Building plot in the 2nd row with a narrow driveway

First of all, a warm hello from my side!

I have searched through the forums but found nothing that fits my situation. Therefore, I hope it is okay to start a new thread!

I have the opportunity to purchase a multi-family house with a large plot of land under good conditions, where it is possible to build a single-family house in the second row on the rear part of the property.

The problem, however, is that the only way to access the plot is a very narrow driveway that runs through the multi-family house, which occupies the entire property boundary to the street. This driveway is almost exactly 2m wide and about 3.5m high. The house to be built would be between approximately 30 and 45m away from the street!

My questions are as follows:

Is it even possible to build a single-family house with such a narrow driveway to the house due to fire protection reasons?

Does anyone have experience building under such conditions? I thought of a prefabricated house possibly without a basement. The individual parts would have to be lifted over the multi-family house, which is 2.5 stories with a high gabled roof. However, I think that the almost 40m from the street to the building site could be a problem; what do you think?

I would be happy because the offer is really cheap. I have attached a screenshot from Google Earth.

Many thanks in advance for your help! Hajo

After the initial description, I would have said no if I saw the photo like that... How have the others solved it?

We built from the second row, but only about 15m, there a straight passage with 1.2m width is enough for manual rescue with a ladder.

2m width is definitely not enough for fire trucks, but I also wouldn’t drive in there as a firefighter.

Only the local building authority can probably answer that for you, but the neighborhood doesn’t look that bad.

How have the others solved it?

That would have been my question too. I once asked Google Örß about it myself, the classic aerial view also looks exactly as if your property is the last one still without a rear building, all of which still look quite new. Two meters wide I would rather call a passage than a driveway, i.e. folding in mirrors or fiddling at snail's pace and not being able to swing out properly at the exit. To me, that smells like parking spaces outside. But the neighbors will have solved the building issue as well, and hardly with individually lugged stones in little buckets. Not so many neighboring houses will all be illegal buildings, or approved under old law.

How did the others solve it?

the other apartment buildings apparently have a 3-meter driveway... this house a narrower one.

... This passage is almost exactly 2m wide and about 3.5m high.

That's the catch. The materials for house construction have to be transferred to smaller transport vehicles, the supply lines have to be extended, and the fire department certainly has a say in the matter. I don't read anything about overall good conditions.

Hello,

This passage is almost exactly 2m wide and about 3.5m high. The house to be built would be located at a distance of about 30 to 45m from the street!

Technically feasible for sure, but it makes the construction site significantly more expensive. How much more expensive, I cannot say.

Regarding the passage width and fire department: just ask the fire department and building authority what they say about it. If the fire department says "no" directly, you can probably forget any building plans for the backyard. On the internet, you can find something about minimum dimensions for passages of 3 m width and 3.5 m height. (The turntable ladder vehicles are usually 3.4 m high, so that fits).

Best regards,

Andreas