MITRE WHARF 4D
What if we added one floor?
Test one change before it becomes a cost, a delay or a claim. This film is the visual answer: what one added floor actually asks of the project.
The change, revealed
This is the visual answer to the question: one added floor, revealed against the existing condition.
The same building, before and after
Drag the divider to move between the existing condition and the proposed added floor. The governed figures sit on either side, shown as recorded.
Left of the divider: existing. Right of the divider: proposed.
EXISTING
- PACKAGE TOTAL, 17 PACKAGES
- £7,236,810DIRECTEDStructure package summary, 17 packages
- BCIS BENCHMARK
- £2,110–£2,350/m²VERIFIEDBCIS functional benchmark for flats and apartments
- TENDER PRICE INDEX
- 226VERIFIEDBCIS tender price index
ADDITIONAL
- PROGRAMME
- +15 WORKING DAYSVERIFIEDGoverned RC-frame programme baseline
- GIFA ADDED
- 1,222 m²VERIFIEDGoverned area schedule, added levels
- SPACE EFFICIENCY
- 80.98%VERIFIEDSpace efficiency on the added area
- STRUCTURE
- £598,780DIRECTEDWithin governed subcontractor range £487–£494/m²
- STRUCTURE AS A PROPORTION OF BENCHMARKED COST
- 22.0%DIRECTEDStructure over benchmarked cost, added storey
- NET SELLABLE
- ≈ 990 m²DERIVEDAdded GIFA at the stated space efficiency
What the change touches
The consequence view: layers separated to show what the change touches.
The causal trace
One intervention → governed consequences.
Evidence and decision gate
Every figure is shown with its status and a plain description. Nothing here is arithmetic; the values are recorded literals.
| Metric | Figure | Status | Note |
|---|---|---|---|
| EXISTING | |||
| PACKAGE TOTAL, 17 PACKAGES | £7,236,810 | DIRECTED | Structure package summary, 17 packages |
| BCIS BENCHMARK | £2,110–£2,350/m² | VERIFIED | BCIS functional benchmark for flats and apartments |
| TENDER PRICE INDEX | 226 | VERIFIED | BCIS tender price index |
| ADDITIONAL | |||
| PROGRAMME | +15 WORKING DAYS | VERIFIED | Governed RC-frame programme baseline |
| GIFA ADDED | 1,222 m² | VERIFIED | Governed area schedule, added levels |
| SPACE EFFICIENCY | 80.98% | VERIFIED | Space efficiency on the added area |
| STRUCTURE | £598,780 | DIRECTED | Within governed subcontractor range £487–£494/m² |
| STRUCTURE AS A PROPORTION OF BENCHMARKED COST | 22.0% | DIRECTED | Structure over benchmarked cost, added storey |
Before you commit, review:
- SOURCE
- What evidence is this based on?
- SCOPE
- What is included and excluded?
- BASIS
- Which assumptions and benchmarks apply?
- CAPACITY
- Can the project absorb the consequence?
AWAITING ENGINEER APPROVAL
One change. Every consequence. Before you commit.