ᐅ New single-family house construction, approximately 170 m², townhouse-style villa

Created on: 24 Nov 2019 13:19
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fskscorp
Hello everyone,

We are planning to make our dream of owning a home come true next year. So far, we have visited five general contractors and received fairly comparable initial offers from them. At this point, only two remain in consideration based on quality, reputation, price, and overall feeling.

The basic floor plan has been set from the very beginning, but we have continuously modified and optimized it and have not yet finalized a version, as we also want to keep an eye on construction costs. The attached floor plans include one initial design from the architect and one optimized version by me regarding the window placements and staircase location.

I would appreciate your feedback. Are there any critical issues we might be missing? What could be solved more intelligently? Perhaps something “unusual” that could be added quickly and without significant expense.

I am looking forward to your input!

Thank you very much!

Development plan/restrictions
Plot size:
1086 m2 (11,685 sq ft); approximately 31m (102 ft) wide on the street side, 29m (95 ft) deep. Located at the end of a dead-end street, with an unobstructed view of fields and forest.
Slope: The terrain currently drops about 2.80m (9 ft 2 in) from south to north but will be leveled during self-performed earthworks to about 1m (3 ft 3 in) above street level.
Site coverage ratio: 0.4
Floor area ratio: 0.8
Building setback: 3 meters (10 ft) from the street
Adjacent buildings: none
Parking spaces required: 2 per housing unit
Number of floors allowed: Max. 2
Roof pitch: Between 25° and 45°
Architectural style: Classic-modern?
Orientation: Open
Maximum heights/limitations:
Additional requirements:
Roof color (although no one has really stuck to this)

Owners’ requirements
Style, roof type, building type:
Classic modern, urban villa with tent or hipped roof accordingly
Basement, floors: 2 full stories plus a large double garage with flat roof
Number of residents, age: 2 adults in their early 30s
Room requirements on the ground floor: Cloakroom, guest toilet, utility room, kitchen, living and dining room
Room requirements on the upper floor: 2 children’s rooms, master bedroom, walk-in closets, bathroom, office
Office: Family use + minimal home office
Guests per year: Rarely
Open or closed architecture: Open, but living-dining area separated from the hallway
Conservative or modern construction: We see ourselves as modern but not over the top.
Open kitchen, island: Open kitchen with island and ideally a side-by-side refrigerator
Number of dining seats: Usually 4-6
Fireplace: None
Media/wall unit: Media wall for TV
Balcony, roof terrace: The adjacent double garage should be accessible from the parents’ bedroom (planned for the future, probably never realized but option should exist).
Garage, carport: Double garage with space to serve as a cellar substitute room
Utility garden, greenhouse: Possibly later
Further wishes/special features/daily routine, also reasons for or against certain choices:
- Utility room next to kitchen on the ground floor, accessible from the garage
- Spacious open living and dining area
- Smart Home is a topic everywhere, but we have decided that KNX will only be feasible as self-installation
- No external thermal insulation composite system (ETICS)

House design
Who created the plan:

- Architect, self-drawn

What do you like most?
Open and spacious, all our wishes were considered. We wanted to keep the building’s shape as simple as possible and avoid dormers, bay windows, and indentations. Lots of large windows facing the back, as the view is really great and unobstructed.

What don’t you like? Why?
Price estimate according to general contractor/general planner: about €395,000 (approx. $440,000) including additional building costs.
Preferred heating system: air-to-water heat pump with photovoltaic. However, the photovoltaic system is not included in the price.
Only the point that you don’t really get anything special for this fairly high amount. I would like to have one or two ‘gimmicks.’

If you had to give up anything, which details/features?
From our perspective, it is already minimalistic. We reduced from 190 down to these 175 m² (1882 sq ft).

Why does the design look the way it does now? For example:
We put a lot of thought into the floor plans, looked at many houses online and from friends/family. We wrote down everything we liked as well as what we didn’t want. Budget-wise, it quickly became clear that in this price range, you have to forego visual and technical highlights. We want to optimize the window work; reportedly, we are about €10,000 (approx. $11,200) above average for a house of this type.

What is the most important/basic question about the floor plan in 130 characters?
Are there optimizations in the floor plan we have overlooked? All existing furniture except the kitchen is drawn to scale. Enough windows/light overall?

Floor plan of a house: left side living and dining room, hallway, cloakroom, utility room, toilet/shower; right side garage.


Floor plan of a single-family house with living room, hallway, utility room, cloakroom, toilet/shower, and garage on the right.


Floor plan: office, master bedroom, two children’s rooms, hallway, bathroom, staircase, addition on the right.


Floor plan of a house: office, master bedroom, child 1, child 2, bathroom, hallway; 85.17 m² (917 sq ft).


Cadastral map: plots with red area markings and blue boundary lines; street name Laubersthal.


Green field in the foreground, tree group on the left, wind turbines in the background, light-colored house on the right.


Site plan of a building plot with building footprint, driveway and lot numbers 395/6, 395/7.
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guckuck2
28 Nov 2019 11:57
fskscorp schrieb:

It is not fastened at all. According to ZTV E-Steuerberater, it is interlocked and overbuilt by 1 meter (3.3 feet) during construction, compacted, then restored to the final slope and finally vegetated.

So it is fastened after all
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fskscorp
28 Nov 2019 12:01
guckuck2 schrieb:

So it is compacted after all
For me, compacted and stabilized means using riprap or something similar, or possibly soil stabilization using a binder. But I don’t consider it stabilized just like that.
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guckuck2
28 Nov 2019 12:04
You will plant the area extensively (lawn, etc.) to prevent erosion. As soon as a sudden runoff heads toward the neighbor, that will also require discussion. For safety, you could install an edging or a swale at the boundary, possibly with drainage, to prevent any water from overflowing.

I have neighbors with L-shaped retaining walls who are now arguing because water is pressing through the previously celebrated, expensive, and initially attractive L-shaped walls...
kaho67428 Nov 2019 12:33
fskscorp schrieb:

I positioned the house to have an unobstructed view of the field at the back. To the south, there is a greenbelt with designated planting/forest as specified in the development plan. That’s why the living area including the terrace is oriented toward the west.
Yes, how terrible, I wouldn’t want to see forest and greenbelts either. Better tractors then!
Just kidding. If west is the preferred direction, I would still try to minimize walking distances and maximize the garden area:


Site plan: garage with two parking spaces, house with terrace, orientation north at top.
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fskscorp
28 Nov 2019 14:10
guckuck2 schrieb:

You will cover the entire area with vegetation (lawn, etc.) to prevent erosion. As soon as water runoff flows towards the neighbor, there will be a need for discussion. For safety, you could also install an edging or a swale along the boundary, possibly with drainage, to prevent any water from spilling over.

I have neighbors with L-shaped retaining walls who are now arguing because water pressure has built up behind those previously praised, expensive, and visually appealing L-walls in new condition...

This neighbor has already excavated and built an L-shaped retaining wall. I have planned a berm about 1 meter (3 feet) wide along it. On this, I roughly shape a swale that directs water away from the boundary towards the western field path. If water does overflow, I have done everything possible to prevent it. I’m simply not a fan of these concrete elements, even though landscapers make a good living installing them. Since I have the space, I want to design it as naturally as possible.
kaho674 schrieb:

Yes, how terrible, I wouldn’t want to see forest and green strips either. Better tractors then!
Just kidding. If it has to be the west side, I would still try to minimize the paths and maximize the garden area:

I actually like tractors Just kidding, but the forest does cast shade, which is definitely pleasant. However, we simply prefer the view towards the fields and then the forest beyond. It makes the whole space feel more open and bright. Thanks for your sketch. I want to do something like that too, but I plan to gently blend the height difference of about 1 meter (3 feet) to the street rather than build a large ramp. I just want to be slightly higher than street level because I find it more visually appealing. My hydraulics professor always said, “Build higher than your neighbor.”

Placing the front door where you suggested was also my first idea. However, this was not possible because we want the kitchen and dining area to face the terrace and want to connect the garage and utility room.
kaho67428 Nov 2019 16:09
fskscorp schrieb:


Placing the front door where you positioned it was also my first thought. However, this was not possible because we want the kitchen and dining room facing the terrace and aim to connect the garage and utility room.

So you mean the useless utility room door to the garage is so important that you’re willing to pave half the lot? You’re also okay with that narrow space you call the dining room/kitchen and the car fumes that regularly drift inside? Hmm, okay.