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Every OffPOD is completely Bespoke -
                   You Imagine it, We Create it

Steel Frame Modular House Extensions, Garden Annexes, and Garden Rooms

Built to Enjoy, Built to Last

OffPOD specialises in crafting state-of-the-art steel frame Modular Home Extensions, Granny AnnexesBespoke Garden Rooms, and commercial builds that are visually stunning and incredibly durable. Our innovative steel frame modular construction system, combined with the use of premium materials, allows us to deliver projects that are not only completed up to three times faster than traditional builds but also boast unrivalled structural integrity that will last for many years to come. With OffPOD, you can have peace of mind knowing that your garden annexe, modular home extension, or garden room will not only look great but also stand the test of time. Why wait four months for something which can be accomplished in four weeks?

At OffPOD, we stand apart from other suppliers by proudly manufacturing our steel frames in-house, utilizing the advanced Framecad 450iT machine. This unique capability allows us to provide a specialised 'Frame Only' service, catering to the specific needs of both commercial and residential clients. Explore our 'Steel Frame Supply' page to discover the comprehensive range of solutions we offer and learn how our tailor-made steel frames can elevate your project

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Steel frame construction is a modern and innovative solution for garden annexes and home extensions that offers numerous advantages over traditional building methods. One of the key benefits of using steel frames is the increased design flexibility they offer. Steel frames can be easily customized to match the existing architecture of your home and the surrounding environment, providing a seamless and integrated look.

From a technical standpoint, steel frames have a high strength-to-weight ratio, which means that they can support larger and heavier loads than other materials, such as wood. 

Another major advantage of steel frame construction for garden annexes and modular home extensions is its energy efficiency. Steel frames can be easily insulated to a high standard, which helps to reduce energy costs and maintain a consistent temperature throughout the year. This not only makes the annexe or home extension more comfortable for occupants but also contributes to a more sustainable and environmentally-friendly building.

Why Choose Us?


Turn-Key Solution

Foundations, build, planning permission, building regultions, electrics, plastering, light demolition work. We do it all!

Fully Insulated

To keep you cool in the summer & warm in the winter.

Premium Build

You are in the hands of a company that prides itself on a truly positive customer experience.

10 Year Structural Warranty

Providing you with peace of mind that our garden annexe are of exceptional quality, and that we are at hand if needed.

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Premium Build

Only the best materials will be used to guarantee the longevity of your building.

Low Maintenance

Each service and design uses carefully selected materials that require little to no maintenance.

Licensed &

£5,000,000 Public Liability

Insurance cover

Fully Bespoke

Our builds are 100% customizable in size & design.

See What Our Clients Say

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This is an image if a steel modular garden annexe frame before it has been fully built. There is a clear blue sky in the back ground and some trees
Introducing a Better Construction Method.

Our steel frame building modules offer a multitude of advantages over traditional building methods. Firstly, they are extremely clean and efficient. The modular design allows for pre-fabrication in a controlled environment, reducing on-site waste and minimizing the disruption to the surrounding area. This also helps to speed up the construction process, as the modules can be quickly and easily assembled on-site.

In terms of durability, steel frame buildings are incredibly strong and resistant to damage from extreme weather conditions, fire, and pests. The steel frame also provides a sturdy base for the building, which helps to reduce the risk of structural damage over time.

Another major advantage of our steel frame building modules is that they are insulated to the highest standards. This ensures that the building will maintain a consistent temperature throughout the year, reducing energy costs and making the building more comfortable for occupants. Additionally, the insulation helps to minimize noise transfer between rooms, ensuring that the building is peaceful and quiet.