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Bespoke Garden RoomsAward-Winning Designs15 Year WarrantyOver 18 years’ experience5 Star ReviewsFully Bespoke or Straight to SiteFriendly, Flexible and Capable Service
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Garden room project · Swift Unlimited

Home gym garden room

A 4m × 4.4m garden gym built from SIPs, over 2.5m tall and more than 2m from any boundary, with Larch cladding, gym mirrors, an exercise bar and TRX points.


Published 13 October 2019 · Updated 25 October 2026 · 2 minute read · Written by The Garden Room & Annexe Guide

4m x 4.4m home gym garden room by Swift
Swift Unlimited  4m × 4.4m garden gym

A home gym garden room is a practical way to bring fitness into your daily routine while enjoying a beautiful, dedicated space at home. If you’re seeking a tailored building designed to your exact needs, Swift Unlimited offers a wealth of experience and expertise. With an impressive portfolio of custom garden gyms, they specialise in creating high-quality spaces that reflect each customer’s unique requirements and design preferences.

At a glance

  • Size: 4m × 4.4m, taller than 2.5m for more headroom when exercising.
  • Planning: Set more than 2m from every boundary, which kept the extra height within Permitted Development.
  • Exterior: Larch cladding with aluminium-framed bi-folds, and long windows with top-opening sections for light and ventilation.
  • Inside: Plastered and decorated, with large mirrors, an exercise bar and TRX mounting points fixed to the walls, air conditioning and USB sockets.
  • Company: Swift Unlimited, who built it from BBA-certified SIPs.

Part of our garden gym guide →

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The brief

A tailored approach to garden gym design

Swift Unlimited completed a 4m x 4.4m garden gym that demonstrates their bespoke approach. The project was commissioned by a customer who, after researching various modular and bespoke garden room providers, chose Swift Unlimited for their superior quality and service.

While Swift Unlimited may not be the cheapest option, their use of premium materials, such as BBA-certified structural insulated panels (SIPs), ensures a long-lasting and efficient structure. Customers are further reassured by Swift’s 16 years of experience, an insurance-backed deposit guarantee scheme, and a ten-year warranty.

Home gym garden room design by Swift
The design: a 3D model of the gym with its bi-folds and tall side windows.
Planning

Customised garden gym features

Swift Unlimited prides itself on its ability to customise every element of a garden room’s design. For this project, the customer opted for a 4m x 4.4m building with a height exceeding 2.5m, maximising ceiling space for exercise while remaining within Permitted Development guidelines.

Positioned more than 2 metres from any boundary, the structure adhered to these rules, offering flexibility without compromising on functionality or style.

Home gym garden room by Swift
Larch cladding  with the bi-folds open
Materials

High-quality materials and finishes

Swift Unlimited works closely with customers to select the materials and finishes for their garden rooms. For this gym, Larch cladding was chosen for its durability, aesthetic appeal, and cost-effectiveness compared to Cedar.

The customer also selected powder-coated aluminium-framed windows and bifold doors for a sleek and modern look, favouring these over more common uPVC alternatives. Long windows with top-opening sections were incorporated to provide ventilation and natural light, essential for a comfortable workout environment.

Inside

Designed for fitness

Inside, the gym features a plastered and decorated finish with practical additions tailored for exercise. Large gym mirrors, an exercise bar, and TRX mounting points were installed to support various fitness routines. Swift Unlimited’s robust wall structures ensure these fixtures are securely mounted.

For year-round comfort, air conditioning was included, and USB-equipped power sockets were strategically placed for easy access to electrical equipment.

Interior of a home gym garden room by Swift
Inside the gym  mirrors, an exercise bar and air conditioning
Planning something similar?

Learn more about Swift Unlimited

Discover how Swift Unlimited can bring your garden room vision to life. Contact the Swift Unlimited team on 01625 875 588 or email support@swiftunlimited.co.uk. Visit www.swiftorg.co.uk to explore more examples of their stunning projects.

Visit Swift Unlimited More Swift Unlimited projects
More projects like this Garden gyms 10–20sqm garden rooms
Read the guides What garden rooms cost Permitted development Garden room ceiling height

Published 13 October 2019 · Photographs courtesy of Swift Unlimited.

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