ᐅ Single-Family Home on a South-Facing Slope – Floor Plan Design and Tips?

Created on: 5 Feb 2019 11:39
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philipok
Hello everyone,

Things are getting serious for us: we're moving into the detailed planning of our building project. I would really appreciate your feedback on our amateur floor plan design. We are building in the Ore Mountains, in Germany’s highest-altitude town, Oberwiesenthal. Here, prices are still similar to those in former East Germany (I have compared and there is a significant price difference). So, here we go...

Development Plan / Restrictions
  • Plot size: 1,200 sqm (0.3 acres)
  • Slope: facing south
  • Site coverage ratio: unknown
  • Floor area ratio: unknown
  • Building zone, building line, and boundary:
    • 3 m (10 ft) from the property boundary
    • The properties to the south and west belong to my parents
  • Edge development: unknown
  • Number of parking spaces: 2 (carport on the east side of the house)
  • Number of floors: basement, ground floor, first floor, attic
  • Roof type: gable roof, pitch 35-38°
  • Architectural style: Bavarian farmhouse
  • Orientation: east-west, meaning roof slopes facing north-south
  • Maximum heights / limits: must adapt to the surrounding buildings
  • Other requirements: unknown
Homeowners' Requirements
  • Style, roof, building type:
    • Country/wood house (basement and ground floor with white plaster exterior; upper floor and roof structure with wooden planks in Tyrolean castle look)
    • Gable roof
  • Basement and floors
    • Basement partly used commercially (my wife’s naturopathy practice and my office, with separate access from outside/south)
    • Ground and first floors as living areas
    • Attic: half storage, half sleeping/chill area for our children with friends or guests
  • Number and age of residents
    • Kati (40) & Philipp (39)
    • Helene (10), Benedikt (8), and Valerie (6)
  • Space requirements on ground and first floors
    • see floor plans (approx. 150 sqm (1,615 sq ft))
  • Office: commercial use
  • Guest nights per year: 20–30
  • Open or closed architecture: closed (mountains, cold winters, constant wind)
  • Conservative or modern construction method: conservative
  • Open kitchen: yes; kitchen island: no
  • Number of dining seats
    • Standard: 5
    • Expandable to 10
  • Fireplace: masonry stove with viewing window (water-heated)
  • Music/sound wall: no
  • Balcony: ground floor facing south; roof terrace: no
  • Garage: no; carport for 2 vehicles
  • Utility garden: no; greenhouse: yes
  • Other wishes/special features/daily routine
    • We still have real winters in Oberwiesenthal
    • The children usually ski daily
    • They come home with wet clothes and ski boots, carrying their ski equipment
    • Therefore, a second entrance in the basement on the west side is planned, including a simple cloakroom and storage room for skis or mountain bikes in summer and work clothes after gardening
    • Important: currently, Oberwiesenthal has a lot of snow (approx. 150 cm (59 inches))
      • Paths and driveways must be cleared in winter
      • Snow must be cleverly “stored” (i.e., the snow storage must be carved so that after two months of snow clearing, the snow blower can still throw snow over the snow wall)
      • Considerations regarding roof slopes and sliding snow
    • In the basement there is a prep kitchen for the Prijut12, which I will operate starting May 2020 (a rustic wooden hut with a modest menu and great location for drinks)
      • In the prep kitchen, before the main winter season, we want to a) prepare and freeze food, or b) cook fresh meals in larger quantities and sell them right opposite at Prijut12 (about 80 m (260 ft) away)
      • The kitchen in Prijut12 is very small
House Design
  • Planner:
    • Do-it-yourself
  • What do you especially like? Why?
    • Large windows / sliding door facing south and west
      • The sunlight comes in (solar energy enters the house)
      • The view to the southwest is simply breathtaking (ski slope, night skiing, Klínovec mountain as the highest peak of the Ore Mountains)
      • The view is unobstructed and without trees
    • Open living and kitchen area
      • Interaction with children and friends while cooking, for example
    • Cozy “shell-pu-pu” corner including TV
      • My father implemented this in his holiday home
      • It is very cozy
      • Large lounging area
      • Curtains cover the TV (it disappears from daily view)
    • Second small bathroom on the first floor
      • When our two daughters enter puberty, they will have their own hygiene area
  • Cost estimate according to architect/planner: €480,000
  • Personal price limit for the house, including equipment: €500,000
  • Preferred heating technology: I’m quite uncertain and undecided...
    • Option 1:
      • Solar thermal for hot water preparation
      • Gas condensing boiler
      • Water-heated masonry stove (I have 2 ha of land, so wood supply, and definitely want a fire stove inside)
    • Option 2:
      • Water-heated masonry stove
      • Ground-source heat pump
        • Supplied by a photovoltaic system
  • If you had to give up something, what details/extensions would you omit?
    • Reduce size of guest/workroom on ground floor
    • Guest bathroom on ground floor without shower (purely guest toilet)
  • What can you not do without?
    • Living rooms
    • 2 bathrooms
    • Prep kitchen
    • Practice room
    • Office
  • Why is the design like it is now?
    • Because we want lots of light in the living area
    • Because we can enjoy a great view in a fantastic location
    • Because I personally want to use as much solar energy as possible
    • Because in summer we want to open the large sliding door to step directly into the garden where the greenhouse will be and where I will tend to my bees (I want to start beekeeping)
    • Because we have no technical know-how for the requirements
  • Standard design from planner: none yet
  • What is the most important fundamental question about the floor plan, summarized in 130 characters?
    • Does this floor plan make sense regarding building technology/piping routes, and can the forum identify flaws for daily use?
Attached are the floor plans and an example house from Bavaria, which serves as a reference for the exterior cladding look.

Attic floor plan: large rectangle with railing/grid partition and dimension lines (11 m).


Ground floor plan: living and kitchen area, pantry, bathroom, corridor, cloakroom, guest/workroom


Basement floor plan: prep kitchen, building services, workshop, office and practice rooms with doors.


First floor plan: corridor, four rooms, two bathrooms, stairs to attic, built-in closets.


Wood chalet with balcony, terrace, and white base in snowy winter landscape
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philipok
15 Feb 2019 10:27
11ant schrieb:
... is nonsense. It is clearly a client forum here, not an architects’ club.

You asked whether "one" should plan the ground floor first, or what we recommend: usually (ground floor = entrance and living areas, upper floor/attic = sleeping areas) I suggest starting with the upper floor because it is more detailed. Also, as a layperson, it’s easier to “think” about downpipes from the top down.

Then you said that regional architecture was basically born out of necessity. Yes, but that’s actually the root of all regional building cultures. And you don’t exactly distance yourself from that: I see your design as very typical of Germany/Austria/Switzerland Alpine style, and in broad terms, it would look just the same if built 300 years ago from log beams. Except for bathrooms instead of washing at the well or mountain stream, it’s practically an original Alpine hut or seasonal mountain pasture dwelling. Where you place the toilet, you tend to make the room as narrow as a bowling lane. Narrow stairs, cozy tightness, the alcove, the walk-through pantry — a herdsman back then would have built it very similarly. If you told tourists the practice used to be a sheep barn, they’d believe it.

With all due respect to the fact that every family may have their own particular style of coziness, this only partly explains the peculiarities of your planning style, and to a greater extent seems to be due to awkwardness, which is, of course, understandable for a layperson.

A professional, who also doesn’t have to be an “urbanite” and can understand you culturally well, would in my expectation come to a “more generous” architecture. Especially in mountainous regions — as I said, in Germany/Austria/Switzerland and also Italy very similar to each other — much building culture is reinterpreted, i.e. respectfully updated for the present day.

I’m just waiting to see what the planner comes up with. According to him, he will give the whole thing the appropriate Erzgebirge-style touch...
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philipok
15 Feb 2019 10:31
Mottenhausen schrieb:
Exactly! Although the term "mountain range" in "Erzgebirge" shouldn’t be understood as a mountain range in the strict sense, there are still proper winters here and quite popular ski areas. Therefore, alpine-style construction is not really out of place.

Especially since we want to build in Oberwiesenthal (the highest town in Germany) – where there are still truly cold winters at the moment and, according to a nationwide climate study, skiing will still be possible in 2050… unlike all other mid-mountain ski regions in Germany.
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philipok
15 Feb 2019 11:06
Zaba12 schrieb:
But we do that, even regularly! However, there needs to be more than just a drawing like from “The SIM 4,” which we have actually seen before.

I’m looking forward to the floor plan from the designer.

EDIT:

The three floor plans for the basement, ground floor, and upper floor add up to 250 sqm (2690 sq ft) of living space. I’m excluding the attic. You skillfully left out all the hallways.
Also, the basement has living space quality, which means it costs as much as the ground and upper floors.

For new builds in 2019, we calculate about 2,000 € (USD equivalent) per sqm (about 185 sq ft) of living space or 400 € per cubic meter (at least that was my architect’s estimate in 2018).
This works surprisingly well for many projects with mid-range standards. And that’s without additional construction costs (house connections, civil engineering, drainage, fees, architect, energy consultant, etc.), exterior work, kitchen, garage, etc.

I think it’s becoming clear now! I’m also building right now with an architect, including a basement and slope, so I know what I’m talking about when I say your 480k € - 500k € won’t be enough. Unless it’s a shell house and you do absolutely everything else yourselves.

Pffff, that’s tough. I have friends who built three years ago: 170 sqm (1830 sq ft) of living space, partially finished basement (3 children’s rooms). They were around 350k € (USD equivalent) – but they did a lot of work themselves, especially outside.

I’ll simply discuss this openly and honestly with the builder again. Thanks anyway for the feedback on this.
11ant15 Feb 2019 13:43
Currently, @Zaba12 seems quite frustrated from personal experience with how a house that looks nice, but isn’t particularly trendy or expensive, can still become quite costly when built on a sloping site.

That means, while their warnings may have some truth, you don’t have to take the severity of their statements too literally.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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philipok
4 May 2019 13:19
Hello forum, are there any participants who would like to provide feedback on the current status of the floor plans?

Floor plan of a building complex with hobby room, technical/workshop area, two work rooms, corridor, storage.


Floor plan of a house with kitchen, living room, corridor, guest room, shed, garage for two cars.


Floor plan of a house: bedroom, three children's rooms, corridor, two bathrooms, and balcony.
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kbt09
4 May 2019 16:41
@philipok ... when you come back after 3 months and want answers, it would be helpful if the floor plan at least had a north arrow and, ideally, if a site plan with a sketch of the house marked on it was added to the new post or at least linked to the post number where it appears in this thread. Now everyone interested has to look for it individually ... not very practical.
Was the upper floor a full story? If not, then the 2m (6.5 ft) height line for the roof is missing.