ᐅ Single-family house with a recessed upper floor, southwest-facing, located in Bonn

Created on: 5 Oct 2020 20:40
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Benrath
Hello everyone,

we have purchased one of three plots that were divided from a larger property and still need to be developed. Access is via a private road, and all three owners share the traffic area equally. The plot is very well connected for us, located centrally in Bonn, and is perhaps a bit larger than we actually needed. However, it’s not like there are always free plots available in a similar location.

Because there was a lengthy legal dispute between the seller and the neighbors beforehand, we can only build a partial recessed upper floor to a limited extent. Probably for this reason, the plot was mainly interesting for private buyers. An accessory apartment is not possible, and we don’t want one anyway.

Up until now, the planning was done from scratch without considering costs or practical aspects, at least from our side. The architect apparently enjoys drawing, which is understandable at this stage and has a certain artistic approach. We are generally open to all suggestions and ideas on what could be done differently, especially where costs might be saved easily.

Our next step will be to conclude an architect contract for service phases 1 to 5 plus general contractor / main contractor.

Development plan/restrictions
Plot size: >800sqm (8600 sq ft), no slope, building envelope etc. See plan.
Parking spaces: 1 on traffic area and 1 garage
Number of storeys: Only 1 full storey plus a recessed upper floor
Roof style: Flat roof; architectural style: rather Bauhaus
Orientation: Front of the house faces southwest
Maximum height/limits: 7–8m (23–26 ft)

Owners’ requirements
We basically have no specific style requirements. A flat roof results partly from the recessed upper floor and height restrictions, which probably don’t allow a pitched roof.
We want a basement with excavation and two daylight rooms (this was more the architect’s idea). Currently, there are three of us, possibly four in the future. Early 30s and a baby.
We had planned for just over 100sqm (1076 sq ft) on the ground floor and about 75% of that upstairs. Currently, it’s roughly 230sqm (2475 sq ft) ground floor and upper floor combined plus terraces, etc., and the basement.
Office: occasional use, not very important.
Number of overnight guests per year: unknown, but a guest room is planned
Open kitchen, kitchen island: We definitely want a separate kitchen area and like the suggestion of an extended island
Number of dining seats: 4 in the kitchen, more like 8 in the dining room
Fireplace: Not very important, probably no.
Music/surround sound system: 5.1 system around the TV
Balcony, roof terrace: Terrace is a must, balcony above the kitchen results from the recessed floor
Garage, carport: The garage width of 4.5m (15 ft) is unusual and probably makes it more expensive.

House design by the architect
What do we particularly like? Why? Good use of the sunny side, and otherwise all our wishes have been taken into account.
Upper floor: 3 bedrooms, 2 bathrooms. Master bedroom with en-suite bathroom and walk-in closet.
What don’t we like? Why? I could imagine a nicer staircase, perhaps a longer, more open design. Overall, the hallway feels a bit large.
The upper-floor terrace seems somewhat oversized. We are wondering if the overhang casts too much shade on the ground floor.
Price estimate according to architect/planner: with general contractor and all additional costs >900,000€ (over 900,000 euros)
Personal budget limit for the house, including fittings: rather below that.
Preferred heating technology: no opinion so far

Why does the design look like it does?
For example:
There was an initial meeting with the architect during which our wishes were noted.
Ground floor: separated kitchen, combined living/dining area. Another separate room as office/guest room (and possibly bedroom if needed).
Passage from the garage to the house, possibly as a utility room.
Upper floor: 3 rooms plus 2 bathrooms, including one en-suite.
First draft at the second meeting, and at the third meeting this final design was presented.

Detaillierter Grundriss eines Gebäudes mit markierten Innenräumen auf Bauplan


Skizze eines Hausgrundrisses mit Küche, Essbereich, Wohnzimmer und grünem Garten mit Bäumen.


Handgezeichneter Grundriss: zentrale rote Fläche, linke Nebenräume, rechter Raum, gelbe Lichtstrahlen.


Skizzenhafter Grundriss eines Hauses mit mehreren Innenräumen und umliegendem Garten.
A
Alessandro
1 Dec 2020 16:23
Floor plan of a house: rooms, terrace, and section marks in red.
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Alessandro
1 Dec 2020 16:37
ypg schrieb:

It’s not just about taste, but also about functionality and evaluating things neutrally.

Yes, that’s exactly the point!
You can read through the thread again if you want... 😉
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Benrath
1 Dec 2020 16:38
I understood it the same way or similarly as @Würfel*. The hallway is now very spacious, but the advantage is that the bedroom and bathroom are directly accessible. However, the dressing room is only accessible indirectly. In the version proposed by Würfel, the dressing room would have more space and room for cabinets, but you would have to enter the bedroom and bathroom through the dressing room. Both options have their pros and cons...

I think I preferred the idea of placing the kids’ bathroom between the rooms because that is the north-facing wall, and the lower room would get more light through a corner window or two windows.

Where you are planning to put the shower now, I would consider leaving an opening so that the hallway could extend through the entire floor height and create a connection between the upper and ground floors. This again supports the access-through-the-dressing-room option.

@Alessandro, did you also start a thread for your build? The search function isn’t very helpful, and I can’t send private messages yet.
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Baufie
1 Dec 2020 16:49
Alessandro schrieb:

@Baufie :Show us your floor plan so we have a benchmark! 😀
The hallways are from a single-family house.
All the best to your nuts!

The benchmark is your townhouse anyway;)

Early-stage plans of my little house are available online. I’m certainly not going to post mine here in someone else’s thread.

Great basement hallways you showed. In a house this size, I definitely wouldn’t want that. And not the complicated layout like in this architect’s design either. If I’m building a “bunker” of this size and price range, with a clear exterior structure, I wouldn’t want such a convoluted maze inside. At least the hallway on the upper floor gets two skylights to bring in some light.
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Benrath
1 Dec 2020 16:51
I have no problem with you posting your plans here 🙂
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ypg
1 Dec 2020 17:45
I’ve sketched out my thoughts on the staircase, but within your design.
Maybe this could be an approach:
The real issue was the size of the rooms, which made it difficult to access some of them properly. But I think whether a guest room has the desired 21 or 19 square meters (226 or 205 square feet) without guests doesn’t matter to the piano – it fits just fine.
Floor plan of a house: Living area 61 sqm, Guest room 19 sqm (piano), Hallway, Cloakroom, Kitchen 25 sqm, WC, Utility room

Floor plan of a house: Master bedroom 40 sqm, Utility room 12 sqm, Room 10 sqm, Gallery, Child’s room 16 sqm, Child’s room 17 sqm

Modern white cube house complex; person standing on the roof terrace in front of glass facades

3D architectural model: open living area with staircase, glass walls, piano and person