Portugal construction costs rise 7.4% in September 2026 as labour leads

Construction costs for new homes in Portugal rose 7.4% year on year in September 2026, with labour up 7.7% and materials up 7.2%, on INE estimates.

The facts

Total construction costs of new residential buildings in Portugal were estimated at +7.4% year on year in September 2026, on the new housing construction cost index published by the national statistics institute INE on 9 November 2026.
That annual rate is 0.1 percentage points above the annual rate recorded in the previous month. INE does not print the previous month's figure in this summary release.
Materials rose 7.2% and labour 7.7% year on year, so labour is the faster-moving of the two components.
INE labels the September figures as estimates, and the summary release publishes no month-on-month rate, no index level and no component weights.

A 7.4% rise in build costs lands on new-build prices, not on the existing stock. Buying a finished flat avoids it; off-plan does not.
Labour at 7.7% is the part that does not fall back quickly, so pressure on developer margins points towards fewer starts rather than cheaper new homes.
Glopra puts the Portuguese national average home price at $2,430 per square metre after a 72.3% rise over five years, so build-cost inflation is arriving on top of a market that has already repriced heavily, and the cost side is not the new part of the story.
For an existing landlord the channel is indirect but real: higher build costs raise the price of renovation and of bringing an older unit up to a lettable standard.

INE publishes this index monthly, so the October reading is the next check on whether the annual rate keeps climbing from 7.4%.
The release carries no regional breakdown, so it says nothing about whether Lisbon, Porto or the Algarve differ from the national figure.

Sources: INE Portugal https://www.ine.pt/xportal/xmain?xpid=INE&xpgid=ine_destaques&DESTAQUESdest_boui=770407612&DESTAQUESmodo=2