Floor plan single-family house approx. 158 sqm with children's bedroom in the attic

Hello everyone,

Development plan/restrictions
Size of the plot: 713 sqm
Slope: fairly flat within the building window
Floor space index: 0.3
Floor area ratio: 2 Number of full floors as the maximum
Building window, building line and boundary: see pictures
Edge development: no
Number of parking spaces: 2
Number of floors: 2 Number of full floors as the maximum
Roof shape: SD & WD 22°-38° / staggered PD 15-19°
Style: I would say modern
Orientation: main ridge direction east-west
Maximum heights/limits: FH 745.3, TH 742.15
Further specifications

Client requirements
Style, roof shape, building type: We are open, we like the idea so far with a child’s bed in the attic.
Basement, floors: 2 full floors, basement is not within budget.
Number of people, age: 4 people, 34, 31, 3, 1
Space requirements on the ground floor: We would like a playroom (guest) on the ground floor, upper floor: child 1 would be office (see pictures), 2 children’s bedrooms, 1 master bedroom
Office: family use or home office? Home office on the upper floor
Overnight guests per year: approx. 1
Modern construction
Open kitchen and kitchen island
Number of dining seats: one inside
Fireplace: no KFW300
Balcony, roof terrace: -
Garage, carport: double garage
Utility garden, greenhouse
Further wishes/special features/daily routine, gladly also reasons why this or that should or should not be

House design
Who designed the plan: Architect
What do you particularly like? Why? Living/dining room in the south, kitchen with kitchen island
What do you not like? Why? Technical room width 1.73 m I find a bit too narrow, hallway 1 m I’m not quite sure about, roofing from garage to house is missing.
Cost estimate according to architect/planner: 600,000
Personal price limit for the house, including equipment: 600,000
Preferred heating technology: air-to-water heat pump (Kfw 300)

If you have to do without, which details/extensions
-can you do without: second bathroom on the upper floor
-can you not do without: 2 children’s rooms and 1 office, double garage

Why is the design the way it is now? For example
Recommendation from the architect, there is only one direct neighbor in the east (privacy). Therefore, the garage was placed in the east and additionally an interior courtyard is created.

What do you think?
The 1.73 m in the technical room bothers me. Do you think we can fit everything in there?
According to DIN 18012 the room width should be at least 1.80 m, or am I mistaken?
We have also planned the washing machine upstairs as a precaution.

Is a 1 m wide hallway sufficient? Are there specific requirements for hallway width for KfW 300?

Unfortunately, the preliminary draft lacks dimension details. I have added them afterwards.

Many thanks for your support.

Best regards

Hello you,

I am skeptical about the plan, just so you know. I’m not warming up to it!

The roofing from the garage into the house is missing.

What is that supposed to be for?

I’m bothered by the 1.73 m in the technical room. Do you think we can fit everything in there?

I think that’s alright. I could live with it: no unnecessary free space in the middle.

According to DIN 18012, the room width should be at least 1.80 m, or am I wrong?

For a utility room of a multi-family house?

Are there specific requirements for the width of the hallway for KfW 300?

Why would there be?

We have cautiously also planned the washing machine upstairs.

Which of course doesn’t add value to the bathroom, rather the opposite.

Is a 1 m wide hallway sufficient?

Normally, one can probably manage with that. Usually, parallel open staircases provide an even greater sense of space. However, here a closed staircase is planned. The hallway will be virtually narrower. It gets even narrower when you open doors and drawers in that meter. I admit, I’m not a fan of this mess under the stairs, but here you get in each other’s way as well: two negatives together: narrow hallway combined with cabinets.

Well, why am I skeptical? I don’t know what it is: recessed entrance area, the hallway duct, for me no wardrobe (cabinet under the stairs is storage space for me, but not a closet for jackets), kitchen with bottleneck access and no turning possibility. That’s for the ground floor. The upper floor is not my thing at all. Just over 8 sqm for a children’s room. . who makes the beds for the kids? Who sits at the sickbed? Who fetches water, snacks and tissues to the whining child’s bed? In other words: who wants to break their legs sooner or later, that is in the next 10–12 years, just because there is no space for a bed in the children’s room? I’m not a fan of that. That might be a small nice-to-have cave, but no main bed. I’m also not a fan of toilets that are more than a meter away from the shower – I have already had too many stomach flu experiences where separation just doesn’t work.

I agree. These children's rooms with beds accessed by a ladder are total rubbish - expensive and difficult to use. In addition, the children's rooms are very small. I would do without the dressing room and allocate the square meters better to the children. The long entrance hallway feels uninviting, narrow, and bleak. The living room is already very tube-like with a depth of 3.63m. Somehow, the planner seems to favor long narrow rooms. But that is anything but attractive. The garage is in the west, right, or is the sketch not oriented to the north? In this case, the courtyard is simply pointless. It is not inside but sticks to the edge and creates an uncomfortable dead corner instead of a coherent plan. Sealing off this huge area - what’s the point of that? I would rather invest the money in a bigger house. House, garage, and "courtyard" are also arranged so wastefully that hardly any larger garden area remains. I also don’t understand why the garage is not planned as edge development. But sealing everything around again – such nonsense. So for me, the attempt would have failed and would end up in the recycle bin.

2.74 in the bedroom means: just under 50 cm to walk through. You can shorten the house by about one meter by leaving out this office access, planning the shower normally, and shortening the kitchen's horizontal counter by one meter from the over 3 meters of countertop. Upstairs it works the same way if you leave out the separate toilet. Then you can plan one meter more in depth and it loosens things up quite a bit. I actually find the courtyard quite nice for a kitchen terrace, but I would rather place the garage on the boundary and possibly rotate the house.

Statically, it could also become quite interesting, as no wall of the ground floor and the upper floor is aligned vertically.

I am bothered by the 1.73 m height in the technical room. Do you think we can fit everything in there? [...]
Unfortunately, the preliminary draft lacks the measurements. I have added them afterwards.

What are individual centimeters doing in a preliminary draft?