- Home
- News
All the latest updates on building safety reformRegulations latest
- Focus
- Comment
- Programmes
- CPD
- Building the Future
- Jobs
- Data
- Subscribe
- Events
2024 events calendar
Explore now
Building Awards
Keep up to date
- Building Boardroom
- Previous slide
- 1 of 3
- Next slide
| Overall programme comparison (including procurement and lead time) | ||
| Building A | Lead time (weeks) | Time duration (weeks) |
| Concrete-frame options | 4 | 64-66 |
| Steel-frame options | 12 | 70 |
| Building B – short span | ||
| Concrete-frame options | 6 | 82-86 |
| Steel-frame options | 16 | 91-93 |
| Building B – long span | ||
| Concrete-frame option | 7 | 83 |
| Steel-frame option | 18 | 95 |
| Cost comparison (short-span options) | ||||
| Building A: Overall building costs | Steel composite | Steel Hollowcore | Steel Slimdek | |
| £/m2 | £1,467.71 | £1,495.08 | 1,533.73 | |
| Concrete flat slab | £1,459.56 | 0.60% | 2.40% | 5.10% |
| Building A: External cladding costs | Steel composite | Steel Hollowcore | Steel Slimdek | |
| £/m2 | £218.66 | £224.15 | £218.87 | |
| Concrete PT flat slab | £214.68 | 1.90% | 4.40% | 1.90% |
| Building A: Internal planning costs | Steel composite | Steel Hollowcore | Steel Slimdek | |
| £/m2 | £33.20 | £33.74 | £33.15 | |
| Concrete PT flat slab | £30.10 | 10.3 | 12.1 | 10.1 |
| Building B: Overall building costs | Steel composite | Steel Hollowcore | Steel Slimdek | |
| £/m2 | £1,700.76 | £1,744.80 | £1,768.49 | |
| Concrete flat slab | £1,676.23 | 1.50% | 4.10% | 5.50% |
| Building B: External cladding costs | Steel composite | Steel Hollowcore | Steel Slimdek | |
| £/m2 | £361.53 | £376.72 | £362.52 | |
| Concrete PT flat slab | £354.95 | 1.90% | 6.10% | 2.10% |
| Building B: Internal planning costs | Steel composite | Steel Hollowcore | Steel Slimdek | |
| £/m2 | £21.59 | £22.24 | £21.64 | |
| Concrete PT flat slab | £17.83 | 21.10% | 24.10% | 21.30% |
| Overall Costs | ||||||||
| Building A | Flat Slab | RC Hybrid | PT Flat Slab | Composite | Hollowcore | Slimdek | ||
| Construction cost in £/m2 | £1,459.56 | £1,477.33 | £1,477.38 | £1,467.71 | £1,495.08 | £1,533.73 | ||
| Overall programme in weeks | 64 | 66 | 65 | 70 | 70 | 70 | ||
| Extra/saving (+/-) in financial costs @ 7.25% p.a. | £0.00 | £4.12 | £2.06 | £12.27 | £12.51 | £12.83 | ||
| Adjusted construction cost in £/m2 | £1,459.56 | £1,481.45 | £1,479.44 | £1,479.98 | £1,507.59 | £1,546.56 | ||
| Building B | Flat Slab | RC Hybrid | PT Flat Slab | Composite | Hollowcore | Slimdek | PT Band Beams | Cellular Beams |
| Construction cost in £/m2 | £1,676.23 | £1,702.59 | £1,687.92 | £1,700.76 | £1,744.80 | £1,768.49 | £1,722.20 | £1,724.36 |
| Overall programme in weeks | 83 | 86 | 82 | 93 | 91 | 91 | 83 | 95 |
| Extra/saving (+/-) in financial costs @ 7.25% p.a. | £0.00 | £7.13 | -£2.35 | £23.72 | £19.46 | £19.72 | £0.00 | £28.85 |
| Adjusted construction cost in £/m2 | £1,676.23 | £1,709.72 | £1,685.57 | £1,724.48 | £1,764.26 | £1,788.21 | £1,722.20 | £1,753.21 |