Case study
Brookfield rear extension: £14,200 recovered, zero disputes
A four-person residential contractor running six live builds moved one project onto BuildOS as a trial. Twelve weeks later, every change was priced, approved and paid — and the client never once phoned to ask what was happening.
Variation value recovered
£14,200
7 variations, all approved
Admin hours saved weekly
6.5 hrs
reporting and chasing
Disputed items at handover
0
down from 4 on the prior build
Final margin
21.4%
tendered at 19.0%
Spend tracked against plan, weekly
Actuals never drifted more than 1.7% from the planned S-curve.
Where the margin came from
Recovered change and reduced rework did the work, not squeezing subcontractors.
- Original contract sum£168,000
- Approved variations£14,200
- Delivered cost−£143,100
- Rework absorbed−£1,200
- Final margin£37,900
“The bi-fold upgrade would have been a £3,000 argument on any of our previous jobs. It was priced, approved and in the contract sum inside two hours, with photos attached. That is the whole product for me.”
Daniel Whitfield · Director, Whitfield Construction Ltd
How the twelve weeks ran
Weeks 1–2
Setup and scope lock
Scope, programme and budget imported from the tender in an afternoon. Client invited to the portal on day three.
Weeks 3–6
Site running on evidence
Daily diaries with photos took under a minute each. Two issues raised and resolved without a site visit from the director.
Weeks 7–10
Change managed under ChangeLock™
Seven variations raised and priced. Average client approval time: 4 hours 20 minutes.
Weeks 11–12
Snagging and digital handover
31 snags cleared with before-and-after evidence. Handover pack issued as a permanent property record.
Illustrative case study based on the demonstration project shipped with the platform.
Walk this project in the demo