We recently took on an exciting custom project: designing and building a block-built koi pond integrated directly into an existing outdoor garden room. With a generous capacity of 12,000 litres, dimensions of 4.2m long × 2.8m wide, and a focus on housing some truly impressive, top-quality koi, this feature combines luxury, functionality, and stunning visuals.

Key features of the build:

• Block construction for exceptional strength and longevity, perfectly suited to the garden room setting.
• A premium 1.2m wide × 700mm tall viewing window — strategically positioned for breathtaking underwater views of the koi swimming right up close, creating a living artwork visible from inside the garden room.
• Advanced filtration system featuring a high-performance drum filter paired with our reliable 600L IBC bio system— delivering crystal-clear water quality essential for the health and vibrant colours of large, high-end koi.
• Designed entirely using our professional 3D software to ensure precise integration, optimal flow, depth variation for koi comfort, and seamless aesthetics with the surrounding space.

This pond transforms the garden room into a serene, immersive space where you can relax while watching majestic koi glide by — the perfect blend of nature, engineering, and tranquility.