More than 70 staff working at the Richmond-based design consultant have been laid off by administrator RSM Tenon.

David Saffin, the firm’s senior partner, said: “The partners’ decision to appoint administrators reflects the very difficult trading conditions currently being faced by consultants and contractors alike in the construction industry and the poor outlook for the industry in the near term.

“ZBP partners are saddened by the impact this decision will have on loyal and long-standing members of staff and their families.”

The firm was established back in 1958 and specialised in the design, monitoring and commissioning of mechanical, electrical and public health building services for new build and refurbishment schemes.

Its current projects include Brookfield’s New South Glasgow Hospital scheme.

ZBP also provided expert advice on acoustics, sustainability, low carbon solutions, thermal simulation and building energy performance.

Jill Sandford, director at the Nottingham office of RSM Tenon, said: “ZBP recently lost four significant contracts, which would have secured turnover of around £6m.

“The current economic climate has seen fierce competition leading to substantially under-priced tenders in order to buy in work.

“Attempts have been made to sell the business as a going concern but unfortunately this has not been successful and this resulted in all employees being made redundant.

“The administrators will work with the partners and key members of staff to ensure as little disruption possible to the firm’s clients.”