Precision Engineered, Bespoke House Extensions, Garden Rooms & Annexes

Vita Modular specialises in the design, manufacture and installation of genuinely bespoke modular Garden Rooms, Extensions and Annexes. Our precision-engineered systems deliver exceptional build quality, transparent pricing and market-leading value - without sacrificing design or performance.

AS FEATURED IN:
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Let us curate your perfect building

Our modular buildings, extensions & annexes offer unrivalled solidity, durability and overall performance throughout their life span with our trademark structural steel sub-frame. Our distinctive range of exterior cladding finishes and architectural embellishments is quite simply unparalleled. Right from the first enquiry, we take the time to understand precisely what you’re looking for and how we can deliver a space you will be proud of.
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Please contact us to arrange a visit to our Garden Room showroom in Coventry.
A modular house extension

House Extensions

Imagine a home addition that enhances your living space with minimal fuss. Our efficient off-site construction and rapid on-site assembly mean you can look forward to enjoying your new space with remarkably little disruption to your daily life. Furthermore, our bespoke designs are thoughtfully tailored to your existing property, ensuring a seamless blend that honours your home's unique architecture and your personal aesthetic.

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Garden Rooms

Check out our Modular Garden Room range

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Modular annexe

Annexes

Click to check out our Modular Annexes range

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Take a look at our Case Studies

At Vita Modular we take great pride in our work and find it incredibly rewarding hearing from our clients once they have had time to use and enjoy the new space we built for them. Below are just a few case studies, some with full video testimonials, of our recently completed projects - keep checking back as we're adding new case studies on a regular basis...

Bespoke Dual Garden Rooms Maximise Home and Work Life

Modern Garden Room

Contemporary Garden Room in St Albans

Garden Room in Harpenden

Modern Home Extension Warwick

Contemporary One Bedroom Annexe - Croydon

5m x 3m Extension in Cheltenham

Garden Office - Muswell Hill, London

Garden Office - Stratford Upon Avon

3m x 3m Extension in Cirencester

5m x 3m Extension in Cheltenham

3m x 3m Extension in Cirencester

7m x 4m Extension in Stratford Upon Avon

Extension and Refurbishment in Rutland

Bespoke Dual Garden Rooms Maximise Home and Work Life

Garden Office - Stratford Upon Avon

Contemporary Garden Room in St Albans

Modern Garden Room

Garden Room - Physiotherapy Studio in Lichfield

Modern Home Extension Warwick

Holywell Road, Abergavenny, Wales

Garden Office - Muswell Hill, London

Garden Room in Harpenden

Contemporary One Bedroom Annexe - Croydon

House Extension in Wood Green, London

Garden Room in Windsor

Isle of Dogs Rear Home Extension

Bespoke Modern Home Extension in Bedford

Garden Studio, Norfolk

Modern Home Extension in Surbiton

Garden Office - Rugby

Home Extension and Refurbishment in Woking

Garden Studio - Barnes, London

Wrap Around House Extension - Greenwich, South East London

Bespoke Garden Annexe in Royston

Our Modular Building Prices Are All-Inclusive

We pride ourselves on transparency, so that’s why all of our modular garden building prices are refreshingly inclusive with no hidden extras. Unlike most, our price is for a comprehensive turn-key project solution that includes everything from foundations to flooring and everything in between.

Installation on-site is quick, clean and efficient due to our precision off-site manufacturing solutions that allow us to assemble your modular building with minimal noise, dust and disruption. No cranes or heavy lifting equipment are required to complete the installations. Every component of your modular building has been carefully designed, enabling us to install in any location with even the most limited access. 
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Ready to bring your dream space to life?
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See our Case Studies
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Download Brochure

Ready to bring your dream space to life?

Please kindly note that our minimum order value for a typical 3m x 3m (9 SQ/M) size modular extension is £30,000 inclusive.

We would love to hear about your modular building requirements and create a space you will be proud of. Please complete our enquiry form below where one of our team will contact you usually within 24 hours of your enquiry.

Please contact us to arrange a visit to our showroom or nearest completed project to you

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benefits

Our modular buildings are designed, engineered and built to perfection

10 Year Warranty

We’re so confident in the longevity and performance of our structural steel frame modular buildings that we offer an industry-leading 10 year guarantee as standard.

Lead time

We are proud to offer an industry-leading guaranteed 6 week lead time from the date of order.

Bespoke

Our distinctive range of exterior cladding finishes and architectural embellishments is quite simply unparalleled. There are no limits to the space we can create for you.

One Price; No Hidden Extras

Our price includes everything from delivery, installation, foundations, doors & windows, painted walls, electrics, lighting and flooring, to name just a few.

Built to UK Building Regulations

Our modular buildings comply with all aspects of current UK building regulations, so you not only have complete peace of mind that your extension is built to last but you also have a space that can be comfortably used all year round.

Designed & Built in the UK

We use the most advanced modular construction technology to precision craft every modular building at our Warwickshire production facility.

How our Design & Build Process Works

Step 1
ENQUIRY
Complete our customer enquiry form so we can fully understand your modular building requirements, and one of our dedicated team members will contact you to arrange a design consultation. Please contact us to arrange a visit to our Garden Room showroom in Coventry.
Step 2
PROPOSAL
We will send over a proposal that includes our terms and conditions, technical drawings, agreed payment plan details, and offer you a fixed installation date commitment for your modular building.
Step 3
SITE SURVEY
One of our expert project managers will take a few measurements at a pre-arranged site survey and make all considerations to ensure the installation process will go as smoothly as possible.
Step 4
MANUFACTURE
Our team will begin the manufacturing process at our Warwickshire production facility to precision craft your modular building and book in our installation team for the agreed installation date.
Step 5
INSTALLATION
We will contact you around a week before the agreed installation date to confirm any final arrangements that need to be made. Our install team will arrive on the morning of your install date and complete all works within the agreed timeframe. Our standard garden rooms are typically installed within 5-7 working days for example.

Frequently Asked Questions (FAQs)

Where do you install your buildings?

We can install our garden rooms, extensions and annexes anywhere in mainland England.

What is the largest garden room that you can build?

We can create any shape, size or specification of garden room to suit your bespoke requirements.

Do I need to get planning permission or building regulations for a Vita garden room?

Planning permission is not normally required as our garden buildings fall under permitted development. Most houses, even in conservation areas and areas of outstanding natural beauty (AONB), have permitted development rights. Flats and listed buildings have no permitted development rights, so will always need planning permission.  Please see the link to the government website below. Don’t worry though, if you do require planning permission we can arrange this for you as part our bespoke turn-key solution.

Can I have a toilet and/or kitchen in my garden building?

Yes we can install a toilet and kitchen in your garden room without any issue at all although this will typically require building regulations approval. We can organise this for you as part of our turn-key solution please speak to us for more information.

Are your garden rooms warm enough to use in winter?

Yes, all of our garden room are designed to current building regulations and therefore are perfectly suited to be used all year round unlike most conservatories or orangeries.

INSIGHTS & BLOG

Our Latest Blog Posts for inspiration

Annexes for Over-65s: Independent Living Without Leaving the Family Home
January 25, 2026
Got a London Terrace? Here’s the Real Deal on Side-Return Extensions
December 27, 2025
Thinking of Building a Granny Annexe in Your Garden? Your Questions Answered
December 24, 2025
View More

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We want to make sure you have all the information you need about Vita Modular.

If you didn't find what you were after, or if you have any questions, please don't hesitate to get in touch.

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