Room Outside: Quality Garden Rooms & Annexes for Your Home
Quality Garden Rooms & Annexes
Beautifully Designed Extra Living Space
Exceptional quality garden rooms and annexes: from home offices and gyms to independent living accommodation. Traditional oak or modular – five times faster and more efficient.
Call us anytime on 01243 538999 – David our digital assistant will take a few details so the right specialist can follow up personally.
Price From
£25,000
Build Time
2-4 Weeks (Modular)
Energy Efficiency
5x UK Average
Guarantee
10 Years
From £25,000
Garden Room or Annexe?
While the terms are sometimes used interchangeably, there is an important distinction: a garden room is usually a versatile space in the garden — perfect as a home office, gym, or retreat. An annexe is a more substantial structure, often designed as independent living accommodation for a family member, growing teenager, or visiting guests.
At Room Outside®, we specialise in creating both — from standalone oak-framed garden rooms to fully designed annexes that can either connect to your home or sit independently in the garden. We now blend our new modular extension units with premium materials such as aluminium, uPVC, or oak, giving you more flexibility than ever.
For decades we’ve crafted oak buildings with warmth and character. Now we combine this heritage with state-of-the-art modular technology.
5x Faster Build
Factory-engineered precision with no cutting on site. Screw pile foundations mean your annexe is completed five times faster than traditional methods.
5x Energy Efficient
Modular systems are five times more energy efficient than the average UK home, keeping your space comfortable year-round while lowering bills.
Weather-Independent
Modules arrive ready to assemble, with no weather delays. Your build stays on schedule regardless of rain or cold.
Premium Materials
Choose from aluminium, uPVC, or oak finishes. The flexibility to match your home’s style perfectly.
Choose Your Style
Traditional or Modular – The Choice is Yours
Whether you prefer timeless craftsmanship or modern efficiency, we have the perfect solution.
Standalone Oak Garden Rooms
Traditional mortise & tenon joineryPlastered walls & interior finishTimeless character & warmth12-20 week build time
Modular Garden Rooms
Factory-engineered precision2-4 weeks on site5x energy efficientScrew pile foundations
Fully Designed Annexes
Independent living accommodationKitchen & bathroom optionsConnected or standaloneFull planning support
Garden Room Office: A Dedicated Workspace
With the rise of remote working, creating a practical and professional workspace has become a priority for many homeowners. A standalone garden room or a garden room extension could be the ideal solution for creating a dedicated workspace at home.
Having a separate room, whether completely detached or partitioned by doors, provides the quiet, professional environment needed to achieve the perfect work-life balance. Additionally, your garden room can often be designed for dual purposes, maximising its practicality and ensuring it meets all your needs while enhancing your home’s functionality.
Work-life balance: Step out of your house and into your office – the physical separation helps maintain boundaries between work and home life.
Expert Answers
Garden Rooms & Annexes FAQs
Common questions about costs, planning, and installation.
A garden room is a versatile space in the garden — perfect as a home office, gym, or retreat. An annexe is a more substantial structure, often designed as independent living accommodation for a family member, with kitchen and bathroom facilities.
Quality garden rooms typically start from £25,000 for basic specifications, rising to £60,000+ for fully insulated annexes with kitchen and bathroom facilities. Room Outside offers bespoke options from £25,000 fully installed.
Many garden rooms fall under Permitted Development Rights if they meet size and position criteria. Annexes with sleeping and cooking facilities usually require planning permission. Room Outside provides full guidance with every project.
Using our modular system, garden rooms can be completed five times faster than traditional builds – typically 2-4 weeks on site. Traditional oak builds take 12-20 weeks depending on complexity and design.
Yes. Garden rooms are ideal for home offices, providing a quiet, professional workspace separate from the main house. They can be designed with insulation, power, data, and lighting to suit your work needs.
Our modular garden rooms use innovative screw pile foundations – no concrete, no mess, and no digging. This makes installation faster and less disruptive to your garden.
Create Your Perfect Garden Room
Whether you need a home office, gym, annexe for family, or simply a peaceful retreat, we’ll design and build the perfect space for your garden.
Call us anytime on 01243 538999 – David our digital assistant will take a few details so the right specialist can follow up personally.
bespoke garden room, conservatory, modern garden rooms, garden rooms
Frequently Asked Questions
How to create garden rooms?
Creating garden rooms involves designing a functional space that complements your home, selecting high-quality materials, and utilizing modern modular technology alongside traditional craftsmanship to ensure durability and aesthetic appeal.
How much do garden rooms cost UK?
The cost of garden rooms in the UK varies significantly based on size, design, and materials, typically ranging from £10,000 to £30,000. Custom features and finishes may further influence the final price.
What are garden rooms?
Garden rooms are versatile outdoor structures designed to enhance living spaces, serving various purposes such as home offices, studios, or leisure areas, while seamlessly blending modern modular technology with traditional craftsmanship for quality and efficiency.
Why are garden rooms so expensive?
The cost of garden rooms can be attributed to their high-quality materials, skilled craftsmanship, and modern modular technology used in their construction, all of which ensure durability and a premium living experience.
How much do garden rooms cost?
The cost of garden rooms varies based on size, design, and features, typically ranging from £10,000 to £30,000. Customizations may influence the final price, so it's best to consult with us for a tailored quote.
How to build garden rooms?
Building garden rooms involves selecting a suitable design, obtaining necessary permits, and using quality materials. Consider modular construction for efficiency, and ensure proper insulation and utilities for a comfortable living space.
How to decorate garden rooms?
Decorating garden rooms involves creating a cozy and functional space that reflects your style. Use natural materials, incorporate plants, and choose versatile furniture to enhance comfort and aesthetics while maximizing the room's purpose.
How to design garden rooms?
Designing garden rooms involves considering the intended use, size, and style that complements your home. Focus on functionality, natural light, and outdoor integration to create a versatile and inviting space.
What materials are best for garden rooms?
The best materials for garden rooms include high-quality timber for structure, insulated panels for energy efficiency, and durable roofing materials to withstand weather conditions. These choices ensure a comfortable and long-lasting living space.
How to maximize space in garden rooms?
Maximizing space in garden rooms involves utilizing multifunctional furniture, incorporating vertical storage solutions, and ensuring proper layout design. Consider open shelving and foldable items to create a more spacious and organized environment.
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