Thanet Earth — Seventh High-Tech Glasshouse
Thanet Earth has completed its seventh commercial glasshouse at Birchington in Kent, expanding one of the UK's largest controlled-environment horticultural complexes. The project added 6.5 hectares of illuminated tomato-growing space to the existing site, increasing its total commercial growing area from 45 to 51.5 hectares. The new glasshouse, known as TG7, is designed to produce approximately 150 million additional tomatoes each year. Construction began in March 2025, and the first tomato harvest from the new facility took place in April 2026.[1]
Project facts
Location: Thanet Earth, Birchington, Kent
Operator: Thanet Earth
Status: Completed — first harvest April 2026
Investment: £20 million originally announced
Additional growing area: 6.5 hectares (65,000 m²)
Planned additional tomato production: approximately 150 million tomatoes per year
Construction and facilities
The project was delivered by Dutch horticultural contractor BOM Group, part of Atrium Agri, which had previously built three other glasshouses at Thanet Earth. The new 65,000 m² structure incorporates climate-control and screening systems, including dehumidification equipment integrated into its gable ends to help maintain suitable growing conditions throughout the year.
The gable facing the Thanet Way was reinforced to withstand exposed winds, with roadside tree planting providing additional screening and wind protection.
Production capacity
Before the extension, Thanet Earth's six glasshouses had approximately 45 hectares of growing space, with a reported annual output of 400 million tomatoes, 33 million cucumbers and 24 million peppers. TG7 increased the site's growing area by approximately 14%, with a planned additional output of 150 million tomatoes annually.
The company now describes seven glasshouses and estimates site-wide production at approximately 550 million tomatoes annually. A separately audited full-year production figure for TG7 has not been established.
Technology and resource management
Thanet Earth's wider complex uses controlled light, temperature and humidity alongside hydroponic growing systems, integrated energy infrastructure and rainwater management. TG7 includes newly installed climate-control, screening and dehumidification equipment.
These site-wide systems should not be assumed to deliver identical efficiency gains in each building. As new operational data become available, the relevant measures will be changes in actual crop output, growing productivity, electricity use per kilogram, water recirculation and performance improvements attributable to installed equipment.
Why it matters
TG7 is a completed expansion of industrial-scale British food-production capacity. Its additional growing area, climate control, lighting and dehumidification equipment support a larger year-round tomato crop. It also provides a fixed location from which to track future engineering developments and measured changes in output and resource efficiency.
Map information
The marker represents the Thanet Earth complex; the position of the seventh glasshouse within it is not confirmed. [2]
Timeline
2023
Planning permission for the seventh glasshouse recorded by the operator.
March 2025
Construction begins on TG7.
20 May 2025
Operator announces £20 million construction programme, new 6.5 hectares and projected 150 million additional tomatoes annually.
Late 2025–early 2026
Construction and growing-system installation proceed; November 2025 was an initial target, not a confirmed handover.
April 2026
Thanet Earth records first tomato harvest from the seventh glasshouse.
2026
BOM Group confirms delivery of the completed structure and integrated climate systems.