ᐅ First Own Single-Family Home Floor Plan – Looking for Suggestions

Created on: 22 Aug 2017 18:05
T
Tobi F.
T
Tobi F.
22 Aug 2017 18:05
Hello everyone,

We recently purchased a plot of land and are currently in the early planning stages for our future home. We are trying to create an initial design ourselves, with some experience (my brother-in-law is currently building), before consulting an architect or a general contractor/building company.

The plan is for a KFW 55 house including a photovoltaic system (about 4-5 kW) with approximately 150-170 m2 (1,615-1,830 sq ft) of living space. On the ground floor, there will be a large living/dining area, a guest room, and a bathroom with a shower. The upper floor will have three children’s bedrooms, a master bedroom, and a bathroom with a bathtub. The house will have a basement, but we have not yet considered the layout for it. The garage/carport is planned to be positioned facing northeast.

The following open questions have come up during our planning:

1) Staircase
  • Is an L-shaped staircase the right choice?
  • What is the best way to design a staircase so that space is not wasted, but walking on it remains comfortable? We are looking for a good balance.
  • Are there any recommendations regarding width, height, and tread overhang?
  • Are there standard dimensions for precast concrete stairs that we should consider?

2) Roof design
  • Which roof shape is best from the perspectives of energy efficiency (photovoltaics), cost, and the feeling of space? Below are our conclusions.
  • Hip roof optionAdvantages: no sloping walls inside, cost-effective, can be built as a cold roof; Disadvantages: lower pitch angle and less area suitable for photovoltaics
  • Symmetrical gable roof option (approx. 30° pitch) – Advantages: optimal for photovoltaics; Disadvantages: for cost reasons, this might only be feasible with sloping walls on both sides, large roof area that is hardly usable if there are no sloped ceilings
  • Asymmetrical gable roof option (approx. 30° / 22° pitch) – Advantages: also good for photovoltaics, sloping wall only on one side (less favorable side in terms of orientation/location), a compromise between cost and attic space; Disadvantages: sloping wall on only one side, aesthetics

I would really appreciate constructive ideas, suggestions, and opinions on our designs.

Thank you very much in advance!


Top-Down floor plan of a house with multiple rooms and furniture

3D floor plan of a house with kitchen, dining area, and living room from a bird’s eye view


Small white house with red roof on green plot as a 3D model

Small 3D house on green plot with red roof, shown in perspective

3D house model on green plot with red roof
T
Tobi F.
22 Aug 2017 18:29
Here are two drawings of the floor plan:


Floor plan of a residential house with a staircase in the center and several rooms.

2D house floor plan with staircase and multiple interior rooms in line drawing
11ant22 Aug 2017 18:30
Tobi F. schrieb:
Hip Roof Option - Advantage: no sloped walls, cost-effective,

I don’t understand what you mean by "no sloped walls." The hip roof is at most more cost-effective compared to the half-hip roof, but certainly not compared to the gable roof.
Tobi F. schrieb:
Gable Roof Synchronized Option (approx. 30° pitch)

By "synchronized," do you mean "roof pitch matching the optimal angle for photovoltaic panels"?
Tobi F. schrieb:
Are there any experiences regarding the width, height, and overhang of the steps?

Check out: https://www.hausbau-forum.de/threads/grundrissplanung-unbedingt-vor-beitrag-erstellung-lesen.11714/ – it includes the frequently requested questionnaire before the introduction to the topic of stairs.
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C
Curly
22 Aug 2017 18:55
I would forget the floor plan and start over from scratch. The entrance and staircase area as it is now is not suitable—too narrow and dark.

Best regards,
Sabine
11ant22 Aug 2017 19:17
Curly schrieb:
I would forget the floor plan and start over.

What would I have to be smoking to make any sense of that?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Y
ypg
22 Aug 2017 19:25
11ant schrieb:
What would I have to smoke to interpret anything there at all?

You don’t need to smoke anything for that – she probably means the bottleneck leading toward the open-plan living area [emoji2]