Rent and Renovation Documents — Tenants Portugal

Rent & updates (index/coefficient, caps) 2 min read · published September 11, 2025

As a tenant in Portugal, understanding which documents prove a renovation and justify a rent adjustment is essential to protect your rights and avoid disputes. This article explains, in clear language, which papers to request from the landlord, what evidence to collect (invoices, photos, estimates), when and how to submit a rent update request and which legal limits and coefficients apply. It also includes practical steps to request information, records to keep and resolution options — from direct negotiation to procedures at the Tenant Desk.[2] If you face renovations in your building or receive a proposed increase, know how to act to protect your housing and your finances.

Which documents to request

Ask for documents that prove the necessity and timeline of the works, and keep both digital and physical copies.

  • Invoices and receipts (documents proving payments and materials)
  • Work permit and municipal communications (document)
  • Estimates and contracts with contractors (cost estimate)
  • Before/after photographs and date-stamped records (photo evidence)
  • Written communications between tenant and landlord (mail, e-mail or SMS showing notices)
Document everything and keep digital copies.

How rent updates work

Rent updates in Portugal can be based on contract clauses, mutual agreements or the limits and coefficients set by applicable law. The NRAU and Civil Code rules guide when and how rent may be revised; in many cases an increase must be justified by actual expenses or works that substantially change the property value.[1] Check contractual notice periods and required forms of notification.

Respond to notices within deadlines to avoid losing rights.

Practical steps before accepting an increase

  • Formally request from the landlord the list of works, permits and invoices.
  • Gather your own evidence: dated photos, receipts and exchanged messages.
  • Negotiate timelines and possible compensation (for example postponement of the increase).
  • If no agreement, check procedures at the Tenant Desk or seek legal assistance.

FAQ

Can the landlord raise the rent because of renovations?
The landlord can propose an increase if the works justify a change in the property value, but must follow the contract, legal limits and prove the costs.
What evidence should I collect to challenge an increase?
Collect invoices, estimates, before/after photos, written communications and witness statements showing the real impact of the works on the property.
Where can I turn if there is no agreement?
Consider mediation, a complaint at the Tenant Desk or court action. Keep all documentation and respect response deadlines.

How to proceed

  1. Request in writing from the landlord the list of works, permits and invoices.
  2. Gather your own evidence: dated photos, receipts and exchanged messages.
  3. Negotiate timelines and possible compensation (for example postponement of the increase).
  4. If no agreement, file a request or complaint at the Tenant Desk or seek legal assistance.

Help and Support


  1. [1] Diário da República — DRE
  2. [2] Citius — Tenant Desk
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights Portugal

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for tenants everywhere.