ᐅ Floor Plan Design for a Gable Roof House Measuring 9x13 m with an Attached 6x9 m Loft Extension
Created on: 24 Oct 2024 12:46
B
Biker99
Hello,
I came across this interesting forum yesterday and would like to take the opportunity to present my first floor plan draft here in the hope of receiving valuable advice. Often, being too focused on one direction limits ideas, so fresh eyes and new inspiration from others are always very helpful.
The general idea is to have the house built completely turnkey by a prefab house company, without any DIY efforts on our part. So far, no architect has been hired because I first wanted to try putting my own wishes and ideas on paper. I believe that with this DIY preliminary planning, there might be a better basis to go directly to an architect or even several prefab home providers to obtain feasible implementations and corresponding cost estimates.
I look forward to your feedback (and I’m already bracing myself...).
Development Plan / Restrictions
Currently, paragraph 34 applies. However, a design guideline is expected next year. The house has already been initially designed within the preliminary framework of this guideline.
The plot size is about 650 m² (7000 sq ft). It is a flat lot on a road with through traffic. Floor area ratio is 1.5. A detached garage will be attached to an existing building with two full floors plus an attic conversion on the right side, and next to the garage will be the new house.
The existing building is oriented with the eaves side to the street. The new house is planned to be positioned with the gable end facing the street.
The neighboring house on the other side (directly on the street) also has its gable end facing the street. Parking spaces: 2 (in front of the garage) plus a double garage (6 x 9 m (20 x 30 ft)). Number of floors: 1.5. Roof type: pitched roof, 25 to max 35 degrees. Style: conventional. Orientation: northeast to southwest.
Maximum heights/limits
The planned maximum height is about 8.5 m (28 ft).
The house must be set back 3 m (10 ft) from the front property line. The double garage should/setback 5 m (16 ft) from the front property line (unfortunately, no more was allowed in the planning approval inquiry, so from my view, only a front entrance to the house is currently feasible).
A direct connection from the double garage to the house is desired.
A corresponding positively approved preliminary building permit is available.
Homeowners’ Requirements
We want a modern house with a pitched roof.
A basement (possibly a partial basement) is desired and unfortunately required due to space constraints (not for living purposes; the basement should only serve as storage or a hobby/craft room).
For the knee wall height of the 1.5-story building, we envision 1.60 to 1.80 m (5’3” to 6’0”).
Number of occupants: 2 persons, 60 years old.
The house should be designed to be barrier-free as much as possible and should allow living only on the ground floor at an advanced age.
The total required area on the ground floor and upper floor should be around 180 m² (1937 sq ft).
The office will be used privately only.
We expect about 5 guest stays per year.
The living/dining area should be spacious and as open as possible.
A storage room between the double garage and the house (which also allows access from the garage to the house) is required.
The kitchen should be open with a cooking island or peninsula.
A central fireplace in the living/dining area is planned/desired.
A balcony with access from the gallery and the office is also desired. Alternatively, a loggia (either one-sided or spanning the width of the house) could be considered.
It is important for us to have an open gallery over the dining area where you can stay and where fitness equipment will also be placed.
The double garage measuring 6 x 9 m (20 x 30 ft) is fixed, as several vehicles need to be accommodated.
House Design
A first preliminary plan created using a 3D program is available.
What I like about the initial plan are the open sight lines, the gallery, and the large living/dining area facing the garden (southwest).
I especially struggled with the staircase design. Initially, I wanted a straight staircase with access from the living/dining area, but I discarded this for various reasons (also because a cellar staircase is still needed “underneath,” which makes a straight staircase less visually appealing).
After initially planning bathroom access from the sleeping area (which also leads to the dressing room), I eventually decided for an access from the hallway to allow a wider shower, a large double washbasin in front of the window, and a toilet with at least 90 cm (35 inches) clearance to the side.
What I don’t like yet is the gable side area between the open space and the office with the 90-degree angle.
In the (probably too) narrow utility room, the washing machine and dryer are to be accommodated.
Why did the design turn out this way?
For example, only about 18 m (59 ft) of plot width is available, which limits the house width to a maximum of 9 m (30 ft) with a set double garage width of 6 m (20 ft).


I came across this interesting forum yesterday and would like to take the opportunity to present my first floor plan draft here in the hope of receiving valuable advice. Often, being too focused on one direction limits ideas, so fresh eyes and new inspiration from others are always very helpful.
The general idea is to have the house built completely turnkey by a prefab house company, without any DIY efforts on our part. So far, no architect has been hired because I first wanted to try putting my own wishes and ideas on paper. I believe that with this DIY preliminary planning, there might be a better basis to go directly to an architect or even several prefab home providers to obtain feasible implementations and corresponding cost estimates.
I look forward to your feedback (and I’m already bracing myself...).
Development Plan / Restrictions
Currently, paragraph 34 applies. However, a design guideline is expected next year. The house has already been initially designed within the preliminary framework of this guideline.
The plot size is about 650 m² (7000 sq ft). It is a flat lot on a road with through traffic. Floor area ratio is 1.5. A detached garage will be attached to an existing building with two full floors plus an attic conversion on the right side, and next to the garage will be the new house.
The existing building is oriented with the eaves side to the street. The new house is planned to be positioned with the gable end facing the street.
The neighboring house on the other side (directly on the street) also has its gable end facing the street. Parking spaces: 2 (in front of the garage) plus a double garage (6 x 9 m (20 x 30 ft)). Number of floors: 1.5. Roof type: pitched roof, 25 to max 35 degrees. Style: conventional. Orientation: northeast to southwest.
Maximum heights/limits
The planned maximum height is about 8.5 m (28 ft).
The house must be set back 3 m (10 ft) from the front property line. The double garage should/setback 5 m (16 ft) from the front property line (unfortunately, no more was allowed in the planning approval inquiry, so from my view, only a front entrance to the house is currently feasible).
A direct connection from the double garage to the house is desired.
A corresponding positively approved preliminary building permit is available.
Homeowners’ Requirements
We want a modern house with a pitched roof.
A basement (possibly a partial basement) is desired and unfortunately required due to space constraints (not for living purposes; the basement should only serve as storage or a hobby/craft room).
For the knee wall height of the 1.5-story building, we envision 1.60 to 1.80 m (5’3” to 6’0”).
Number of occupants: 2 persons, 60 years old.
The house should be designed to be barrier-free as much as possible and should allow living only on the ground floor at an advanced age.
The total required area on the ground floor and upper floor should be around 180 m² (1937 sq ft).
The office will be used privately only.
We expect about 5 guest stays per year.
The living/dining area should be spacious and as open as possible.
A storage room between the double garage and the house (which also allows access from the garage to the house) is required.
The kitchen should be open with a cooking island or peninsula.
A central fireplace in the living/dining area is planned/desired.
A balcony with access from the gallery and the office is also desired. Alternatively, a loggia (either one-sided or spanning the width of the house) could be considered.
It is important for us to have an open gallery over the dining area where you can stay and where fitness equipment will also be placed.
The double garage measuring 6 x 9 m (20 x 30 ft) is fixed, as several vehicles need to be accommodated.
House Design
A first preliminary plan created using a 3D program is available.
What I like about the initial plan are the open sight lines, the gallery, and the large living/dining area facing the garden (southwest).
I especially struggled with the staircase design. Initially, I wanted a straight staircase with access from the living/dining area, but I discarded this for various reasons (also because a cellar staircase is still needed “underneath,” which makes a straight staircase less visually appealing).
After initially planning bathroom access from the sleeping area (which also leads to the dressing room), I eventually decided for an access from the hallway to allow a wider shower, a large double washbasin in front of the window, and a toilet with at least 90 cm (35 inches) clearance to the side.
What I don’t like yet is the gable side area between the open space and the office with the 90-degree angle.
In the (probably too) narrow utility room, the washing machine and dryer are to be accommodated.
Why did the design turn out this way?
For example, only about 18 m (59 ft) of plot width is available, which limits the house width to a maximum of 9 m (30 ft) with a set double garage width of 6 m (20 ft).
ypg schrieb:
That is not what I sketched.
I have worked on it again and hope to have better matched your design this time. It would be great if you and the other experts could comment on this one again.
Thank you very much
Here is the ground floor plan first
And the upper floor as well.
The idea here is to have the option of a sleeping area for two people and a bathroom both on the upper floor (for guests or the homeowners) and on the ground floor, with the ground floor designed to be as age-appropriate / accessible as possible.
The open gallery is currently on the south/southwest side, as you rightly suggested. The window design and placement could certainly be improved; the upper floor should be bright and open facing southwest.
I am also not really satisfied with the arrangement of the sanitary facilities yet. Perhaps, or most likely, you will have better ideas.

The exterior view from the garden side currently looks like this.
It would certainly have advantages to move the garage further forward or shift the house further back, as you suggested, toward the garden, as this would allow two windows instead of just one on the side of the dining area.

First of all, thank you for your critical comments!
The idea here is to have the option of a sleeping area for two people and a bathroom both on the upper floor (for guests or the homeowners) and on the ground floor, with the ground floor designed to be as age-appropriate / accessible as possible.
The open gallery is currently on the south/southwest side, as you rightly suggested. The window design and placement could certainly be improved; the upper floor should be bright and open facing southwest.
I am also not really satisfied with the arrangement of the sanitary facilities yet. Perhaps, or most likely, you will have better ideas.
The exterior view from the garden side currently looks like this.
It would certainly have advantages to move the garage further forward or shift the house further back, as you suggested, toward the garden, as this would allow two windows instead of just one on the side of the dining area.
First of all, thank you for your critical comments!
Biker99 schrieb:
I’ve worked on it again and hope I have now better matched your design.
It would be great if you and the other experts could comment on this one again.
Thank you very much
Here is the ground floor for now
Amateur opinion:
The hallway takes up a lot of space at 15.5 sqm (167 sq ft). It’s a zigzag when entering the house because you immediately run into a wall, then turn right and run into another wall. From there you look at the next wall (door to the open-plan room). This door might possibly be removed, but then you just have this endlessly long, narrow corridor.
I quite like the sleeping area with the walk-in closet, separated like an apartment (we unintentionally did this in our upper floor and are happy about it), but there is no guest toilet on the ground floor, as visitors shouldn’t have to walk through your private bedroom area.
Unfortunately, this is just some “criticism” without a concrete solution idea, but that’s what stands out to me.
On the upper floor, having the bathroom door open outward is not ideal, and the bathroom could be about 4 sqm (43 sq ft) smaller; as it is, it just creates unnecessary walking space and cost. Also, the extra room upstairs for hobbies and the fancy sports gallery—maybe you could specify your hobbies? You plan to live there as a couple and have guests occasionally, which is fine. But so much separation and extra rooms—each as a separate space—is probably more than needed.
We like the open plan for two people and also appreciate having some quiet time, but for me, this is too many individual, separated rooms.
Arauki11 schrieb:
Amateur opinion:
The entrance hall takes up a lot of space with 15.5 sqm (167 sq ft). It feels a bit awkward entering the house because you immediately face a wall, then turn right and run into another wall. From there, you look directly at the next wall (the door to the open-plan room). That door might possibly be removed, but then you'd have this endlessly long, narrow corridor. I like the bedroom area with the walk-in closet, separated like an apartment (we unintentionally did something similar in our upper floor and are happy with it), but then there’s no guest toilet on the ground floor, since strangers shouldn’t have to pass through your private bedroom area.
Unfortunately, this is just criticism without concrete solutions, but these are the points that stand out to me.
Upstairs, having the bathroom door open outward isn’t ideal, and the bathroom could be about 4 sqm (43 sq ft) smaller, otherwise it’s just unnecessary walking and expense. Then you have an extra room upstairs for hobbies and a fancy sports display; maybe you could specify your hobbies? You plan to live there as a couple and occasionally have guests, okay. But so much separation and so many extra rooms—do you really need a separate room for each?
We like open living together, but also some peace and quiet from each other, though for me, this is too many individual, separate rooms. You’re absolutely right about the bedroom door upstairs—I quickly redrew the floor plan this afternoon based on suggestions from "ypg" (though not copied exactly to avoid further comments). That will be changed.
Yes, the entrance hall or foyer also seems a bit (too) large to me, and I will try to make the “wall to the ground floor walk-in closet” more open and differently arranged.
The extra room upstairs is needed to display some cabinets for items that don’t tolerate much light over time. My/our hobby is classic cars and vintage racing bicycles. The "sports gallery" also seems a bit (excessively) large on the floor plan, although I like the idea of working on bikes there (which I won’t tell my wife, of course).
Arauki11 schrieb:
Amateur opinion:
The hallway takes up a lot of space at 15.5 m² (167 ft²). I will try to shift the staircase slightly towards the entrance. Maybe then the house can also be reduced from the originally planned 14 m (46 ft) back to 13 m (43 ft) without making the living area on the ground floor too small.
Biker99 schrieb:
even if not adopted 1:1 so there won’t be any more comments). This will be changedHaha, I just wanted to point out the relevant minor details. Biker99 schrieb:
I’ll try to move the staircase a bit closer to the entrance.Just keep in mind to allow enough space for movement. Arauki11 schrieb:
This could possibly be omitted, but then you end up with that endlessly long, narrow hallway.Exactly. The endlessly long and narrow hallway is actually only as long as the staircase is wide. The reason for this is to avoid an even longer hallway if the entrance is centered, creating a break instead. Besides, it also eliminates the need for the second hallway, which is disguised as a vestibule/storage room where laundry is presumably done. Personally, I wouldn’t put a staircase there either. Arauki11 schrieb:
But you don’t really need so much separation or extra rooms each having their own dedicated space.
There are two of us and we like the open layout as well as having peace when needed, but for me, that’s too many separate, closed-off rooms.We are two as well and enjoy having two floors. That’s enough for mutual quiet. We don’t need doors or small rooms for that. I just bring my hobbies into the open living area and take over the table there. Although, of course, having an additional separate room is not something you can dismiss outright.Similar topics