Rural & Agricultural — Portugal
Borehole legality, RAN/REN restrictions, agricultural land rules, and common pitfalls in the Portuguese countryside.
Updated February 2026
Portugal
Water supply from a private borehole (furo artesiano) is extremely common on rural Portuguese property, particularly in the Alentejo, Algarve interior, and rural centre of Portugal, where mains water supply can be absent or unreliable.
Legal status
A furo used for water extraction is classified as a use of a public water resource (recurso hídrico público) and requires a licence from the APA (Agência Portuguesa do Ambiente) or the relevant CCDR (Regional Coordination and Development Commission).
Why many furos are unlicensed
- Many furos were drilled decades ago before licensing requirements were strictly enforced
- The licensing process is bureaucratic and many owners have not bothered to regularise
- Rural transactions have historically completed without scrutiny of borehole licences
Risks for buyers
- An unlicensed furo is technically illegal and can be subject to fines or orders to cease use
- During drought conditions, the APA has powers to restrict extraction from unlicensed furos
- The property may be entirely dependent on the furo for water supply — making a regulatory challenge a serious problem
Due diligence
- 1.Ask the vendor to provide evidence of the furo licence (licença de captação de água subterrânea)
- 2.If unlicensed, assess whether licensing is straightforward (many older furos can be regularised)
- 3.Check aquifer level history and drought restriction experience for the area
- 4.Confirm the furo depth, pump specification, and flow rate
Practical note
The Alentejo has faced significant aquifer stress in recent drought years. Properties dependent on a furo for 100% of water supply should be assessed carefully.
Based on APA — Agência Portuguesa do Ambiente, Lei da Água (DL 58/2005)
Last reviewed: Feb 2026