Construction costs for a 7x7m double garage with own labor

Hello dear ones,

we will have a house built next year. It will be built more or less turnkey. We will build the garage ourselves with relatives (some of whom are professionals). Since we are now working on the exact cost planning, it would be great if someone could tell us what order of magnitude we should expect for a double garage measuring 7x7m. The roof should be a gable roof facing the neighboring garage and a terrace facing the house (the railing of the balcony will be a parapet-high roof).

We actually wanted a flat roof, but since we have to build the same roof as the neighbors according to the development plan as a boundary building, we have to do a gable roof. However, on the side facing the house, we need the windows on this side, so there will be a terrace there. With the preliminary approval, we have already reached such limits with the district office that we have to make as few exceptions as possible.

We would be very grateful for any responses.
Best regards

that is heavily dependent on the construction (thickness of the walls, design of the roof structure) and which materials you buy and where from.

If you have people who are experts, then you can create a material list together.
You know how you want to build the garage, right? In other words, a rough construction plan/ instructions.

Go to a building materials dealer or several and have them create an offer based on the material list, then you’ll know what it costs.
In addition, there is the obligation to register all hours worked by construction helpers (retrospectively) with the BG, which then incurs insurance costs.

I just searched on Google for "Materialkosten Garage". You’ll find quite a bit. Even some here in the forum already.
So please use the search function once.

If you want to know roughly: €10,000 without labor costs

Super thank you for your answer