Floor plan of a single-family house, slight slope location, northwest orientation

Number of parking spaces The adjacent street should provide enough parking spaces. A garage is also planned.

How many parking spaces does your development plan require per residential unit? You have planned one parking space, because the space in front of the garage is usually not counted as a separate parking space. Many development plans require 1.5 or 2 parking spaces per residential unit.

whereas the OP has not yet clarified where the unusual value otherwise comes from: 24 cm stone plus 10 cm insulation? - the planner must have thought something about it

it has not yet been decided whether wood or stone. However, we are strongly leaning towards a wooden house. We are not professionals and have assumed the wall thicknesses to be okay.

So the tender is not meant to include any of these, but a price inquiry with only turnkey general contractors as participants?; and should then an Excel oracle determine the winner of the casting?

a price inquiry is meant. We do not want to commission individual trades because we want to avoid coordinating them and want everything from one source (also regarding warranty)

How many parking spaces does your development plan require per housing unit?

that is not defined, there is no paragraph about it. The plan dates from the 60s. The plot is the only one located in a short side street. Aside from building regulations, parking spaces should not pose any problems here practically and in daily life. I would like to mention that the cost estimate of €540,000 is based on a price of €2300/sqm + additional costs. That seems clearly too low to me. I am increasingly inclined to opt for a standard floor plan after all. The budget is "only" €550,000 and trust in a new and successful architect’s design is relatively low. Isn’t the weakness of the design mainly in the placement of the staircase? It seems to me that the entire house is divided into "north" and "south" through the course from left to right. The rooms are arranged above and below the stairs. However, there is the sloping roof and the challenge of the low knee wall on the upper floor. The result is a huge dormer in the north and 4 roof windows in the south.

Tilted 90 degrees to the left, this floor plan of a ground floor seems to me at first glance to come significantly closer to our desire for more light. The garage could probably also be connected to the technical room on the right. Protrusions could be reduced and/or shifted. Unfortunately, you lose the larger window front to the right towards the fields. However, both will hardly be feasible (open to the south on the left for light incidence, open to the right for the view and at the same time connection of a garage with a 5m distance to the street).

that is not defined, there is no paragraph about it.

Then the parking space regulation of your country applies.

tilted 90 degrees to the left

Since south lies at seven o’clock at the bottom of the plan and you have fields to the north and east, but road noise in the east, I would choose this orientation

The garage then goes to the diagonal east, three meters wide at the front, wider towards the back.
It needs to be clarified whether the garage must adhere to the building line or may be set back.
The location of the entrance will depend on that. Then the ancillary rooms need to be arranged differently of course.. the staircase would also have to be moved and adapted to the roof slope. At least here it already has the correct alignment (eaves/ridge).
If the garage/entrance is close, forgo a second hallway running through the easily cleanable utility room. Combine utility room and pantry. That works. Or accommodate the utility room in the gained square meters in the attic. Ultimately, square meters should be saved. The living room is too large. Well, that can be adjusted. The increased depth of the house can be better used under the roof. But you probably have to compress some things.

Since south is downstream at seven o’clock and you have fields to the north and east, but road noise to the east, I would choose this orientation [ATTACH alt="IMG_0742.jpeg"]91535[/ATTACH] The garage then goes to the angled east, three meters in the front, wider towards the back. It needs to be clarified whether the garage must also comply with the building line or if it can be set back. The location of the entrance will depend on that. Then, of course, arrange the ancillary rooms differently... the staircase would also have to go somewhere else and adapt to the roof slope. Here it at least already has the correct orientation (eaves/ridge) If the garage/entrance are close, do without a second corridor through the utility room (to keep it clean). Combine utility room and pantry. That works. Or accommodate the utility room in the gained sqm in the attic. Ultimately, sqm should also be saved. The living room is too large. Well, that can be trimmed down. The increased depth of the house can be used better under the roof. But some things will probably have to be compressed.

Thanks for the suggestion. However, I have the impression that the terrace would then feel somewhat cramped between the neighbor’s hedge (which starts directly on the property boundary) and my own house wall. Moreover, unless it is midsummer with the sun high, I could imagine the shadow cast by the neighbor’s building and the hedge leaving only a few meters of sunshine. The hedge is about 1.50 m high and would be about 3 m from the house if it were not narrower.