Guides

Step-by-step guides to the paperwork that holds a project together: which document is needed, what it must contain and why it gets sent back.

4 articles

Oil painting in the style of a Dutch night watch: a company of guards in hats and armour, each holding sheets and documents instead of weapons, while the captain at the centre reaches out for the next paper

Interventoría and supervision in Colombia: who oversees your contract, and with what powers

In Colombia a public contract is overseen by a supervisor or an interventor, and they are not the same. What each one does and what liability each one carries.

by Carlos Pérez (Comandos)

Orientalist oil painting in ochres and cream; a man standing in the street reads an open book of handwritten pages in front of a scribes' workshop, while two horses wait at his side

Construction audit: what they will ask for and how to be ready

A construction audit checks whether what was claimed matches what was built, and whether it is supported. What documents they ask for, how to organise them and what to do if something is missing.

by Carlos Pérez (Comandos)

Pen-and-ink illustration with watercolour washes in sepia, dusty rose and pale teal; on a hilltop at dawn a man in a hard hat raises a lit lantern, and up the slopes a dozen workers in hard hats climb towards the light through tall grass and scrub

The ITO on site in Chile: what powers it really has and how to work with inspection

In Chile the inspector técnico de obra checks the work against the permit and the codes, and is subsidiarily liable alongside the builder. What it can and cannot do.

by Felipe Arancibia

Aerial view of a reinforced slab with a site crew

What must a construction payment estimate contain? (and why review it in 3D)

The minimum supporting documents of a construction payment estimate in Venezuela, the most common review mistakes and how a 3D digital twin changes it.

by Carlos Pérez (Comandos)

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