  • Solihull
  • Great Barr
  • Walmley
  • B74
  • B75
  • B76
  • B78
  • WS4
  • WS9

Start your project

Let's talk about your home.

Book a free, no-obligation consultation. We'll visit your plot or property, listen to your vision, and give you an honest, experienced picture of what's possible and what it will cost. No pressure. No obligation. Just straight answers from people who build homes for a living.

  • Completely free — no obligation whatsoever
  • We call within 1 working day
  • Site visit included at no cost
  • Fixed-price quote delivered within 7 days
  • Your details are never shared or sold
No obligation
Takes 2 minutes
We'll call within 1 working day
Your details are never shared or sold
Our Work

Homes that speak for themselves.

Sutton Coldfield Extension

Sutton Coldfield Extension

Large Single Storey Extension Open Plan · Contemporary 4 bed Sutton Coldfield £160,000 2023
Four Oaks Extension

Four Oaks Extension

Single Storey Extension With Sky Lantern · Glass Bi-Folds 5 bed Four Oaks £220,000 2023
Conservatory Conversion to Orangery

Conservatory Conversion to Orangery

Conversion Single Story Tipton £40,000 2025
Mere Green Renovation

Mere Green Renovation

External Render & Lighting, Internal Reconfiguration Mere Green £142,000 2023
Dorridge Extension

Dorridge Extension

Single Storey Extension Contemporary · Bi-Fold Doors · 3 bed Dorridge £110,000 2023
Hampton In Arden Extension

Hampton In Arden Extension

Contemporary Steel Frame Extension Front & Side Wrap · Sliding Doors · Bespoke Kitchen · Underfloor Heating 3 > 5 Hampton In Arden £200,000 2026