Extensions and structural works / Portugal

Extend or reshape your home, with the permits handled.

Added floors, extensions and layout changes, coordinated from feasibility to completion.

Structural work needs the right professionals in the right order. We coordinate the architect, structural engineer and contractor around what the building and the rules allow, so you know the route before you commit.

Lisbon · Cascais · Sintra · Algarve · Porto · Coimbra · Castelo Branco

Free to use · No obligation · We respond within 24 hours

An architect and a contractor reviewing extension drawings on site beside material samples
Feasibility before you commitArchitect and engineer coordinatedPermit route identified earlyWritten scope and staged payments

Feasibility

Start with what the building and the plot allow.

Planning limits

Each municipality sets building indices and limits in its master plan (PDM). The appointed architect checks what additional area, height or footprint is permitted for your property.

Structure

A structural engineer assesses whether the existing walls, foundations and roof can carry an added floor or an opening, and what reinforcement is needed.

Existing approvals

Unlicensed past additions can block new approvals. We check the documents on file before design begins.

Permits

Which structural works need approval?

Works that change the structure, volume or external appearance of a building generally need municipal control before they start. Your architect prepares the submission with the structural engineer's design.

Portugal is reforming the licensing regime (DL 108/2026, in force from 1 October 2026), so the route is checked for your municipality before dates are committed. Approval outcomes and response times cannot be guaranteed.

Further reading / Permits

Understand the starting questions

Our guide explains the difference between works that are exempt and works that need municipal control. Use it as background; the appointed architect confirms the route for your project.

Read the permit guide

Process

From feasibility to completion: the stages we coordinate.

  1. 01

    Assess feasibility

    Review the property, your aims and the planning framework with the architect.

    You receive: A feasibility view and assessment plan

  2. 02

    Design and engineer

    Coordinate the architect and structural engineer around layout, structure and budget.

    You receive: A coordinated design and engineering brief

  3. 03

    Submit for approval

    The appointed professionals prepare the submission and respond to the câmara's requests.

    You receive: A submission and programme assumptions

  4. 04

    Appoint the contractor

    Compare proposals against the same drawings, clarify exclusions and define payment stages and change procedures.

    You receive: A proposal and delivery plan to review

  5. 05

    Coordinate construction

    Monitor progress and report on decisions and changes. Structural responsibilities remain with the appointed professionals.

    You receive: Regular reports and site photographs

  6. 06

    Complete and regularise

    Coordinate snagging and the completion documents the appointed professionals identify, so the new area is properly recorded.

    You receive: An agreed handover file

Delivery

Keep the structure and the living space connected.

Living through the works

If you stay in the property, we plan access, dust, noise and services so the works disrupt as little as possible.

Cost and change control

Structural surprises are presented with their cost and programme effect for your approval before work proceeds.

Visibility from abroad

Agree site attendance, reporting frequency and review calls before appointment, with photographs of anything that will be covered.

Appointment

Understand the scope before you commit.

Your proposal sets out the project management charges, inclusions, site attendance and reporting arrangements. Project management is a separate service, with its price agreed with you before any work starts.

Professional fees, investigations and construction costs are identified separately as the scope develops. Early budgets state their assumptions and uncertainties, and we do not quote a price for an extension before the scope is understood.

Clear responsibilities

A coordinated team

Architects, engineers, contractors and specialists hold the responsibilities assigned under their own appointments, licences and insurance. Contractors are vetted and verified, and proof of liability insurance is requested before work starts.

Project management does not replace technical certification or contractor obligations. The project agreements explain who you contract with, payment arrangements and warranties.

FAQ

Questions before you begin

Start a conversation

Tell us about your project.

Share the essentials so we can assess the project and the support you need.

What happens next?

We review the location, scope, budget and timing, then get in touch to discuss suitability and any further information needed before a site assessment or proposal.

Only include information needed to discuss your project. Photos and plans can be shared after the first conversation.