Cockpit · Margin Bridge (BRG) · Worked example Meridian M&E Ltd · 8 contracts · April 2026 (Month 7) · Margin 21.4% (target 22%) · £14.2m
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BuiltAI
Confidential
Ref: BAI-MB-2026-04
Generated: 30 April 2026
Operational Margin Cockpit™ · Margin Bridge

Margin Bridge
March → April 2026

Period-on-period margin movement analysis showing the six key drivers that moved portfolio margin from 20.8% to 21.4%. Meridian M&E Ltd — eight live contracts.

Opening margin
£1,204k
20.8% · Mar close
Net movement
+£64k
+0.6pp improvement
Positive drivers
+£104k
3 categories
Negative drivers
−£40k
3 categories
Closing margin
£1,268k
21.4% · Apr close
01
Bridge Summary

Portfolio margin improved by +£64k in April, lifting the blended rate from 20.8% to 21.4%. This is the first month of positive margin movement in three periods and brings the portfolio within 0.6pp of the 22.0% target.

The largest positive driver was approved variation recovery of £68k on the Whitmore Tower contract, where an asbestos-related scope change was agreed with CBRE after a two-month negotiation. Subcontract outturn savings of £24k on Docklands Phase 2 and a net £12k adjustment across smaller contracts also contributed.

Negative movement came from prelim overruns (£18k, primarily Cathedral Quarter where programme slipped by two weeks), labour reallocation (£14k, cross-charging between Pennine and Trafford Retail) and FM deductions (£8k on Riverside FM, currently under dispute with Mitie). Without the variation approval, margin would have declined for a fourth consecutive period.

02
Margin Waterfall £'000s
1,400 1,300 1,200 1,100 1,000 £1,204k Mar close 20.8% +£68k Variations approved +£24k Subcontract outturn −£18k Prelim overrun −£14k Labour reallocation −£8k +£12k Deductions & other net £1,268k Apr close 21.4% Net: +£64k (+0.6pp)
03
Driver Detail
Positive drivers — +£104k
Variation Recovery
Approved claims & adjustments
+£68k
Whitmore Tower — asbestos scope +£62,400
Docklands Ph 2 — access ramp +£3,800
Mersey Gateway — daywork adj. +£1,800
Whitmore asbestos claim — two-month negotiation with CBRE. Final agreed figure £62.4k against £68k submitted. 92% recovery rate. Notice was issued within 48 hours of discovery via Commercial Control Kit™.
Subcontract Outturn
Final account savings
+£24k
Docklands Ph 2 — steelwork pkg +£16,200
Alderley Park — ductwork +£5,400
Whitmore Tower — tiling +£2,400
Docklands steelwork package was competitively re-tendered after original subcontractor withdrew. Replacement package came in £16.2k below allowance. Alderley and Whitmore savings are final-account adjustments against measured quantities.
Other Net Adjustments
Sundry items & corrections
+£12k
Pennine Pkg C — material credit +£6,800
Trafford Retail — cost reclass. +£3,100
Cathedral Qtr — accrual release +£2,100
Pennine material credit relates to returned unused cable trays (March over-order). Trafford reclassification was a March cost posted to wrong cost code, now corrected. Cathedral accrual no longer required after scope reduction confirmed.
Negative drivers — −£40k
Prelim Overrun
Extended programme costs
−£18k
Cathedral Quarter — 2wk slip −£12,400
Trafford Retail — welfare ext. −£3,600
Pennine Pkg C — site security −£2,000
Cathedral Quarter programme slipped due to late design information from ISG architect. Time claim under review — if successful, £8k of this overrun would be recoverable. Trafford welfare extension is a one-off cost for additional portacabin.
Labour Reallocation
Cross-contract charges
−£14k
Pennine Pkg C — 2 engineers −£8,200
Trafford Retail — supervisor −£5,800
Two electricians moved from bench to Pennine to cover programme acceleration. Trafford required an additional supervisor for night-shift works not in original plan. Both are one-off costs — not expected to recur in May.
FM Deductions
SLA penalty charges
−£8k
Riverside FM — P1 response −£4,800
Riverside FM — evidence gap −£3,200
Both deductions are currently disputed with Mitie. P1 response deduction relates to a call logged outside agreed hours. Evidence gap relates to missing sign-off photos — ops team has since located these. Commercial Director escalating in May.
04
Six-Month Margin Trend
Period Revenue Cost Margin £ Margin % vs Target Net movement WIP CNI
November 2025 12,400,000 6,280,800 1,142,200 22.3% +0.3pp +£38k 218,000 142,000
December 2025 12,800,000 6,542,400 1,168,600 21.8% −0.2pp −£26k 264,000 158,000
January 2026 13,200,000 6,890,400 1,196,600 21.2% −0.8pp −£18k 296,000 176,000
February 2026 13,600,000 7,112,000 1,208,800 21.0% −1.0pp −£12k 318,000 192,000
March 2026 13,800,000 7,396,800 1,203,600 20.8% −1.2pp −£5k 345,000 208,000
April 2026 14,200,000 7,606,000 1,267,600 21.4% −0.6pp +£64k 387,000 214,000
Margin trend observation
April breaks a three-month decline. The recovery is primarily event-driven (Whitmore variation approval) rather than structural. If the two disputed FM deductions are overturned and the Mersey Gateway claim is approved, May margin could reach 21.8% — within 0.2pp of target.
WIP trend concern
WIP has risen in every period since November, from £218k to £387k — an increase of 78%. This is the highest-priority operational issue. The Riverside FM and Cathedral Quarter application blockers must be resolved in May to prevent the 90-day exposure threshold being breached.
05
Implications & Next Steps
If resolved
Approval of Mersey Gateway claim (+£31k), Pennine variation (+£18k) and reversal of disputed FM deductions (+£8k) would lift portfolio margin to ~21.8%, within 0.2pp of target. Resolving the two largest WIP blockers would release ~£211k into the invoicing pipeline.
If unresolved
Without these actions, margin will likely fall back below 21% in May due to continuing prelim exposure on Cathedral Quarter and escalating WIP ageing. The Riverside FM contract, at 14.8% margin, is on track to miss its year-end target by more than 7pp if the deductions dispute and application format issues are not resolved.
Key dates
9 May — Commercial Director to approve Mersey Gateway claim for resubmission. 15 May — Client deadline for Mersey Gateway re-measure. 23 May — Standardised FM application template to be produced. 30 May — Next monthly review.
Up next
WIP · Aged WIP Tracker
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