The São Vicente ferry and the small Ponta do Sol airport: bottlenecks for building in Santo Antão

An island that receives almost everything by sea

Materials arrive first in Mindelo and cross the Canal de São Vicente by ferry.

Extra costs that push up the price of every home

Transport adds between 10% and 20% to the final cost of materials.

An airport with almost symbolic capacity

The small Ponta do Sol airport is not a real alternative for heavy materials.

Developers call for better sea links

Calls are growing for greater frequency and reliability of the ferry service to Mindelo.

Porto Novo, the island's only sea gateway

Almost all the cement, steel and timber reaching Santo Antão comes in through the port of Porto Novo after crossing the Canal de São Vicente from Mindelo. Builders describe a supply chain with barely any room for manoeuvre, where any ferry disruption immediately translates into work stoppages while sites wait for materials. Larger projects try to stockpile weeks in advance precisely to avoid running out of supplies midway through construction.

When sea conditions dictate the pace of construction

The months with the heaviest swell in the Canal de São Vicente bring crossing cancellations that leave warehouses in Porto Novo with minimal stock for days at a time. Developers consulted estimate these disruptions add several weeks of delay a year to the overall schedule of any construction project of a certain size. The uncertainty forces longer delivery times to be budgeted than on islands with better sea links.

A dependency shared by other islands in the archipelago

Santo Antão's case is not unique: São Nicolau, Brava and São Jorge, in the Azores, face similar constraints from relying on a single sea supply route. The difference lies in traffic volume, notably lower in Santo Antão than on islands with higher-capacity ports, which worsens the effect of any single disruption on the final cost of housing.

Improvements called for over many years

Builders' associations insist on the need to increase the frequency of the cargo ferry and modernise Porto Novo's port facilities, a request repeated at every business forum on the island. For now there is no public timetable for these improvements, and developers continue to pass the extra transport cost on to the final price of every new home.