The Chavasse Park soil solutions project stands as one of Freeland Horticulture’s most technically demanding and innovative achievements. As part of the landmark Liverpool ONE development, Chavasse Park was designed to be a vibrant 20,000 m² green space built directly above a 3,000-space underground car park and shopping complex. This unique rooftop environment presented complex challenges, from weight restrictions to structural engineering requirements, and required carefully designed soil blends to ensure success.
Traditional topsoils, while nutrient-rich, were far too heavy for use in rooftop construction of this scale. For a park intended to host lawns, shrubs, groundcover plants, and mature trees, the soil needed to be lightweight yet structurally stable. The soils also had to provide the right balance of water retention and drainage, ensuring plant roots could thrive without the risk of compaction or waterlogging. These constraints made the project a true test of soil science and innovation.
Working closely with the construction team, Freeland’s in-house soil scientist reviewed a range of options to create a tailored approach. The final Chavasse Park soil solutions consisted of a lightweight construction fill topped with specially blended soils that met strict chemical and physical performance requirements. By engineering soil blends with precise nutrient levels and particle size distribution, Freeland was able to deliver the stability required for structural safety while also supporting the growth of a diverse range of plant species. The custom blends allowed for the successful planting of lawns, shrubs, and trees across the park, creating a thriving landscape in a location where standard soils could never have been used.
One of the key advantages of the bespoke approach was the cost-saving it delivered. Freeland’s innovative soil engineering eliminated the need for large volumes of expensive imported lightweight rooftop soils. Instead, over 500 tons of specially designed blends were supplied, combining locally sourced materials with scientific expertise. This not only reduced costs for the developer but also made the project more sustainable by limiting the need for specialist imports.
The Chavasse Park soil solutions supplied by Freeland continue to support one of the UK’s largest and most successful urban rooftop parks. By overcoming structural challenges and ensuring long-term soil fertility, the project has provided a valuable green space in the heart of Liverpool. Today, Chavasse Park is home to expansive lawns, ornamental planting, and mature trees, offering both ecological and social benefits to the city.
The project demonstrates how science-led soil innovation can deliver practical, cost-effective, and sustainable results, even in the most challenging urban environments.
Freeland Horticulture’s role in providing the Chavasse Park soil solutions highlights the company’s unique ability to combine soil science expertise with practical engineering. By creating lightweight, structurally robust, and nutrient-rich soils, Freeland helped transform a rooftop structure into a thriving green landmark. Chavasse Park remains a showcase of how innovative soil specifications can unlock opportunities for sustainable landscaping in modern urban developments.
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