Bungalow 148m² site planning / floor plan planning

For a corner bungalow, I would try something like this:

I played around again with an angled bungalow ops:

The idea was a proper summer evening BBQ terrace.

In the north a garage (then the window in the utility room has to go) with a storage extension, alternatively a carport with storage extension here as well.
In the southwest then another carport with a nice partition wall.
If the house is placed at the 5m corner just like the northern garage, in my opinion you are far enough away from the street and can create a nice spot for summer evenings in the corner of the bungalow. Also undisturbed by neighbors, who can enjoy the evening sun.

In the southeast you can still put a terrace, you could also consider making an exit from the children's rooms, etc.

Just meant as inspiration for now.
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Nice floor plan. I'm just not sure how sensible it is to put the terrace in the front. 200m away there is a large log house. It might be that the sun disappears behind that house. But I will have a look at the plot again in the next few days.

Advantages:
- nice structure in the floor plan
- little traffic area
- huge living, dining and kitchen area
- my wife will like it if the children's rooms are at the back

Disadvantages:
- children's room 1 next to the living room
- to get from the bedroom to the bathroom you have to go through the dining area (whether that is a big disadvantage is debatable)
- utility room not at the front
- both plot boundaries are built up with garage/carport

The staircase basically depends on the floor height first. I always calculate it on the website (-> google) "Treppe 1x1" (staircase basics). You should keep some basics in mind here. For example, I would not go below 1m width in my house - stringers and railings ultimately make it narrower anyway. Also, I always try to have a rise somewhere between 18 and 18.6 cm and a tread width of 26 to 27 cm. Headroom not less than 2.10 m.

I tried a bit with the floor plan again. I would do it like this now, although the staircase is a normal quarter turn without landing (program error).

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In the roof I only see a gable roof - without knee wall a hipped roof is nonsense in this case and looks terrible in my opinion.
Maybe open the ceiling in the entrance up to the roof for a small gallery. Put in nice large windows there - it would look something like this:

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Ok, just playing around.

The staircase does not have to be 1m wide for us. I tried a 90cm staircase. That’s completely fine for me. But none of us are very tall either.

Back to the gable roof. If we now go with a gable roof, the builder will certainly suggest taking a real reinforced concrete ceiling. That probably costs significantly more in connection with the (cheaper) gable roof than a hipped roof and wooden beam ceiling, or am I wrong?

You are still expecting answers from the OP? Well, at least his behavior matches the development plan, which raises more questions than it answers. Because actually he sets the gable and hipped roof in the usage template. The legend confirms this. However, the reference to the legal basis is missing. According to the Building Code, roof shape and pitch cannot be fixed. That has to happen in a state design statute, which can also be integrated in the development plan, but then must be correspondingly marked, which is not the case here. The justification for the development plan does not help either – on the contrary: it even talks about "simultaneous fixation of roof shape and pitch". But in the plan document I find no indication of the roof pitch. IMHO, the fixing of the roof shape is invalid.

Someone built a shed roof in that building area although it is not stated like that in the development plan. Either he just did it that way or talked to the building authority beforehand and got it in writing. If you check with the building authority beforehand it should be possible.

I can well imagine a bungalow with a staggered shed roof.

The builder can’t do that.

I don’t see the stair width as important here, it could also be 90. It’s not a main staircase after all.

I see it the same way regarding the staircase. 90 is enough...

I would like to go with the living rooms in this direction:

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But I can no longer fit a staircase and the rooms are again next to the "loud" rooms. What do you think?

I like the floor plan very much from the room layout perspective. But a staircase is a must. It unfortunately doesn’t work without one. I also prefer the L arrangement of the living, dining and kitchen area.

If we switch to a gable roof now, the BU will surely suggest using a proper reinforced concrete ceiling.

With a gable, he can use a beam, which is easier than with a hip roof. I can't follow your train of thought.

Saved mine once..

Subwoofer...check
Washing machine...check
Short cables...check
Southern kids...check

I had left out the stairs - sorry, I don’t believe in them.
But if, one would have the choice whether to move them to the private area in the back. That would have the charm that the double door with lots of light leads to the dining area. Also, one could put a window behind the stairs and would have the hallway illuminated. However, the 2nd storage room would be lost.
Otherwise, the variant remains as in the first attempt.

Here are both variants sketched, whereby the space under the straight stairs might need to be made by the carpenter or directly by the stair builder for more "fill volume".

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I sat down with my wife today and we went through the two floor plans. We both prefer the lower one a bit more. The main reason for her is that the master bathroom is not next to the bedroom. Honestly, that wouldn’t be so important to me.

One question I still have about the lower floor plan: If you take the stairs downstairs… Could you then use a staggered shed roof? So that the left area in the bungalow still has rooms?

In terms of appearance like this…

With a saddle, he can go on binders, easier than with a barrel vault. I can't follow your thought.

The question is what kind of ceiling construction he uses for the ground floor.

We like the lower one a bit more. The main reason for her is that the main bathroom is not next to the bedroom.

You mean Katja's? – I didn’t understand that one regarding its two staircases.

Could you then take an offset shed roof? So that the left area in the bungalow still has rooms?

Yes, you could. But I was rather thinking of the bungalow without attic conversion: living and sleeping with an open roof underside, higher part of the roof and skylights in offset (gable end); lower side only attic space.

The question is what kind of ceiling construction he will use for the ground floor.

Yes, of course. Wooden beams or concrete. But why do you think he would want to use concrete precisely with a gable roof?