Construction management software: HBuild for Grupo ZAG

Grupo ZAG runs construction projects in parallel, with crews on site and a technical office doing the planning. Its management relied on fragmented tools, Excel and Microsoft Project, which work separately and do not talk to each other.

A construction company evaluating software is not looking for a feature: it is looking for the site and the office to see the same thing at the same time, and that was exactly what was missing.

• Manual tracking: consolidating information from several sources took time and invited errors.
• Site and office out of sync: what happened in the field took too long to reach whoever was planning.
• No traceability of tasks or costs: deviations surfaced late, when they were already deviations.

The cost was twofold: unpredictable schedules, and an operation that could not take on more projects without taking on more administrative hours.

We built HBuild, construction management software on a microservices architecture, with one premise: the data gets entered once, where it happens.

The platform pairs a web and mobile app with an API that centralizes the logic, and integrates the systems the company already used instead of replacing them at once.

Real time site management

• Tasks, inspections and progress updated from the field.
• Issue logging with photos and annotations on plans.
• Online and offline sync, because on site connectivity cannot be assumed.

Planning and control

• Task and planning module with a Gantt view.
• Bulk import from Microsoft Project, so existing planning is not lost.
• Automated exportable reports and cost traceability per project.
• External variables such as weather folded into the planning.

An agile alternative to enterprise suites

• Against options like Procore or Autodesk Construction Cloud, the edge is operating cost and local adaptability.
• Short time to market and custom integration with the systems already in place.

Architecture and technology

• Microservices architecture, with a site tracking API that centralizes the logic.
• Web and mobile apps on the same database.
• Integration with Tango Gestión for the administrative circuit.
• PDF exportable reporting and cross team collaboration.

Learn more about custom software development

Management and tracking time dropped 40% and data entry errors dropped 30%, with field productivity up 25%.

The baseline is the previous operation on Excel and Microsoft Project.

Starting point

• 35% of the time lost consolidating information.
• Low schedule predictability and cost deviations.
• Limited operational scalability.

Results achieved

• 40% less management and tracking time: data is entered once and serves everyone.
• 60% better operational visibility: site and office look at the same state in real time.
• 30% fewer data entry errors: rewriting between spreadsheets disappears.
• 25% higher field crew productivity: less time on admin, more on execution.
• Full centralization: information from every project lives in one place.

Strategic impact

• Decisions are made on data rather than on reconstructed reports.
• Financial control is per project, not per closing.
• The operation scales to several parallel projects without adding structure.