ᐅ According to the floor area ratio, only 138 m² are allowed for a two-story building – need help :)

Created on: 31 Mar 2019 05:20
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Aloha1896
Hello, I have the opportunity to purchase a plot of land in the Hannover region with an old Okal prefabricated house. We would remove the existing house and potentially use the existing basement (which is dry). Now the challenge – the development plan specifies the following: II, floor area ratio 0.15 in the WR zone – the plot is 926 m2 (9,965 sq ft) and faces west – which results in 139 m2 (1,495 sq ft) – is that correct?

We are a young modern family of three and can imagine living in a small house. However, I currently have no idea how much net living space would remain, nor how the house could be designed.

Can I get some ideas here? Are there similar cases? I am attaching the current basement plan.

What we like:
cubist architectural styles
covered terraces
open living concepts

Architectural drawing of a house including floor plans, elevations, and cross-section
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ypg
31 Mar 2019 21:46
Nordlys schrieb:
First of all, a floor area ratio of 0.15 is truly a luxury. Since this applies to the neighbors as well, it guarantees privacy, a house with distance from the next one, and plenty of greenery. This is the complete opposite of the 0.4 floor area ratio in urban villa wastelands in white and gray, with boxwood in granite gravel beds out front and a Q5 on the clinical driveway.
Given the size of the plot, a 10 by 13 meter (33 by 43 feet) house plus terrace is feasible—10 by 13! That means, with an upper floor, easily 145 square meters (1,560 square feet) of living space. Well, if that’s not enough. I see absolutely no problem for the planning. Karsten

No, darling, not floor area ratio... here it’s the 0.15 for the plot ratio / floor space index!
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Nordlys
31 Mar 2019 21:50
Oh, my dear. Well, the construction there is quite loose. At least there are now some pictures.
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Aloha1896
31 Mar 2019 21:51
Once again – the trees at the front on the east side should be removed

View of garden path between two residential houses with trees and hedges


Garden view with tall pines, wooden fence and gate in front of a house
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Aloha1896
31 Mar 2019 21:58
ypg schrieb:
No darling, not the site coverage ratio... here it’s 0.15 applied to the floor area ratio!

It hasn’t been really clear so far 😉
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Aloha1896
31 Mar 2019 23:31
Escroda schrieb:
The neighbors to the north are definitely exceeding both limits. I also suspect three other plots. Therefore, I would give a good chance to obtaining a building permit exemption / planning permission waiver.

Which ones are you referring to?

Site plan of a building plot with parcels, buildings, and roads
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Escroda
31 Mar 2019 23:40
Aloha1896 schrieb:
The entrance is from the east

This depends on how you interpret the building plan. I say the entrance is from the north. Well, you have to walk up the entrance stairs from east to west. But you actually enter the house from the north. In any case, the red arrow in #77 is incorrect.
Aloha1896 schrieb:
It hasn’t been very clear so far

Since I don’t really consider the mentioned contradiction in the building plan legally enforceable (whether legally or pragmatically I leave open) and I am not familiar with the texts related to the building plan, I assume that the floor area ratio is indeed 0.15.
Aloha1896 schrieb:
Which ones are meant?

138/7 and 138/8 as well as 139/3, 141/2, and 138/9 (visual estimate)