ᐅ Single-Family Home Planning: Requests for Help, Tips, Suggestions, and Feedback Welcome

Created on: 8 Feb 2016 13:59
M
McEgg
Since we are just slowly starting to plan our single-family home, I would like to share it here for feedback. I’m sure many people will have tips, suggestions, and even criticism that could help us. I’m trying not to write a long novel to avoid overwhelming readers and to keep it readable.

Plot details:
  • 540 m² (approximately 5800 sq ft)
  • 19 m (62 ft) wide
  • Garden facing south
  • Flat terrain
  • Currently undeveloped
  • New residential area (30 plots) in Rhein-Pfalz district
  • High groundwater expected (requires waterproof basement construction, “white” or “black” tank)

Site plan of a building plot with residential zones, paths, and building areas


Key zoning plan specifications:
  • Floor area ratio (FAR) 0.3
  • Total floor area ratio 0.6
  • 2 full stories permitted
  • Maximum wall height 4.5 m (15 ft)
  • Maximum ridge height 9.5 m (31 ft)
  • Gable or hip roof with pitch between 30° and 45°
  • Dormers may cover up to half of each building side’s width; each individual dormer may cover up to one third of the building width, maximum 4 m (13 ft)
  • Garage must be at least 5 m (16 ft) behind the street building line
  • Garage allowed on only one side of the building
Are there any other important details missing?

Our basic wishes:
  • Usable basement (waterproof construction, “white” or “black” tank)
  • Ground floor
    • Shower bathroom
    • Office
    • Open kitchen-living-dining area
    • Fireplace in living-dining area
    • Pantry
    • Entrance vestibule (?)
    • Straight staircase to the upper floor
  • Upper floor
    • Main bathroom
    • Master bedroom
    • Walk-in closet
    • 2 children’s rooms
    • Gallery (?)
  • Double garage
    • With access to pantry (not sure if allowed in Rhein-Pfalz)
  • Construction style
    • Simple, modern, clean lines
    • High ceilings
    • Unfortunately, due to zoning, no upper floor without sloped ceilings possible
  • Budget
    • I estimate we’ll end up around 350,000 € (house only, without land), probably about 10% higher

About us:
  • She: born 1982, teacher (civil servant)
  • He: born 1981, executive at a large German mid-sized company (approx. 6,000 employees worldwide)
  • Child 1: born late 2015, mostly just kicking, drooling, sleeping, and eating at the moment
  • Child 2: still swimming like a tadpole in the Rhine

We are still undecided about how to build. Therefore, I said I want to look into companies from the following categories:
  • Prefabricated houses (timber frame construction)
  • Property developer (solid masonry construction)
  • Architect

Prefabricated house (timber frame construction):
We visited the prefab house center in Mannheim several times. Based on online research and recommendations from acquaintances who have built with this company, we had an appointment with Fertighaus Weiss GmbH. The consultant took a lot of time for an initial meeting (5 hours) and planned a first draft house with us. It’s basically a first idea based on what we have expressed as our wishes. As a first draft to see what is roughly possible on the plot, I think it’s okay. But it’s not yet something that convinces us. Here are just the ground floor and upper floor:

Detailed floor plan of a single-family home with garage, living room, hallway, kitchen and bathroom (ground floor)


Floor plan of a house with bedroom, walk-in closet, bathroom, gallery, open space and project XY, 17.42 m² (187 sq ft).


Comments:
  • The width of 10 m (33 ft) results from 19 m (62 ft) plot width minus 6 m (20 ft) double garage (boundary building) and 3 m (10 ft) clearance to neighbor
  • Negative ground floor aspects:
    • No entrance vestibule
    • Passage from hallway to living area too narrow
    • Lower right area of living space (right next to staircase / above “office”) is too narrow (we have a large sofa)
My idea to improve:
  • Ground floor
    • Arrange shower bathroom and pantry vertically
    • Access to pantry from kitchen side upstairs
    • Position office horizontally instead of vertically
    • This allows moving the staircase to the left wall of the pantry, creating more space for passage and living area
  • Upper floor
    • Moving the stairs causes a problem upstairs that I have not yet solved
    • I generally like the upper floor layout, but because the stairs access is on the left side, I cannot reach the walk-in closet anymore
    • I do not want the walk-in closet to be a pass-through room (!)
I’ll try to take a photo of my hand-drawn revision and upload it.

Other appointments:
  • Appointment with property developer (Missivbau) scheduled for early March
  • Appointment with architect scheduled for early March
I don’t want to show the draft above at the other meetings because I would prefer to hear the providers’ own ideas and concepts.

What do you think of our current approach and draft?
Y
ypg
18 May 2016 14:09
Leave the living room wall as it is, only shorten the long storage room so you have more space to move around at the entrance.
Regarding the garage: unfortunately, we don’t have a corner in the garden that would protect us from the wind coming from all directions. Many neighbors whose garages extend into their gardens have a sheltered corner where they can comfortably spend time, while I stay inside. Insider tip
O
Otus11
18 May 2016 14:13
McEgg schrieb:

The idea with the garage is actually not bad. However, that will make the driveway even longer....

The length of the driveway stays the same if the garage is extended....

Garden chairs, bicycles, and similar items also need to be stored and not carried up from the basement all the time....
McEgg18 May 2016 14:40
That’s true, of course. I would also prefer a slightly longer garage. In the end, it will probably come down to the cost. For me, it can be the cheapest garage available as long as the cars, bicycles, etc., stay dry and locked up.
Beyond a certain size, prefab garages are no longer easy to transport.
With the garage, there’s also the question of whether to have the general contractor handle it right away or to contract it out later, which might cause issues with installation.
McEgg18 May 2016 14:41
What do you think about the structural engineering? The living area is quite open. Is something like this feasible, or would it be challenging?
B
BauRoman
18 May 2016 14:45
Are you allowed to build over the garage, essentially placing a terrace on top? If so, you have a lot of options to redesign the bathroom.

When it comes to the rooms themselves, don’t forget the sloping ceilings. The usable floor space is calculated differently there.

Basically, it’s similar to my designs.
Is your house oriented completely to the north?
Or is the north arrow slightly rotated?
B
BauRoman
18 May 2016 14:48
I don’t see any issues with the spans now. Accordingly, the ceiling thickness will be increased. But if the "TV wall as a load-bearing wall/exposed concrete" idea is used, I think that’s awesome! Then you won’t have any spans over 7 meters (23 feet).