Jupiter Construction was appointed to deliver the construction and fit-out of a new Staff Welfare building at Harlow Carr for the Royal Horticultural Society. The project was part of the RHS’s ongoing investment in improving staff facilities and operational infrastructure.
The scheme involved the erection of a modern, energy-efficient building constructed using SIP (Structural Insulated Panel) technology, together with full internal fit-out and associated external works. The building is located within the Horticultural Service Yard at the end of Cragg Lane, positioned outside the boundaries of the public RHS gardens, allowing the works to be undertaken without disruption to visitors.

The Royal Horticultural Society is the UK’s leading gardening charity, dedicated to enriching lives through plants, gardens and horticulture. The Harlow Carr site supports a wide range of horticultural operations, and the new Staff Welfare building forms part of the RHS’s commitment to providing high-quality facilities that support staff wellbeing, sustainability and operational efficiency.
Staff Welfare Building (New Build)
Construction Within an Operational Service Yard
Although the site location is outside the public garden boundary, it remains a live operational environment. Jupiter Construction carefully planned site logistics and sequencing to ensure ongoing horticultural operations could continue safely alongside the works.
Sustainability and Energy Performance Requirements
The use of SIP panels and the installation of an air source heat pump required precise coordination to meet performance expectations relating to thermal efficiency, airtightness and long-term sustainability, while ensuring compliance with the project specification.


Jupiter Construction successfully delivered a high-quality Staff Welfare facility that meets the Royal Horticultural Society’s operational and sustainability objectives. The project was completed through close collaboration with Appleyard & Trew and the RHS project team, ensuring clear communication, effective programme management and consistent quality throughout.
The completed building provides a modern, energy-efficient environment that enhances staff wellbeing and supports the day-to-day operations of the Harlow Carr site, reflecting Jupiter Construction’s commitment to delivering thoughtfully planned and well-executed projects.