ᐅ Garage 8m x 7.5m, gable roof, strip foundation, exterior plastering costs

Created on: 27 Feb 2019 21:05
W
wowa789
Good evening everyone,
we need a rough cost estimate for building our garage.

8m x 7.5m (26 ft x 25 ft) with 24cm (9.5 inch) Poroton masonry.
4m (13 ft) of it will share a wall with the house.
2 garage doors
2 windows
1 door to the garden
1 door to the house
Strip foundation
20cm (8 inch) concrete slab
Gable roof
Exterior plaster/render

We want to exclude interior finishing and floor covering for now.

We will do the masonry ourselves. The roof would be built at the same time as the house roof... I think that would be more cost-effective. The same goes for the foundation, concrete slab, and exterior plaster/render.

We are unsure whether we should build the house first and then the garage or both at the same time.
Opinions around me vary widely on this.

I hope you can give me a rough guideline for the costs based on your experience.

Thanks in advance for your thoughts.

Best regards,
Waldemar
Z
Zaudi
22 Mar 2026 10:12
24 cm (9.5 inches) aerated concrete + bitumen + mortar + thin-bed mortar = 4000 Euro – Self Made

Windows + window sills + sealing + screws, etc. = 500 Euro – Self Made