Floor plan planning single-family house / bungalow - 155 sqm

A bedroom with a width of 3.30m should be sufficient. We currently have a 1.80m bed, so there is still 0.75 m of space on each side.

Most people with more than one child quickly end up with beds 2 m wide. :) Or even with a family bed. Babies also often sleep in the parents' room, wardrobes have to be accommodated, and so on.
Do you know families with three children? Ask them what their ideal house looks like. Or show them your design.
150 sqm for 5 people plus an office space is almost impossible to implement sensibly.
And as a person without children, you can live wonderfully minimalist. As parents, you want two things: sleep and storage space. ;)
And regarding the dining table with children: Two Triptraps at the dining table, and you can forget about the nicest standard dining room layout.

The budget will be tight for what you want. Six months ago, the 160 sqm bungalow of a relative in BW was supposed to cost 600,000. They then put the project on hold.

The expensive construction costs were one reason why we discarded the initial plans for a 2-story single-family house with a basement (140 sqm living space) (we had an offer for €750,000 - excluding additional construction costs, landscaping...). The cut KFW subsidy and rising interest rates also quickly add to this. Therefore, the idea arose to reduce ourselves to the essentials and also to make use of the size of the plot. According to the development plan, we would have to maintain a knee wall of 50 cm for 2-story construction, which we also do not like or which severely restricts the space upstairs.

At first (once again) I would be interested in the design of the outdoor area. Where and how much has to be filled? 2m over 35m sounds moderate at first, but with a bungalow of that size it will be tricky again.

Is there actually a site plan with elevation points?

Of course, also an important point! There is no site plan. According to Bayernatlas, the north-south slope is 1.20 m over the area where the house is ultimately supposed to stand. In my naivety, I thought so far that this would not have a significant impact and might be modeled with the earthworks.

I also think it's nice, but I also see the problem that storage space will be tight with 5 people in the bungalow.
Where do you want to store stuff that many people keep in the attic?
Suitcases, Christmas decorations, tree stand, ski boots, you name it. General storage space.
The technical room should also serve as a utility room in that floor plan, so all cleaning and washing supplies have to be stored there alongside the house technology. Unless you and your 3 kids live completely minimalist, that will be tight.

Furthermore, I agree with the previously mentioned criticisms. The floor plan is convoluted and the absence of a hallway makes rooms into passageways. Not good. Also, the budget could be tight at 500k all in. Is the plot included in that, or is the 500k only for the house?

My tip: write down in writing what is important to you, every single point, and give it (without your own planning!) into the hands of a good architect. You will be amazed. :)

Edit: Also post it with proper dimensions. For example, based on the pictures I could imagine that the children’s rooms are far too narrow and tube-like. It will be a struggle to furnish them.

- We had planned storage above the entrance area + technical room as an attic/ crawl space and above the garage.
- The plot is already owned but not yet developed.
- The plan was currently created DIY with RoomSketcher. Is there any way to quickly add dimensions here? Or does anyone have tips on which program makes this quick and easy? ;)

The underlying idea is that the cooking/dining area serves as a central room where a large part of daily life takes place.

It is already clear that the kitchen or the lively dining area is supposed to be the central family meeting point. But the kitchen is too small for that, the family is planned too large, and the door to the hallway is poorly positioned next to the kitchen unit.

If you want to avoid the kitchen as a passage room, the alternative would then be a narrow, windowless, and quite long hallway to reach all other rooms.

No, absolutely not. It may be that it turns out like that for you. Not for me. Floor plans are not just in black and white. You only need to plan one corner too many, move a wall, and suddenly a floor plan works completely differently, especially well or really badly. By the way, a windowless hallway works if it is straight and narrow, even in a power outage. Yours, a angled windowless hallway, does not.

In case it gets hectic five times in the morning, so you have an alternative option here.

But then the alternative option would also have to be relatively central and/or easy to reach. People don’t like to go to the other end of the house because of alternative options. By the time you get to the toilet, it is often too late. I am just imagining the 13-year-old with a full bladder who can’t get into the bathroom because his sister is bathing. And you have nice guests. I don’t believe the teenager will quietly squeeze past you. He’ll pee out the window if necessary – I’d bet on that. And he’ll do it every day because it’s fun.

Please explain exactly what is meant by that.

Many dimensions don’t work or are smaller than the norm.
Take, for example, a dining table with 8 seats: the table would have to be about 3 meters (more precisely 2.80) long. Since you then also plan the room with traffic space, you need at least an additional meter behind one row of chairs beyond the functional dimensions. So you need at least 5 x 4 meters just for the dining table. At least! Then comes a kitchen through which you don’t always have to pass next to the stove (danger for children or fast, hectic, or even normal occupants), so that it functions as a kitchen and not as a hallway replacement. This can basically be implemented very well. A little thinking around the subject is necessary as a layman… a room is not simply made up of 4 walls and a door.

Gladly a counterproposal

No, planning grows and takes time, so it is not done in one day. And I don’t have time for that. I have work, which of course comes first. I also don’t see a bungalow. That is relatively too expensive.

The bathroom also doesn’t work like this. There are hardly 50 cm between the shower and the tub. And a walk-in shower should be at least 120 cm longer, preferably 140 cm. And storage in the attic with three kids honestly won’t help you in everyday life.

I’m afraid if you really want three children and want to end up with 150 sqm, then you need an architect or a talented general contractor. This is not for DIY. Let go of “your” design and let the professionals take over.

Attached is a floor plan for a bungalow with four bedrooms – but that is 200 sqm.

150 sqm might really be a bit tight, of course it works better with 200 sqm, although the right half is already very close to our design. Unfortunately, our budget does not currently allow more. Maybe there will be a new KfW subsidy again in 2023..

I'm afraid if you really want three children and want to stay within 150 sqm, then you need an architect or a talented general contractor. This is not for DIY. Let go of "your" design and let the professionals handle it.

Realistically speaking, that sums up the situation quite well.

Show the size and access/approach to the property in the cadastral plan, it is not clearly visible on the aerial photo. You seem to plan the rooms and their effects in the floor plan, I’d say, "differently" than the pictures of the visual examples suggest. Try planning more conceptually than concretely, then wanting and succeeding will probably align better. Due to the apparent omission of the hallway, the kitchen is virtually in the middle of the actual foyer. Show the floor plans of the discarded evolutionary stages.

There is no real development of the bungalow floor plan, as the last floor plans still applied to the single-family house with 2 stories.