ᐅ Single-family house with 170 sqm, with the option to build a multi-family house on a 900 sqm corner lot

Created on: 5 Feb 2021 15:41
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BauFamily
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BauFamily
5 Feb 2021 15:41
Hello everyone! We have been following this forum for about a year now, ever since we started planning our house. We are finally ready to share our floor plan with you and would appreciate your feedback. We are very curious about your suggestions. Overall, we are quite satisfied with the current design, but we wonder if it is feasible from a structural standpoint. We have managed to include all the important aspects in the floor plan. If necessary, we could consider reducing the living area, but we feel that any changes might compromise the entire concept. Therefore, we hope that the design will also be acceptable in terms of costs.

Thank you very much in advance for your input and suggestions!


Development Plan / Restrictions
Plot size: 850sqm (9145 sqft)
Slope: No
Floor area ratio: 150
Floor space index: 2 full storeys
Building envelope, building line and boundary line: see plan
Edge development: see plan
Number of parking spaces: 2
Number of storeys: 2
Roof type: freely selectable
Style: open
Orientation
Maximum heights/limits: Eaves height: 7.50m (24.6 ft) and upper construction limit: 11.50m (37.7 ft)
Additional requirements: up to 3 residential units possible

Owner’s Requirements
Style, roof type, building type
Basement, floors: Basement + 2 full storeys (upper floor without sloping ceilings, if I understand the development plan correctly)
Number of occupants, ages: 4 people (37, 36, 6, 4 years)
Space requirements on ground floor and upper floor
Office: for family use or home office? Guest room + office, mixed use
Number of overnight guests per year: 12 times
Open or closed layout: closed
Traditional or modern construction: a mix of both
Open kitchen, kitchen island: We clearly prefer a large, closed kitchen with a pantry.
Number of dining seats: We have a large family. 10-12 people should be able to sit at the table during family gatherings.
Fireplace: undecided
Music/speaker wall: no
Balcony, roof terrace: on the north side, mainly for drying laundry
Garage, carport: garage plus carport in front
Utility garden, greenhouse: Possibly a small allotment garden in the northwest of the plot, including raised beds and a greenhouse
Additional wishes/particulars/daily routine, feel free to explain why certain things should or should not be included

House Design
Who designed the plan: us

What do you particularly like? Why?

Please provide some detailed points so you can better understand the design:

1.) Entrance vestibule: Currently, we have a very narrow hallway that often gets dirty from the children. We always have to walk through it to get to a child’s room. We want to avoid this in the new house. That is why we included the vestibule. The question is whether this vestibule might be too small (see under “What don’t we like?” point 2).

2.) Large built-in closet in the hallway for storage

3.) Large kitchen combined with the north terrace: Some might wonder why we planned a terrace on the north side. We prefer not to sit in direct sun while eating. Additionally, the north terrace offers good privacy from neighbors. We plan to cover this terrace and will use the balcony on the first floor.

4.) Balcony as a “utility balcony”: We want to do laundry and hang it to dry on the same floor. The balcony will be used for hanging laundry.

5.) Bay window: The bay window in the living room creates a cozy corner, expanding the space and giving it a conservatory feel.

6.) Location of children’s rooms and living/dining areas: These rooms face west and get plenty of evening sunlight when everyone is at home.

7.) Option to divide the house into several residential units: According to the development plan, up to 3 residential units are possible. We have planned the stairs etc. so that, with minor adjustments, the house could be divided into multiple units if needed. This is a neat option and should increase the resale value.

What don’t you like? Why?

1.) “Narrow” driveway: Due to the location of the plot, the driveway position is fixed. It is 5.50m (18 ft) wide, but the lowered curb is only 4.50m (14.8 ft) wide. Therefore, a proper double garage is not possible. Two cars side by side under the carport will be tight. What do you think?

2.) This relates to point 1: The vestibule might actually be too small.

Personal budget for the house, including fittings: 450,000 EUR

Preferred heating technology: air-to-water heat pump combined with underfloor heating and photovoltaic system

If you had to give up something, what details or fixtures
- you can give up: overall living area, if the budget gets tight. Especially the children’s rooms don’t have to be very large. But then the question arises whether making the western wall narrower would cause the ground floor living and dining areas to feel too cramped.

- you cannot give up: [no text provided]

Why is the design as it is? For example:

Because it fits our individual needs well.

What do you think makes it especially good or bad?

The option for multiple residential units and the practical use of space behind the stairwell make it a good design. The downside is that the children’s rooms are actually too large, but we couldn’t find a better solution because the living room (distance from sofa to TV) becomes too cramped otherwise.

What is the most important/basic question about the floor plan in 130 characters?

We have spent a long time (over a year) designing the floor plan to suit our needs while keeping it as simple as possible. Would you say we achieved this? In your opinion, is the floor plan “efficient”?

One more consideration, which is important but secondary: According to my calculations, the development plan allows, besides the 2 full storeys without sloping ceilings, also an attic with sloping ceilings and a high knee wall of 1.40m (4.6 ft) (basement protrudes 50cm (20 in) above ground). We are considering building this attic but initially leaving it unfinished for cost reasons. This would give us the option to finish it later if our family grows. What do you think? What would be the additional costs for this extra unfinished (or perhaps finished) attic?

2D floor plan of a house with living room, kitchen, hallway, office, terrace and garage


Ground floor plan without furniture: living/dining room, kitchen, office, hallway, WC, garage.


Basement floor plan: rooms 1–4 and hallway with stair area.


Upper floor plan: balcony, bathroom, utility room, hallway, bedroom with dressing room, children’s rooms.


Floor plan of one level: 2 children’s rooms, bedroom with dressing room, bathroom, hallway, utility room, balcony.


Site plan of building plot with north orientation, driveway and 900 sqm (9688 sqft) area


Top-down floor plan of a house with multiple rooms, stairs, extension and surrounding garden.
11ant5 Feb 2021 15:57
I am still missing the building window.
BauFamily schrieb:

This driveway is 5.50 meters (18 feet) wide, but the curb cut is only 4.50 meters (15 feet) wide. Therefore, it’s not really a double garage.

This conclusion is nonsense.
https://www.instagram.com/11antgmxde/
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BauFamily
5 Feb 2021 16:17
Sorry, the construction time frame was overlooked.

What do you mean by nonsense? Are you saying that, in theory, you could also drive over the sidewalk/pavement?

Site plan with outlines, 900 sqm (9,688 sq ft), access road and property boundaries
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haydee
5 Feb 2021 16:24
Where is the second parking space?
The driveway is wide enough. Cars can easily maneuver in curves.

The entrance area doesn’t add value—in fact, it’s the opposite. Trash bins, bicycles—all tight around the car. It also doesn’t provide space for a coat rack or for cleaning up after the kids.

I would revise the kitchen layout. It doesn’t look ergonomic. The kitchen becomes quite dark due to the roof extension.

Set up the pantry properly. The utility room as well.

The bathroom shower is very tight.
Use graph paper to draw everything to scale, including existing or desired furniture.

Remove the roof extension over the terrace.
Remove the entrance area.
Double garage or carport.
Office upstairs.
Laundry room downstairs and a utility room of a practical size.
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BauFamily
5 Feb 2021 17:28
haydee schrieb:

Where is the second parking space?
The driveway is wide enough. Cars can definitely make turns.

You’re right, it should actually be wide enough.

The entrance hall doesn’t really add any benefit—in fact, it’s the opposite. Trash bins, bikes, everything is squeezed past the car. It also doesn’t provide space for coats or to clean off kids.

But the bikes and trash bins are right next to the driveway (see picture). So nothing has to be squeezed past the car, right?

I would revise the kitchen layout. It doesn’t look ergonomic. The kitchen will get quite dark due to the canopy.

In what way is it not ergonomic? Could you please explain that in more detail? The canopy might indeed make it dark, though we planned for a large window front (see picture).

Set up the pantry properly. Same for the utility room.

The shower in the bathroom is very tight.
Use graph paper to draw everything to scale, including existing or planned furniture.

Attached are the pictures of the bathrooms again. The guest WC with the shower might be tight but should work as a backup shower. The main bathroom is large enough, right?

Remove the canopy over the terrace.
Remove the entrance hall.
Double garage or carport.
Office upstairs.
Laundry downstairs and a suitably sized utility room.

If the entrance hall is removed, then the office downstairs goes as well. We actually like having an additional multipurpose room (office + guest room) on the ground floor, especially looking ahead to the future to stay flexible and to use the room differently when older. The downside is the smaller living area—you’re right about that. But currently, we don’t see a better solution.

What do we gain by moving the laundry downstairs? About 4.5 m² (48 sq ft) each for two washing machines or pantry storage is more than enough? The classic utility room would be in the basement.

Floor plan of a house: living room, office, hallway; garage with 3 parking spaces; garden and pool.


Modern open kitchen with island, three bar stools, white cabinets and terrace door to garden.


Floor plan: room 5 downstairs, children’s room 2 on the left, bathroom upstairs center, utility room right.


Floor plan: living and office area with sofa on the left, guest WC in the center, desk on the right, hallway above.
Y
ypg
5 Feb 2021 20:30
In your kitchen visualization, the Terra canopy is missing. Therefore, haydee is right when she says that the kitchen will be very dark.
BauFamily schrieb:

We currently have a very narrow hallway,

You have planned that now as well. How come?
BauFamily schrieb:

We designed the stairs and so on so that, with few modifications, the house could be divided into several dwelling units (just in case). This option is quite appealing.

For that, your house on the ground floor has the feel of an apartment. The staircase is also more of a compact space-saving design.
The more people use building software, the more it becomes clear that no real thought is given to size, comfort, practicality, or structural requirements. They use the software, take colorful screenshots, and everything looks great.
Just like above: the bed is a narrow placeholder of about 165cm (65 inches)? With a 2-meter (79 inches) bed, you might just scrape along the wall but won’t be able to walk around it.
Plan for a 2-meter (79 inches) bed, a stairwell opening of at least 2.20 x 2.50 meters (7.2 x 8.2 feet), and address the long hallway—these would be my starting points.