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Enterprise Resource Planning

Construction ERP

A field-to-finance ERP tying project planning, procurement, subcontractor management, site progress and cost control into one live project ledger.

Client

Halden Build

Industry

Construction

Year

2024

Duration

14 months

Construction ERP — Halden Build interface

Business Challenge

Project margins were only known after completion. Site progress arrived by photo and phone call, variations were agreed verbally, and procurement had no view of what was already on site.

Our Solution

We connected budgets, purchase orders, subcontract packages and daily site reports to a live cost-to-complete engine, with a mobile app for foremen working without signal.

Engineering

Technology Stack

Chosen for longevity and operational simplicity, not novelty — every dependency here is one we still support today.

ReactTypeScriptReact NativeNode.jsPostgreSQLAzure

6

Core technologies

14 months

Build duration

2024

Delivered

Inside the build

Project Features

Live cost-to-complete

Committed, incurred and forecast cost recalculated on every site or procurement event.

Subcontract packages

Package scope, retention, valuations and payment applications in one workflow.

Site daily reports

Foremen log labour, plant, weather and progress photos from a phone, offline.

Variation control

Change requests priced, approved and reflected in the budget with full traceability.

Procurement planning

Material call-off scheduled against the programme to reduce site storage.

Portfolio dashboard

Directors see margin, risk and cash position across every active project.

Development Process

Discovery

Site visits across four active projects to understand real reporting habits.

Architecture

One project ledger as the single source of truth for both site and finance.

Design

Glove-friendly mobile forms alongside a dense desktop cost view for QSs.

Build

Offline sync with photo compression tuned for poor rural connectivity.

Pilot

Two projects run in parallel with the old process to validate the numbers.

Rollout

Company-wide adoption supported by an internal champion at each site.

The Results

Cost overruns became visible weeks earlier, protecting margin across a portfolio of concurrent projects.

4.2%

Margin protected

3 wks

Earlier risk signal

60+

Projects tracked

90%

Site reports on time