GlaxoSmithKline
Stevenage, Security Lodge
About
Highline have now completed the construction of a new security lodge for one of our client’s based in Stevenage. The new lodge has been constructed within the footprint of an existing overflow carpark, the whole project included the early surveys, landscaping, new services trenching, drainage and installation of all new utility services. The buildings foundation was constructed using a pilling and raised concrete raft system. The main concrete slab was poured in a day due to the design calling for a 450mm thick waterproof monolithic slab. The main building structure was formed from CLT and Glulam timber panels and beams. The building was manufactured in Austria and brought to the UK via 7 lorries. The structure was constructed within 4 weeks using a mobile crane. Once built 3 sides of the external of the building was overclad in Parkelx rainscreen cladding and Schuco curtain walling. The rear of the building has a living wall with over 5000 plants covering the back of the building. The roof construction consists of a green roof and Photo Voltaic panels. Both the roof and living wall has been installed with an automatic irrigation system. The internal of the building remains predominately exposed CLT, with acoustic treatment to the walls and flooring completing a simple architectural finish. All the M&E and life safety services were designed around the precut service holes created during the CLT build in Austria. The car park and landscaping around the building have been completed with new external lighting, CCTV, 30 car parking spaces, EV charging, and Cycle storage.
Challenges & Solutions
During the intrusive survey period and early landscaping works, various unknow services, which included redundant sheet pilling shoring formwork were found. Redesigned and diversions works were carried out to reduce the costs of removing them, as this would have slowed down the new attenuation tank install and carpark works that deals with the main roof’s rainwater collection. As the building construction works, work out to be three quarters of the overall programme, this left a relatively short period for the architectural and services installation works to take place. To assist this period, most of the internal packages were prefabricated off site and installed in a short on site period.






