ᐅ New construction of a semi-detached house with a full basement and demolition

Created on: 19 Apr 2022 23:44
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ZonnyNg
Hello everyone,

After searching for some time, we were fortunate to secure a plot of land. Now comes the stressful phase, as usual: planning. I urgently need your advice.

1. Challenge – Demolition
There is an old semi-detached house on the plot that is no longer habitable and must be demolished. Both semi-detached houses were built around 1930 and most likely share a common party wall. Is it possible to demolish the house without damaging the neighboring property?

2. Challenge – Full Basement
The existing house has only a partial basement, about 20 sqm (215 sq ft). According to the development plan, we are allowed to build 17 x 7.5 m (56 x 25 ft). Is it possible to excavate a full basement given the adjacent house?

3. Challenge – Architect
We would like to build with an architect but have not found one so far. I’m also unsure if every architect can handle the two challenges mentioned above. I found the portal construyo online, which seems interesting. Does anyone have experience with such a portal?

I would be very happy and grateful for any comments or advice.

Best regards,
Zonny
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ZonnyNg
21 Apr 2022 08:38
I have received some documents regarding real estate and will upload them during the day.

I found some demolition companies nearby in the Yellow Pages but cannot assess them. Could you give me some advice? I would like to get two quotes.

- abbruch-oberndoerfer
- vandenberg-gruppe
- koenigabbruch
- bundrock

Thank you very much
11ant21 Apr 2022 11:57
ZonnyNg schrieb:

I have received some documents related to real estate and will upload them during the day.

As I already mentioned in my email, it’s best if you show the plot of land and the existing house.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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ZonnyNg
21 Apr 2022 17:14
This is all the information I received from the property. On the site plan, the orange area indicates the building zone. The small section within it is the current house.

Site plan: Two houses (my house, neighbor’s house) with boundary lines and building area marked in blue.


Basement floor plan with two rooms: Basement room 1, Basement room 2, stairs on the left.


Apartment floor plan: bedroom, living room, hallway, entrance area, kitchen, bathroom, storage room.


House floor plan: kitchen, children’s room, foyer, living room, bedroom, storage room, and toilet.


Architectural drawing of a house with west elevation, section A-B, and attic floor.
11ant21 Apr 2022 20:02
ZonnyNg schrieb:

This is everything I received from the real estate.
Ah, now I understand... were you in France before? – the profession is called "real estate agent" in German.
ZonnyNg schrieb:

On the development plan, the building zone is marked in orange.
Interesting. So it’s not a continuous gable across the full depth, as I initially thought.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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ypg
21 Apr 2022 22:07
ZonnyNg schrieb:

According to the development plan, we are allowed to build 17 x 7.5 m (56 x 25 feet).
Are you sure you are allowed that size?
The building envelope shows the area on the plot where you can build, but it looks like the floor area ratio restricts building too much, or there may be another limitation regarding the width of the house. The houses are not that narrow for no reason.
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ZonnyNg
22 Apr 2022 08:45
11ant schrieb:

Oh, now I understand... were you in France before? - the profession is called "real estate agent" in German.


I don’t understand 🙂 Please simple German.
ypg schrieb:

Are you sure the size is allowed?
The building envelope shows the area you can build on the plot, but it looks like a floor area ratio limits building too much, or another restriction limits the width of the house. That’s why the houses are so narrow.


I have talked to a building consultant. Yes, a 3m (10 feet) distance to the neighboring boundary must be kept, and the width is almost 7.5m (25 feet). To the rear, it’s like in the building envelope, about 17m (56 feet) deep. The representatives from two construction companies said the same. But yes, it is still not 100% sure. I am also happy with 7 x 14m (23 x 46 feet), as long as it is doable and with a basement.