BIM Level 2 efficiency savings quantified on office refurbishment for the first time

Shahida Rajabdeen
The recently released Innovate UK report confirms efficiency savings are generated through implementation of BIM level 2 compared to when BIM is not used

39 Victoria Street in London recently underwent a significant Cat B fit-out of its 11 floors to upgrade its previous office accommodation and generate a more efficient working space for its occupant, the Department of Health (DoH). Faithful+Gould, a member of the SNC-Lavalin Group and Willmott Dixon Interiors were the delivery team who had been instructed by DoH to implement BIM level 2 to deliver this project in accordance with the Government’s BIM mandate.

In April 2017 Innovate UK commissioned Pricewaterhouse Cooper to conduct a Benefits Measurement Methodology (BMM) report to measure the potential benefits from applying BIM level 2 to public-sector infrastructure/capital assets. The report is also supported by the new Centre for Digital Built Britain (CDBB)  at Cambridge University. CDBB are the new body taking forward the UK Governments programme for developing and championing digital innovation within the construction and asset  management sector, including the BIM Level2.   39 Victoria Street was one of the projects investigated due to the refurbishment works which invoked highly mature BIM level 2 processes from design through to operation. The Environment Agency’s Foss Flood Barrier in York was the second project reviewed.

This was the first report conducted within the UK with a sole focus on measuring the delivered benefits of BIM implementation. The report clearly evidences that employment of BIM Level 2 on a refurbishment project drives value for money.

The report looked at the expected benefits from using BIM level 2 over the lifetime of the improvements made which will be in use, or ‘lifetime of the intervention’.  For 39 Victoria Street the report identified:

  • PV benefit estimate of over £650k, equivalent to 3% savings in total from application of BIM Level 2 (against the without BIM cost)
  • BMAT score of 93% which indicates a high maturity of BIM implementation.

Foss Barrier also found savings. The largest saving on both projects was found to be made in asset maintenance.

The findings of this report is a very positive step with encouraging implementation of BIM Level 2 across refurbishment projects as well as new builds given refurbs are notoriously harder to demonstrate energy savings compared to a new build project. It’s demonstration of savings made, which unsurprisingly are in the early stages could change the way projects are managed in the future.

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