The studies found that:
Concrete is a heavyweight material so foundations to concrete buildings tend to be more expensive. This is more than offset by buildability and performance savings
Cladding can represent up to 25% of the total construction costs. The shallower floor and services zones of concrete solutions provide lower floor-to-floor height and therefore lower cladding costs
Flat concrete soffits allow easy sealing and fire stopping at partition heads. This can save up to 10% compared to downstand beam construction. Even when rectangular concrete downstand beams are used savings can be made over profiled downstand steel beams.
A premium of 2% on M&E costs can be saved using a concrete flat slab soffit compared to a profiled slab soffit
The fabric energy storage and thermal mass efficiency of concrete buildings minimise or can even remove the need for air-conditioning plant. This reduces or removes ongoing plant operating and maintenance costs
Time is money. Generally, insitu concrete has a lead-in time of 8 - 10 weeks compared with 12 – 14 weeks for structural steel. A faster start on site means a quicker return on the capital investment
Programme time can be faster due to reinforced concrete’s built-in robustness, vibration and sound performance, fire resistance and floor resilience removing the need for additional finished and follow-on trades.