Garden Annexes & Modular Buildings in Gloucestershire

Annexe by Future Rooms designs, manufactures and installs SIP garden annexes and modular buildings throughout Gloucestershire. We supply annexes for homes, self-build annexe kits, school rooms, modular offices, sports buildings and other practical space solutions for schools, businesses, clubs and organisations.

Annexes Gloucestershire

Annexe by Future Rooms manufactures and supplies home annexes for customers across Gloucestershire. If you need extra, self-contained accommodation for family members, our one- and two-bedroom options offer flexible layouts, a choice of finishes, and practical features to suit day-to-day living.

Our garden annexes are built using Structural Insulated Panels (SIPs) to support strong thermal performance and faster build times. Options include underfloor heating and external decking, and every project is managed from planning support through to installation. Prefer a self-build route? We also supply flat-pack annexes that you (or your builder) can assemble on site.

Annexes For Home

Annexe Design and Planning

Every annexe project starts with the people who will use it. Whether you’re creating a private space for a parent, a grown-up child or visiting family, we’ll help you plan a layout that feels comfortable, practical and suited to your garden.

Our team can guide you through the early design choices, including the size of the annexe, room layout, access, services, exterior finish and optional features. Each building is made using Structural Insulated Panels, giving you a strong, well-insulated space that can be installed more efficiently than a traditional build.

We can also support the planning side of your project. Depending on the design and intended use, this may involve a Certificate of Lawfulness, Householder Planning Permission or a full planning application. We’ll help you understand the most suitable route before the project moves forward.

Once the design is agreed upon, your annexe is manufactured off-site and installed by our experienced team. This helps keep disruption to a minimum while giving you a high-quality living space designed for year-round use.

Modular Offices & Business Buildings

Our modular buildings are a flexible way to add space for offices, meeting rooms, staff facilities, storage and reception areas. Each building is designed around how you’ll use it, then manufactured off-site for a quicker installation and less disruption on your premises. The result is a durable, energy-efficient space without the delays of traditional construction.

Modular Commercial Buildings

Bespoke Sports Buildings

Annexe by Future Rooms specialises in crafting modular sports facilities using Structural Insulated Panels (SIPs). These pre-manufactured SIPs enable rapid construction and are ideal for various applications, including clubrooms, changing areas, storage, meeting spaces, offices, clubhouses, and pavilions. Each project benefits from a comprehensive structural design and third-party engineering appraisal.

Building with SIPs offers advantages such as reduced energy consumption, lower on-site expenses, and superior structural integrity. These lightweight, prefabricated structures provide an efficient and cost-effective solution for sports organisations seeking additional space.

Modular Sports Buildings

Modular School Buildings

A modular classroom or education building constructed with Structural Insulated Panels (SIPs) offers a faster and more economical alternative to traditional construction methods. It’s ideal when you need additional learning space quickly and with minimal disruption.

SIP modular school buildings can be configured for a wide range of uses, including classrooms, music rooms, breakout spaces and support areas for nurseries, primary schools, secondary schools, colleges and universities.

Our service includes bespoke structural design, independent engineering appraisal and professional installation, managed by our team from start to finish.

Find Out More

Installed: Bespoke Annexe Gloucestershire

Completed bespoke two-bedroom annexe for a customer in Wotton-under-Edge, Gloucestershire. It measures 6.8m x 14m, finished in western red cedar cladding with a standing seam roof.

Areas We Cover in Gloucestershire

We design, manufacture and install garden annexes, annexe kits and modular buildings across Gloucestershire, including Gloucester, Cheltenham, Stroud, Cirencester, Tewkesbury, Wotton-under-Edge, Dursley, Lydney, Coleford, Newent, Stonehouse and the surrounding Cotswold villages.

How to Order from Us

If you would like to find out more, discuss a project you’re planning or request a quote, please call us on 01452501455 or email us at [email protected].

Alternatively, please complete the form and we’ll be in touch.

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