Your opinions on our floor plan and offer

Hello, my wife and I want to build next year and have found a suitable plot (704sqm, 18.5m wide with south orientation) on which we are only allowed to build one story.

Our house idea is a gable roof with the highest possible knee wall (about 150cm, 25 degree angle) and a cross gable to the south and into the garden.

We have now found a provider who made us the following offer with the following floor plan and the following data:

-Single-family house with approx. 170sqm living space
-Upstairs floor-to-ceiling windows
-Housekeeping room with entrance door
-Double wing door to the living room
-Roof overhangs at the eaves approx. 80 cm and at the gable approx. 30 cm
-Insulation according to KfW70 standard (2-layer, 45cm wall thickness with clinker)
-Windows with triple glazing, colored outside, u-value = 0.7 W/m²K
-Roller shutters in the bedrooms electrically operated
-Guest WC as a shower bathroom
-Roof covering with engobed clay roof tiles Nelskamp F 7
-Terrace doors with new construction threshold
-Underfloor heating on ground and upper floors
-Ventilation system with heat recovery and central heat exchanger Vallox type controlled residential ventilation - SC with integrated summer bypass in the housekeeping room,
4-stage switch Vallox VSS, duct system for supply and exhaust air
-Velux (Velux roof windows)

... otherwise tiles in the usual rooms, painting and other floor covering work come additionally. The house should cost us 195,000 euros!

I have the following questions:

Can you say something about the price, does anything stand out to you? (I know it is not a complete list)

Do I need a solar system for domestic hot water (which is also included in the purchase price) or can I remove this and still reach KfW70 standard?

Here are the floor plans:

[ATTACH alt="eure-meinungen-zu-unserem-grundriss-und-angebot-54555-1.jpg" type="full"]25630[/ATTACH][ATTACH alt="eure-meinungen-zu-unserem-grundriss-und-angebot-54555-2.jpg" type="full"]25631[/ATTACH]

Looking forward to your comments ...

Attached are the pictures

What other costs are you still calculating? I’m thinking about earthworks, foundation slab, house connections, and such fun stuff. I think about 40-60 thousand euros will be added. The costs and incidental expenses for the [Grundstück] are probably clear.

And are you sure that with the floor plan on the upper floor you maintain the single-storey structure?

Neither am I an architect, nor do I know the building regulations in [NDS], but somehow I see that critically.

I think it's a shame that the nicest room is the dressing room ... :(

Otherwise, I find the floor plan quite nice (although I don't understand why you need a dining area in the kitchen when the dining room is just 2 meters away).

Should the bathroom layout stay like this?

Regarding the price: Something can't be right if you're paying under €200,000 for a house with clinker and 170 sqm. There must be something added on, right?

What other costs are you calculating for? I'm thinking of things like groundworks, foundation slab, house connections, and such fun stuff. I think around 40-60 thousand euros will still be added. The costs and ancillary costs for the plot are probably clear.

Groundworks are sufficiently included in the construction description, it is a new development area and according to the soil report that is consistent ... house connections are around 5000 euros, I have estimated another 5000 euros for other incidental costs such as building permits, the soil report, and construction electricity, architectural services etc. are included ...