€570/m² in 2026: a tax valuation input, not your building quotation

Official tax figures

Portal da Habitação lists €570/m² as the 2026 average construction value for tax purposes and €712.50/m² as the base value, including the statutory 25% land component under CIMI.

Avoid the confusion

These are property tax valuation inputs, not contractor prices. They cannot directly price a home, extension or renovation.

Separate two files

Keep the works budget, based on surveys and quotations, separate from the tax valuation. The fiscal base is not the annual IMI bill; other factors enter the calculation.

Your circumstances

Contact us to organise the relevant documents and professional checks for your property or extension, keeping technical and tax questions distinct.

Published 23 October 2026