Price every instructionthe week it lands.

Cellect is a set of agents that sit on a development’s cost plan, programme and record. They price every change the week it is issued, keep the four teams who cause those changes writing to one ledger, and show you where the job will land instead of where it landed a month ago.

Forecast out-turn
£48,165,000
as at week 36
Movement since datum
−⁠£35,000
13 postings against 6 packages
Weeks outside the band
6
band ±£250,000 on £48,200,000

Forecast deviation from datum, week 0 to week 36

peak +⁠£382,000 at week 15
+⁠£250,000datum−⁠£250,000
inside the bandoutside itbeyond ±£250,000

Façade re-spec opened the excursion in week 11 on INS-041; Groundworks let below allowance closed it in week 17 on LET-003. Of 13 postings, 2 were made with the forecast standing outside the band.

Where every posting landed

Six packages let against a £48,200,000 datum, and the 13 instructions, lettings and released sums posted against them since. Fills compare along a row, each against that trade’s own largest movement.

Movement by package and period, in thousands of pounds. Rows are the six packages, columns the six periods of 6 weeks to week 36. The row totals and the column totals both foot to −⁠35 thousand.
PackageW16W712W1318W1924W2530W3136Net movementNet
SUB Substructure, groundworks+⁠64−⁠502+⁠186−⁠252
FRM Frame, upper floors−⁠26+⁠52+⁠26
ENV Envelope, façade+⁠310−⁠64+⁠246
MEP Mechanical, electrical+⁠72−⁠141−⁠69
FIT Internal fit-out−⁠87+⁠43−⁠44
PRE Preliminaries, site−⁠38+⁠96+⁠58
All packagesAll+⁠26+⁠284−⁠430+⁠99−⁠153+⁠139−⁠35
thousands of pounds, week 1 to week 36rows and columns foot to −⁠35, residual 0

How much of the job is bought

£29,798,000 certified to week 36, 62% of the forecast out-turn. Substructure is all but closed out at 95%, while internal fit-out has run 19% of its £7.31m commitment.

Certified in the period£6.40m peak
£7.50m
W6W12W18W24W30W36
Certified against forecast out-turn62%
£48.16m
W6W12W18W24W30W36
SUB
Substructure, groundworks
95%of £5.89m
FRM
Frame, upper floors
84%of £9.91m
ENV
Envelope, façade
61%of £11.67m
MEP
Mechanical, electrical
46%of £8.89m
FIT
Internal fit-out
19%of £7.31m
PRE
Preliminaries, site
73%of £4.51m
Deviation from datum in thousands of pounds, for programme slip of 0 to 12 weeks against envelope rate movement of -4 to 8 per cent. 24 of 49 combinations exceed the £250,000 band. The scheme currently stands at −⁠35 thousand.
Programme slip-4%-2%0%+2%+4%+6%+8%
+0w−⁠217−⁠126−⁠35+⁠56+⁠147+⁠238+⁠329
+2w−⁠153−⁠62+⁠29+⁠120+⁠211+⁠302+⁠393
+4w−⁠89+⁠2+⁠93+⁠184+⁠275+⁠366+⁠457
+6w−⁠25+⁠66+⁠157+⁠248+⁠339+⁠430+⁠521
+8w+⁠39+⁠130+⁠221+⁠312+⁠403+⁠494+⁠585
+10w+⁠103+⁠194+⁠285+⁠376+⁠467+⁠558+⁠649
+12w+⁠167+⁠258+⁠349+⁠440+⁠531+⁠622+⁠713
thousands of pounds against the £48,200,000 datumbracketed cell is the record as at week 36

What would take it outside.

The programme priced at the weekly preliminaries rate the extension of time was agreed at, against the part of the envelope that is not yet certified. Every figure in the grid is the deviation from datum that combination would produce.

Combinations outside the band24of 49

The tightest that still holds is +6 weeks at +2%, with £2,000 of headroom.

Priced per week of slip£32,000

From NOT-007, the 3-week extension agreed at £96,000.

Envelope not yet certified£4,550,000

One point on the rate moves the out-turn by £45,500.

Every posting carries the lane it came from.

Cost raised 8 of the 13; procurement is the only lane that took money out. Each lane foots to its own figure, and the four foot to the movement the matrix reports.

  1. W3INS-008Piling mat redesignQSCostSUB+⁠£64,000
  2. W5INS-011Site set-up, agreed omissionQSCostPRE−⁠£38,000
  3. W9INS-027Steel tonnage re-measureQSCostFRM−⁠£26,000
  4. W11INS-041Façade re-specQSCostENV+⁠£310,000
  5. W15INS-046Plant room re-routeQSCostMEP+⁠£72,000
  6. W17LET-003Groundworks let below allowanceBUYProcurementSUB−⁠£502,000
  7. W21INS-049Joinery early order, rate heldQSCostFIT−⁠£87,000
  8. W23INS-052Ground conditions, plot BQSCostSUB+⁠£186,000
  9. W26PSR-002Cladding fixings, sum releasedBUYProcurementENV−⁠£64,000
  10. W28PSR-003M&E provisional sum releasedBUYProcurementMEP−⁠£141,000
  11. W30CTR-004Frame handover, contra chargeSITESiteFRM+⁠£52,000
  12. W33NOT-007Preliminaries, extension of timePMProgrammePRE+⁠£96,000
  13. W35INS-061Sample panel re-specQSCostFIT+⁠£43,000
QSCost
8 postings+⁠£524,000

Instructions priced the day they are issued.

BUYProcurement
3 postings−⁠£707,000

Lettings and released sums against the allowance.

PMProgramme
1 posting+⁠£96,000

Time claims at the agreed weekly preliminaries rate.

SITESite
1 posting+⁠£52,000

Contra charges raised from what the ground shows.

four lanes, 13 postings, week 1 to week 36lanes foot to −⁠£35,000, residual 0

Bring your next scheme onto a live record.

Fifteen minutes on your own cost plan. We load the baseline, price the instructions you have already issued, and give you back the position on the day — not at the next valuation.

SchemeSherbourne Wharf
Datum£48,200,000
Band±£250,000
Postings to week 3613
Forecast out-turn£48,165,000

Sherbourne Wharf is a worked example built for this page: 6 packages, 13 postings, internally consistent, and not a client scheme. Figures in pounds sterling.