Floor plan of a duplex house with approximately 165m² and 150m² / with gable roof / dormers

Where is the slope?

What does the development plan say about roof structures?

Budget for your semi-detached house?

Have read many posts and am very happy about such a forum.

The responding forum is also very happy if the time is not wasted and if feedback as well as the resulting questions are answered. From you :)

Sorry that I couldn’t respond sooner.

A few key data points:
Total plot: 714 m2, it belongs to us.
We will move into the western half, the eastern half will be rented out.
Two "semi-detached houses" or a two-family house are to be built.
We only want to use the attic for ourselves.

The development plan specifies only the floor area ratio I with 0.3 for us. Therefore, 0.3 x 714 = 214.2 m2 (12 m x 17.8 m)
(for ancillary facilities, it would be another 15% = 107.1 m2) may be built on (no floor area ratio specified).
Apart from the requirement for ridge-eaves height and gable roof, nothing else is specified.

The building regulations office has already agreed on the following:

Garage or carport (still undecided) with "captured parking space" (east) is allowed.
Access possibly via the garage to the northern part of the garden.

There is no statement about the location of dormers or distances to the gable sides in the development plan. It is rather considered a kind of cross-gable/-dormer. There are also no specifications for these in the development plan.
Therefore, it is allowed. Certainly, the dormer width may be MAXIMUM 50%, I still need to correct that. The architect will then take care of it.

Plinth height is planned at 61.75 m.
Reference height 62 m. Therefore minus 25 cm.
Slope difference of 80 cm from east (62.30 m) to west (61.50 m)
and from south to north negligible < 10 cm.

Costs: about 2500 euros per m2, I think.

I will try to implement the suggestions and provide drafts afterwards.

I am grateful for any suggestions.

Best regards

Mex

In the development plan, only the floor area ratio I with 0.3 is specified for us. Therefore, 0.3 x 714 = 214.2 m2 (12 m x 17.8 m) are allowed.

Floor area ratio?!? Remember: the terrace belongs to the floor area ratio calculation

m)
(for ancillary facilities it would be another 15% = 107.1 m2) can be built (no floor space ratio indication).

including paths

Garage or carport (still undecided) with "trapped parking space" (east) is allowed.

good, if it is allowed. Still very impractical. Almost a kind of fool’s errand, or what is the name of the town?

Elaborate wall construction, dormers, statics: it will be more than 2599/sqm. The new prices (about 30% increase in many trades) should have reached you as well.
I would plan properly and functionally regarding the exterior planning. You don’t only live inside the house; the outdoor flow also has to work. Otherwise, such a house is no fun. Or how did you imagine it if two working people first have to switch their cars in the morning? And the driveway already takes away the fun of the property. Just the paving costs alone…
By the way, I find the ground floor quite good at first. You can go into fine tuning regarding wardrobe space etc. But first, there should be an adjustment of the house size and well-thought-out driveways and parking spaces.

Hello,

to illustrate the slope

Here some minor changes,

prefer the living area by the terrace and try to remodel something on the first floor.

Regards
Mex