ᐅ Single-family house floor plan approximately 165 m² plus basement

Created on: 30 Aug 2022 21:16
G
Gregor_K
Hello everyone,

My wife and I purchased a plot of land last year and are now ready to start the construction project. Over the past few weeks, I have spoken with four general contractors and gathered quotes. In the coming weeks, I plan to choose one general contractor; at the moment, two are in the final running. Several floor plans have been developed, and I have posted the one we like best here. The floor plan currently does not include furniture, but once we decide on a contractor, I will finalize it with the contractor/architect unless a better plan comes up.

Of the two general contractors we are considering, one offers a planning contract for service phases HOAI 1-4. The other does not provide this, so we will need to hire a separate architect (HOAI 1-3).

Having followed various discussions in this forum for a while, I would appreciate your feedback on the floor plan. This is our first build; my knowledge so far comes from seminars by the Builders’ Protection Association and this housebuilding forum.

Development Plan/Restrictions
Plot No. 194
Plot size: 680m² (7,300 sq ft)
Slope: yes, descending about 1 to 1.5m (3 to 5 feet) from the access road
Site coverage ratio: 0.4
Floor area ratio: N/A
Building envelope, building line and boundary: see blue line on the development plan; approximately 12.95m x 20m (42.5 ft x 66 ft)
Setback from boundary: 3m (10 feet)
Parking spaces: 1 to 2
Maximum building height: 2 full floors
Roof style: no specification in the development plan

Homeowners’ Requirements
Style, roof type, building type: Single-family house, gabled roof with purlins if possible
Basement, floors: 2 full floors plus basement
Number of occupants: 5 people, 2 adults and 3 children
Office: Home office room
Occasional guests: none or at most 1 to 2 per year
Open kitchen, kitchen island: Yes, open kitchen, but kitchen island not absolutely necessary
Number of dining seats: 6
Fireplace: no
Balcony, roof terrace: not required
Garage, carport: Single garage to be located on the east side, plus at least 2 additional parking spaces on the northwest side of the property

House Design
Designer:
- Design by a prefabricated house supplier

What do you particularly like? Why?
We like the appearance of the house with the bay window; it looks stylish to us. Overall, it includes everything we need, such as a pantry, a relatively spacious dining area combined with the living room, 3 children’s rooms, and an office.

What do you dislike? Why?
The staircase could be positioned further from the entrance, but this is acceptable. The bathroom design still looks unfinished.

Price estimate according to architect/designer: €620,000 without ancillary building costs (no price negotiation)
Personal price limit for the house, including fittings: €650,000 without ancillary building costs

If you had to give up certain details/extra features,
- what you could do without: Items we can omit have already been removed, e.g., walk-in closet and storage room
- what you cannot do without: 3 children’s rooms, pantry, office, landing staircase, basement

Why is the design as it is now? For example:
Design from the planner following these specifications:

  • House with basement:

- 2 full floors or 1.5 floors with a high knee wall (e.g., 180cm (70.9 inches))
- Flexible roof type; we like a gabled roof with purlins or alternatively a hip roof or flat roof
- Ground floor plus upper floor should be between 165m² and 175m² (1,776 to 1,884 sq ft)

  • Ground floor:

- open kitchen + living room + dining area
- guest bathroom with shower
- entrance area should be usable for 5 people (space for shoe cabinets)
- pantry
- office room that can later be used as a bedroom in older age
- dining area close to the kitchen
- kitchen and dining area should be near the terrace

  • Upper floor:

- 3 children’s rooms (2 rooms at least 15m² (161 sq ft), 1 room at least 12m² (129 sq ft))
- master bedroom with or without walk-in closet, depending on what fits better into the floor plan
- optional laundry chute would be great but not essential
- preferably no separate children’s bathroom
- bathroom at least 10m² (108 sq ft), better if 12 to 14m² (129 to 151 sq ft), depending on the layout

  • General:

- staircase should not be located in the entrance’s dirt zone. A comfortable staircase would be great; ideally a landing staircase
- space for a single garage on the plot, i.e., no double garage
- access from the garage to the pantry would be nice but not essential
- no gallery
- no conservatory/glass extension
- covered access from garage to front door is not absolutely necessary

What is the most important/basic question about the floor plan in 130 characters?
Can the staircase be placed further away from the entrance? What do you think about making windows in the bathroom, master bedroom, and office narrower (window sill height)? Are the basement windows well positioned, especially those near the terrace?

Lageplan eines Baugebiets mit Grundstücken, Straßen und Gebäuden.


Ausschnitt eines Katasterplans mit nummerierten Parzellen und Straßenverlauf.


Kellergeschoss Grundriss mit Hobbyraum, Abstellraum, Vorplatz und Installation


Grundrissplan des Erdgeschosses mit Kueche, Essbereich, Wohnzimmer, Buero/Gaeste, Duschbad


Grundriss Obergeschoss eines Hauses mit drei Zimmern, Bad und Treppenzugang


Vorderfront eines zweistöckigen Hauses als Linienzeichnung mit Fenstern und Tür


Architekturzeichnung einer zweistöckigen Hausfassade mit drei Fensterachsen und zentralem Giebeldach.


Ansicht C: Linienzeichnung einer Hausfront mit Satteldach und drei Fenstern.


Frontansicht eines Hauses mit Satteldach, zwei Fenstern und Bodenlinie (Linienzeichnung).


Lageplan: Parzellen 190–204 an der Lindenstraße; rechteckige Grundstücke, Gebäudestrukturen.
11ant2 Oct 2023 11:21
Gregor_K schrieb:

@11ant Is it okay for you if we reduce to 85cm (33 inches) on the upper floor and 94cm (37 inches) on the ground floor?
Personally, I don’t work for your building authority nor do I have any stake in it. 85cm (33 inches) on the upper floor might be tight, you have to meet 90cm (35 inches) though (but probably measured at the top edge of the window frame; I’ve never dealt with pushing the limit down to the very last detail). On the ground floor, you could go lower as well. At what height countertops, faucets, sofa backs, and similar elements can be passed without hitting them depends on your specific situation. Cutting bricks at this height is straightforward; however, I wouldn’t go below 5cm (2 inches).
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Y
ypg
2 Oct 2023 12:24
Gregor_K schrieb:

Is it okay for you if we reduce it to 85cm (33.5 inches) on the upper floor and it would be 94cm (37 inches) on the ground floor?
Without looking at the pictures, it should be noted that you must not compare RBM with the top edge of the finished floor.
G
Gregor_K
2 Oct 2023 12:47
11ant schrieb:

Personally, I neither work at your building authority nor do I have any stake in this. 85cm (33.5 inches) on the upper floor might be tight, but you have to meet 90cm (35.4 inches) (probably measured at the top edge of the window frame; I never pushed it to the very limit). On the ground floor, you might be allowed less. You can only know in each individual case from which height countertops, faucets, sofa backs, and the like can be swung past without hitting. Cutting stone at this height is straightforward, but I wouldn’t go below 5cm (2 inches).


Why do I have to meet 90cm (35.4 inches)? I thought it should be 80cm (31.5 inches) since we are below the 12m (39.4 feet) fall height. These are all rooms without countertops, faucets, sofas, or any of these. What do you mean by “cutting stone is straightforward at this height”? Does that automatically make it complicated on the ground floor? Is that why I have full bricks on the ground floor and half bricks on the upper floor?
ypg schrieb:

Without looking at the pictures, it should be noted that you should not compare RBM (raw construction dimension) with the top edge of the finished floor.


RBM = raw construction dimension

Top edge of the finished floor = top edge of the finished floor

Correct?

From my point of view, aiming for 85cm (33.5 inches) from the top edge of the finished floor would be advisable, right?
11ant2 Oct 2023 15:15
Gregor_K schrieb:

Why do I have to meet 90cm (35 inches)? I thought it should be 80cm (31.5 inches).
I don’t check the federal state of the person asking before every answer. Yes, in many states 80cm (31.5 inches) is sufficient.
Gregor_K schrieb:

What do you mean by saying it’s easy to cut bricks horizontally? Does that automatically mean it’s more complicated on the ground floor? Is that why I have full bricks on the ground floor and a half brick on the upper floor?
It has nothing to do with the height above ground. I meant that bricks are easy to cut horizontally (unlike vertically / parallel to the webs, where fraying of the webs—and often poor-quality cutouts—occur). If the builder lays regular bricks without special edge bricks, after four courses you reach 100cm (39 inches) above the raw floor slab (which is 85cm (33.5 inches) above the finished floor). For 80cm (31.5 inches) height, the fourth course of bricks must already be cut down. This is usually done by measuring on site; hardly anyone uses prefabricated half-height bricks for this. A typical 11ant house would, of course, be planned to minimize waste here, but so far no general contractor has such bricks available. Currently, only 11ant Edition custom-plan houses are quietly in the pipeline, but those won’t be available until 2024. ;-)
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/