Major housing client slams contractors over asset data

19 May 2019 | By Neil Gerrard

The panel discussing the ‘golden thread’

The head of design at a major housing association has blasted contractors for their inability to provide information about the buildings they have constructed.

Jack Ostrofsky, head of design and technical at Peabody, took part in a panel discussion at the Construction Manager/BIM+ Digital Construction Summit last week on the digital implications of the ‘golden thread’ advocated by Dame Judith Hackitt, in her independent review of Building Regulations and fire safety.

He recalled how, when working for another housing association, he was involved in eight latent defect claims against contractors over social housing blocks that were found to contain dangerous aluminium composite (ACM) cladding in the wake of the Grenfell Tower disaster.

Ostrofsky said: “Not a single one of the contractors for those eight buildings had accurate records. In many cases, the ACM cladding was substituted. There were discussions with their lawyers and my lawyers about whether it was legal or not but once I opened up the buildings, I had no problem proving latent defect claims because the workmanship in every case was appalling. The main contractor generally doesn’t know what the subcontractor is putting on the building that I am buying.”

Acknowledging that Peabody was “ahead of the curve” as a client, Ostrofsky nonetheless expressed concern about the construction sector as a whole.

He added: “We are all aware of the golden thread, but what is missing is the people in the supply chain to populate that information. Since about 2010, we have had a dramatic increase in the complexity in residential construction – and there are things that we don’t know that we don’t know.”

Scott Sanderson, partner – technical & BIM at PRP Architects, said: “I do think the industry is massively challenged to translate good process concept into day-to-day behaviour, and a new culture of quality. I am really hungry to see the conversation around quality of information, clarity of brief, clarity of process and quality control delivered and becoming meaningful in our projects.”

Andrew Pryke, managing director of BAM Design, also agreed that there was an “obvious need” for the golden thread. He explained how BAM was advancing its digital information capabilities, developing a systems operation and maintenance ‘golden thread’.

This was recently put it into place when it retrofitted Wharfedale Hospital in Leeds, which BAM had built 10 years previously with no data. The new system allowed BAM to provide accurate, detailed information to satisfy fire inspectors who later visited the hospital, Pryke explained.


This is another sad case of a Client absolving themselves of responsibility & blaming the Main Contractor & his Sub-Contractors instead; a perverse trend in construction today! How pathetic & naive that a Client doesn’t know what his building is constructed with ‘till he does a latent defects inspection! Construction today is ever more complicated with new methods & materials appearing almost daily. So, to ensure that their buildings are constructed to conform to their specification & that any substitutions are also approved & compliant, including workmanship, an ‘old fashioned’ process known as ‘SUPERVISION’ must be employed, either by the Architect directly or an appointed Clerk of Works. Problem is today, that Clients believe they can save money by not employing either & relying on the Main Contractor & his Sub-Contractors; this is naive at best. Then when there is a problem, they land all the responsibility & remedial costs onto the Main Contractor, which also results in delays & additional costs for the Client! Mistakes will happen. So, fail to plan, plan to fail! Clients, you only have yourselves to blame!

Richard Moore. MCIOB, 21 May 2019

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