ᐅ L-Shaped Floor Plan – What Are Your Thoughts?

Created on: 22 Mar 2020 23:12
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Ypsi aus NI
Hello dear forum members,

as mentioned in the introduction thread, here is the current status of our house planning.
The plot is located in the second row and is accessible via the courtyard of the front house (shared driveway).
Currently, there are existing buildings on the plot that need to be demolished.

We have already had a few planning discussions with construction companies, and honestly, I have to say I am shocked by their “professionalism.” We have now specifically selected companies where consultation takes place with architects and not, for example, a trained cook (no joke, that actually happened!). In addition, we are already annoyed by the question: “What do you want to build? A shell bungalow or a single-family house?” When we say: “Let’s work out the floor plan step by step and see which shape and roof pitch result, then we can still decide the official house type,” we only get strange looks. There were no independent ideas tailored to the plot... When asking what they would recommend, we just get a questioning look. I have to say, I expected more, but maybe it is normal that you have to bring the initial idea for the floor plan yourself...

Due to the current situation, further appointments with the construction companies are difficult to arrange. So we are using the time to plan ourselves. After tapping into your collective intelligence in the first step, we will then send our draft to the companies including the issues we still see. They will then have the chance to optimize and price our draft for the next consultation.
For us, the heart of the house is the ground floor; the upper floor follows from the ground floor plan (room layout, bathroom above utility room, windows, etc.). The upper floor is located on the exterior walls of the ground floor to the right (north) and bottom (east) of the plan, while to the left (south) and top (west) it is limited to the “main rectangle” or recessed by 1.5m (roughly 5 feet).

Attached you will find the completed questionnaire. Unanswered questions I have not included anymore.

We are very curious about your opinion!

Many thanks in advance.
Ypsi aus NI

Development Plan / Restrictions
Plot size approx. 700 sqm
Floor area ratio (FAR) 0.3
Site coverage ratio 0.3
Building window, building line and boundary 3m (10 feet) from the neighbor’s boundary
Number of floors 1 full story
open development


Client Requirements
Style, roof shape, building type (Mediterranean) urban villa
Basement, floors 1.5 floors
Number of occupants, age 2 people + planned children
Space requirements on ground floor and upper floor GF = 130-140 sqm (1400-1500 sq ft), UF = 50-60 sqm (540-650 sq ft)
Open or closed architecture open
Conservative or modern construction modern
Open kitchen, kitchen island kitchen island
Number of dining seats 6-8
Fireplace wood stove
Balcony, roof terrace possibly roof terrace (flat roof on both volumes)
Garage, carport double garage

House Design
Planned by: Do-it-Yourself
What do you like in particular? Why? Shape fits well into the plot, living area is somewhat separated, kitchen and dining table as central element
What do you dislike? Why? Is the staircase suitable? Is the entrance spacious enough? Can the private rooms on the ground floor be arranged this way?
Preferred heating technology: heat pump

Why did the design develop this way?
We consider the plot relatively narrow. Normally, a rectangular house shape would make sense, using the full width of the plot. But then you lose the best side (south). The floor plan was developed according to “form follows function” and we really like it now (I mean the L-shape, not necessarily the individual room layout).
An interesting idea is not to realize the two wings on the upper floor with a hip roof, but instead to have a flat roof to possibly create one or two roof terraces.
The original wish was for a bungalow, but we realized that it consumes too much floor space. A good compromise for us is to have the master bedroom and master bathroom on the ground floor, and the children’s rooms plus office upstairs.

What is the most important/basic question about the floor plan summarized in 130 characters?
Are there fundamental planning mistakes we have overlooked so far?

Floor plan: open kitchen, dining area, living room, hallway, bathroom, bedroom, utility room, guest WC.


Floor plan of a building with five rooms (Room 1-5) and area information in sqm.


Aerial view of a plot: house with double garage, red marked outline, adjacent street.
11ant23 Mar 2020 14:21
Ypsi aus NI schrieb:

Unfortunately, I haven’t figured out yet how to quote text nicely in passages,
Highlight the passage with your mouse, then the option "Quote" will appear. Even I can manage that.
Ypsi aus NI schrieb:

The goal is to have full ceiling height upstairs, which leads to the recessed design because: We are not allowed to build two full stories, so the upper floor (UF) must be smaller than the ground floor (GF).
Or the ground floor larger than the upper floor, which is how you thought of it. Are you really taller than 2.3 meters (7 ft 7 in)?
Ypsi aus NI schrieb:

During the planning meetings, I specifically asked about the higher costs due to structural engineering if the UF is recessed. The answer was: 'That will probably hardly make a noticeable difference. Besides, you then get smaller rooms (in terms of floor area, so cheaper),
The architect is probably still very inexperienced; that’s wishful thinking.
Ypsi aus NI schrieb:

A hipped roof is definitely cheaper than a flat roof, right?
Hip roof is more expensive than gable roof, which is more expensive than shed roof. A flat roof that is almost level and waterproof is definitely costly, yes.
Ypsi aus NI schrieb:

By flat roof, I mean a roof that can also be walked on and used as a terrace. Is such a roof still cheaper than a hipped roof?
Even without fall protection for the permitted use, the flat roof is not exactly the thrifty option; how expensive a hip roof is depends on the floor plan—but there are also other types, like a shed roof.
Ypsi aus NI schrieb:

According to the architect, the roof terrace (not a covered loggia) does not count towards the living space calculation.
Less, yes, but not zero. A quarter, if I remember correctly, although building regulations for full stories don’t pay much attention to the living space ordinance.
Ypsi aus NI schrieb:

That’s actually the very first time I’m reading and hearing that!
Better late than never. For downpipes, the name is no coincidence, and the upper floor is usually the floor divided more intricately—and in the case of a pitched roof, there’s also the headroom sensitivity of the stairs.
Ypsi aus NI schrieb:

If I had another idea, I would have already incorporated it. But I don’t.
Bathroom above bathroom or bathroom above utility room is no rocket science, right?
Ypsi aus NI schrieb:

If I thought the floor plan was perfect, I wouldn’t be posting it here...
Please do share successful plans as well; we’re not just vultures here.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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Ypsi aus NI
23 Mar 2020 14:33
11ant schrieb:

Or the ground floor larger than the upper floor, that’s how you planned it. Are you really taller than 2.30 meters (7 ft 7 in)?

I don’t understand the point of the question?
11ant schrieb:

Bathroom above bathroom or bathroom above utility room is not rocket science (?).

I never claimed that either.
11ant schrieb:

Hip roof is more expensive than gable roof, which is more expensive than shed roof. Flat, almost flat, and waterproof is expensive, yes.

That’s where I expect the added value from the architect. Hopefully, she will determine the best option for the roof shape, taking into account the requirements (preferably without sloped ceilings)...
11ant schrieb:

Highlight the text with the mouse, then the “Quote” option appears.

That should have worked now. Thank you!
11ant23 Mar 2020 14:39
Ypsi aus NI schrieb:

I don’t understand the purpose of the question?

The definition of a full story depends in most German states—and in Northern Ireland, the peculiarities of BE/BB don’t apply to you—on the proportion of floor area exceeding a clear height of 230 cm (7 ft 7 in).
Ypsi aus NI schrieb:

I never claimed otherwise

So what is the issue then?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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Matthew03
23 Mar 2020 14:44
Ypsi aus NI schrieb:

Is that so? I mean a flat roof that can also be walked on and used as a terrace.
Is such a roof still always cheaper than a hip roof?

In our case, it was like that.
I was also referring to the absolutism of your statement, which is inaccurate. Construction often involves a "it depends," and roof types are no exception. For us, the flat roof actually cost less than the gable roof. It was completely flat, waterproof, and greened. But I don’t think that’s the general rule.
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Ypsi aus NI
23 Mar 2020 15:20
The whole matter of the roof, especially regarding its shape and the knee wall, is still a bit confusing to me... Particularly your comments about the costs, as they are completely opposite to what we have heard so far.

So, I would say: it depends... on what the architect will develop.

I just had a new idea for the layout of the bathroom and bedroom, I will sketch it out and post it soon.
manohara23 Mar 2020 17:40
11ant schrieb:

Originality should be used like a spice—not like a main filling.