Small wind turbine: do you need a permit in Portugal?

Independent site: we are not a public authority, and this is not legal or tax advice.

A small wind turbine on a house is exempt if it rises no more than 4 m above the building and its rotor radius is 1.5 m or less, but you must first notify the council with its location, height, radius and noise level.

Ask for a free check

Answer

Exempt, with prior notification to the council

Height

Not more than 4 m above the building

Rotor

Generator radius of 1.5 m or less

Notification

Location, height and radius, noise level, and a responsibility statement that you know and meet the rules (art 6-A(5) and (6))

Before you start

Tell the council at least 5 days before work begins, even for exempt work (art 80-A).

Heritage exception

Minor-works exemptions do not apply to listed buildings, buildings in the protection zone of a listed building (window frames excepted), or buildings inside listed groups or sites (art 6-A(2)).

Council rules

Your council can add detail in its own building regulation where the law lets it, so ask before you start.

Legal basis

RJUE art 6-A(1)(g), (5) and (6), RJUE (Decreto-Lei 555/99) as republished in the Annex of Decreto-Lei 108/2026

Sources

data.dre.pt/eli/dec-lei/108/2026/05/29/p/dre/pt/pdf

Checked

2026-11-05