Since moving onto the former Pyestock site in the middle of February last year, Brown and Mason, the contractor appointed by Pyestock mega-depot developers M&G Real Estate and Prologis, has been demolishing old buildings on the renamed Hartland Park.
The 119-acre site – where gas turbines and jet engines were developed and made until its closure in 2000 – is ready for development as an employment park. A Hartland Park spokesman said now the demolition work is complete, the site is "attracting interest", although no deals have yet been signed.
Counting Brown and Mason employees, sub-contractors and visiting consultants, 488 people have worked 129,967 hours since the contract started. The work was scheduled to finish by the end of April.
Lee Brown, project director at Brown and Mason, said the demolition had been a "complex project".
He added, the company divided the site – where Concorde’s jet engines were tested – into 11 zones and carried out demolition systematically. Noise and vibration levels were monitored and kept as low as possible within the constraints of the work.
Dust was controlled by on-site systems with levels monitored and assessed regularly.
More than 500,000 tonnes of processed concrete from the buildings was used to fill pits and other voids on the site, while more than 38,000 tonnes of metal and other material was removed for re-cycling or safe disposal.
Around 96% of waste materials on the site have been recycled.
“We kept noise, vibration and noise levels under constant review for the duration of the contract,” said Mr Brown. “We were aware that the technical work carried out by our neighbours Vector Aerospace and QinetiQ is sensitive to dust and noise and were careful to ensure their operations were not affected by the demolition programme.”
To protect trees from potential damage, Brown and Mason erected temporary fencing around the entire perimeter as well as around clumps in the centre of the site.
Working with Natural England and a team of ecology consultants, the demolition company also successfully moved a small population of bats to a more suitable location in surrounding woodland.
With the help of specialist contractors, Alaska Environmental, patches of acid grass were relocated to an area on the site where they can be protected and managed.
More than 12,000 people objected to the Pyestock scheme, warning it would wipe out the green ‘lung’ between Fleet and Farnborough and create thousands of lorry movements on over-stretched roads.
However M&G Real Estate and Prologis said it would create up to 1,600 jobs and clean the site. It is also investing £3.5million in improving transport facilities nearby.