ᐅ 2 Bungalows on a 3,000 sqm Plot – Multigenerational Housing Project

Created on: 10 May 2019 11:04
O
Obermuh
Hello everyone,

First, a brief introduction. I’m Andy, 35 years old, married, and embarking on building a house for the first time. I’m an employee, my wife is self-employed, and together with my parents-in-law, we plan to develop a large plot of land. The plot is already purchased and fully paid for with equity. For the construction of the houses, we have a budget of around €1.2 million, of which about €600k come from the sale of existing properties (my parents-in-law’s single-family house and our condominium) and a financing commitment for up to €600k.

We are currently in the planning phase for a multi-generation project, but my main focus is our house (“House 1”). The parents-in-law have already completed the plans for their bungalow (basically a modified ground-floor layout of their current house). The design is mine, adapted by the general contractor, and is currently with the architect for further revisions. I would really appreciate any tips, feedback, and ideas you might have.

I’ll follow the provided questionnaire:

Development plan / restrictions
Plot size: 2935 sqm (31582 sq ft)
Slope: Yes, see attachment
Floor space index (FSI): 0.2
Floor area ratio (FAR): 0.3
Building envelope: see attachment
Edge development: No
Number of parking spaces:
Number of storeys: 1 full storey
Roof style: Flexible
Architectural style: Modern
Orientation: Southwest
Maximum heights: Roof ridge height 3.50 m (11.5 ft) on slope side
Additional requirements: see attachment

Two-column building plan with legend, symbols and surface patterns.


Client requirements
Building type: Bungalow
Basement, storeys: No basement, 1 storey
Number of occupants, ages: 2, aged 35 and 31. Planning for 2 children
Office: Yes, space for two desks and some filing
Guest bedrooms per year: 10-15
Open or closed architecture: Open
Conservative or modern construction: Modern
Open kitchen, island: Both yes
Number of dining seats: 6-8
Fireplace: Nice to have but not essential
Music/sound wall: No
Balcony, roof terrace: No
Garage, carport: 2 garage spaces
Utility garden, greenhouse: Herb garden
Additional wishes: Dog shower

House design
Designed by: My design, implemented by the general contractor

What do you especially like? The atrium as a visual centerpiece and the related openness of the house

What do you dislike? Some wasted space, inconvenient furnishing of the walk-in closet due to 4 doors

Estimated cost according to architect/planner: €675k (approx. $720k) including paving, exposed concrete floor/wood flooring, painting, partial air conditioning, and additional upgrades. A horizontal roller shutter to close the entire atrium is also included (about €15k).

Personal price limit for the house including features: €750k (approx. $800k)

Preferred heating technology: Heat pump, photovoltaic system planned

If you had to give up something, on which details/extras
- could you compromise on: space in the parents’ area, 2 lift-and-slide doors in the atrium, lift-and-slide door in the living room
- could you not do without:

Why was the design made as it is?
After the attempt to build one large house including a granny flat on the front building plot was rejected, we are opting for two houses. To avoid further discussions about eaves height, we are building bungalows.

Contour lines:
Unfortunately, I cannot attach the PDF, but I hope the numbers are readable.

Topographic cadastral map: plot 11, land areas, terrain contours, blue polygon path.


Open space plan:

Floor plan: two houses (House 1, House 2) with paths, terraces and stairs.


Floor plan:

Floor plan of a single-family house with rooms, corridors, terrace and outdoor area.
H
haydee
11 May 2019 11:42
You are right @jpg, in a typical house there is a staircase in between.
Y
ypg
11 May 2019 12:03
Obermuh schrieb:

In the end, we didn’t like that every room was always facing the terrace.

Simple solution: instead of just window fronts, consider planning a wall sometimes.
O
Obermuh
11 May 2019 12:14
haydee schrieb:

The idea of separate living wings works well for older children or just two people.

How about a covered atrium with a dining area in the center, from which the wings for parents, children, and living spaces would be accessed—possibly moving away from the square layout?

That’s another option. Reduce the size of the atrium a bit, remove the corridor areas, and then have a glass roof over the middle. Wouldn’t a living room in the center (perhaps lowered by two steps?) make more sense than the dining area?
ypg schrieb:

Simple solution: instead of just glass frontages, also plan for a wall sometimes.

The nice thing about the Bien-Zenker U design is actually the large amount of glass facing the garden. Especially since the side views won’t be so pleasant (a slope on one side and neighbors on the other). If you open the U shape toward the back, the terrace ends up facing north. The garage also still needs to be placed somewhere in front.
H
haydee
11 May 2019 12:37
No, the living room is for retreat and relaxation, while the dining table is for life and communication: eating, crafting, homework, games
Y
ypg
11 May 2019 13:38
Obermuh schrieb:

The nice thing about the Bien-Zenker U design is actually working with lots of glass facing the garden. Especially since the side views won’t be very attractive (slope on one side and neighbors on the other).

The Bien-Zenker U should only serve as an example for you—no more, no less. It’s an alternative to your fixed idea of an atrium.
Good house design means using windows and walls purposefully, rather than just adopting everything that might not fit well on your property. Then there is the opening to the garden—the transition between house, terrace, and garden.
Who wants to sit in the shade of an atrium when the garden weather outside is perfect for enjoying time with family, caring for fruit trees, tending flowerbeds, and enjoying shrubs and blossoms? An atrium can help bring light into rooms and create attractive sightlines in a large house, but in my opinion, it is not practical for staying in for our climate zone. You can achieve good sightlines and natural light just as well with a modest U-shape or even an L-shape.
Fundamentally, you should consider how and where the entrance area fits with the terrace location and the main living areas. For example, I don’t see the Bien-Zenker U fitting well on this property...
Regarding the atrium again: in my opinion, such a space will sooner or later go unused, become an additional maintenance burden, and eventually be resented and neglected. The same applies to roof terraces that only serve as an extension of the garden—people tend to spend more time actually in the garden.
H
haydee
11 May 2019 14:05
A slope is not unattractive
Clearly, there is no distant view, but it can still offer a view of greenery and flowers