ᐅ House Design 135m² in Austria

Created on: 20 Mar 2019 11:15
G
Gugelhupf
Hello everyone!

Although we are from Austria and building here, we have been following various posts in this forum for some time. There are many creative minds here, and I really appreciate your advice in the other discussions.

We ourselves have been in the house planning phase for quite a while. We recently purchased a plot of land south of Vienna and plan to start construction in 2020. We want to build with solid construction methods, but we are still deciding between brick (which is very common here) and aerated concrete blocks (we really like the kit house concept from Ytong based on what we’ve heard so far, although it is quite rare in our area).

Efficiency in the use of living space is very important to us (no unnecessary features, no long hallways, no balconies or bay windows), as well as in the building services (heat pump, controlled mechanical ventilation system, etc.).

I assume there isn’t much experience here with Austrian building regulations, so I will try to answer any questions that come up as quickly and competently as possible.

Here is the completed questionnaire:

Zoning Plan / Restrictions
Plot size: 604 m² (6500 ft² approx.)
Slope: No, completely flat
Site coverage ratio: (not applicable here) - 32% buildable area
Floor area ratio: (not applicable here)
Building setback lines and boundaries: front setback 3 m (10 ft), side setback 3 m (10 ft) or half the eave height of the adjoining façade – whichever is greater, rear setback 3 m (10 ft)
Edge building restrictions: within the setback zone up to a maximum height of 3 m (10 ft)
Number of parking spaces: 2
Number of floors: not specified in the zoning plan
Roof shape: no restriction according to zoning plan
Architectural style: no restriction
Orientation: no restriction
Maximum height/limits: max. building height 6.8 m (22 ft) (eave height)
Other requirements: none

Client Requirements
Style, roof shape, building type: classic rectangular shape, gable roof or staggered shed roof, simple building form without bay windows or dormers, no balconies!
Basement, floors: basement (gym, workshop, laundry, mainly storage), ground floor (living areas + guest room), upper floor (bedrooms)
Number of occupants, ages: male 28, female 34, child 0.5 years, child 11 years (every second weekend + school holidays)
Space requirements ground floor, upper floor: ground floor (shower bathroom, guest room/home office/play/multi-purpose room, living room, kitchen, pantry), upper floor (bedroom including walk-in closet, 2 children’s rooms, bathroom), basement (gym, laundry, storage, workshop)
Office: family use or home office?: 80% family use as playroom, 10% home office, 10% guest room
Overnight guests per year: approximately 5, mainly relatives visiting for various celebrations from afar
Open or closed layout: open plan
Conservative or modern construction: rather conservative but open to “unconventional ideas”
Open kitchen, kitchen island: open kitchen with breakfast bar
Number of dining seats: permanently 6, at family celebrations minimum 12 temporarily, >16 long term
Fireplace: no
Music/speaker wall: no – but large TV frequently used
Balcony, roof terrace: definitely no!
Garage, carport: carport within the setback zone (on the north side?)
Vegetable garden, greenhouse: definitely yes! Gardening is a big wish and the main reason for the whole project
Other wishes/special features/daily routines, explanations if desired: The house should be as efficient as possible (during construction and especially in operation), therefore no awkward bay windows etc. (ratio of surface to volume)
Additional requests: controlled mechanical ventilation system, laundry chute, non-load-bearing partition wall between the children’s rooms so it can be removed in a few years if the older child no longer lives at home. The most important thing is a large garden, so that’s why the basement is desired to minimize the building footprint. The kitchen must be large enough for at least two people to cook at the same time – this is currently a problem in our apartment.

House Design
Designed by: DIY with a lot of input from planners
What do you like? Why?: almost all wishes implemented
What do you dislike? Why?: pantry is quite small, upper floor still not quite perfect, niche in the corridor as storage replacement for vacuum cleaner etc.
Price estimate according to architect/planner: €430,000 turnkey, €350,000 “turnkey with owner involvement”
Personal price limit for house, including fixtures and fittings: €350,000 in shell and core condition is the goal, with a comfortable buffer, but that would be our ideal
Preferred heating technology: heat pump with ground source collector (trench collector)
Note: We are not under time pressure for planning or construction. We are very willing and able to do much of the work on the house ourselves. Providing appropriate “self-performance proof” for the bank is not a problem either. This helps keep construction costs low.

If you have to give up something, which details/finishes
- could you give up: almost everything except the pantry and open kitchen
- could you not give up: pantry, open kitchen, and preferably not the controlled ventilation

Why is the design the way it is now?
A mix of many examples from model home parks, magazines, and many discussions with planners/architects etc.

What do you think makes it particularly good or bad?
All the rooms we imagined are present, relatively short circulation routes, hardly any wasted space

What is the most important/basic question about the floor plan in 130 characters?
What do you think of the design? Where do you see potential for improvement? Placement of laundry chute?

I look forward to your opinions and comments!

Best regards,
your Gugelhupf

Floor plan: Living room with blue corner sofa, brown dining table, kitchen, bathroom, hallway and stairs.


Floor plan of a house with bedroom, walk-in closet, hallway, two children’s rooms and bathroom.


Site plan with yellow outline of plot, next to black building area; playground on the left.
G
Gugelhupf
20 Mar 2019 14:57
WilhelmRo schrieb:
The ground floor is still missing.

I have added some measurements on the ground floor. The kitchen is currently just a placeholder – we will consider it in more detail later...

Regarding the ground floor bathroom:
Would a solution like the one shown in the attached image be a practical option? This way, the shower is retained, and the layout would require significantly less space. The remaining question is how best to allocate the freed-up space to the kitchen or pantry?

Floor plan of a house: guest room, staircase, living room with blue sofa, dining area, kitchen, bathroom


Floor plan of a small room approx. 4.6 m² (50 sq ft) with door on the left, window on the right, and treatment chair.
H
haydee
20 Mar 2019 15:03
Regarding financing – even if you don’t want to talk about it. Here are a few links that everyone should read and that you will need to adapt for Austria.

https://www.hausbau-forum.de/threads/liste-der-anfallenden-Baunebenkosten-bauseits-teurer.9737/
https://www.hausbau-forum.de/threads/warum-ein-Hausbau-fast-immer-teurer-kommt-als-kalkuliert.16237/

About your floor plan
Please draw in the furniture you plan to buy or already have, to scale. Also include the kitchen you haven’t ordered yet but want. For example, if you definitely want a peninsula, it needs to be included now; the color and brand don’t matter.

Also take traffic areas into account, so that Aunt Gerda can still pass Grandpa Hubert when he is sitting at the table.

Ground floor
The pantry is so small it could fit inside any good cabinet. There are pantry cabinets that are real space savers.
Omit the shower and add that space to the pantry.

If the sofa is going to be that big, where will the cabinets, table, and children’s toys go?

Upper floor
Bathroom is very small, and the dressing room only fits one row of cabinets.
I would remove the dressing room and add those few centimeters to the bathroom.

Make sure to mark the two-meter (6 feet 7 inches) line, even with high knee walls. I might be able to shower, but if you are 1.99m (6 ft 6 in) tall, suddenly you won’t anymore.
G
Grantlhaua
20 Mar 2019 15:03
Gugelhupf schrieb:
Regarding the ground floor bathroom:
Would a solution like the one shown in the attached image be a reasonable option? This would keep the shower while requiring significantly less space. The only question is how to best allocate the gained space between the kitchen and the pantry?

Move the front door 30cm (12 inches) upwards, place your layout in the lower right corner of the plan, and also move the pantry all the way down to the exterior wall. The freed-up space can then be used for a wardrobe. (By the way, why are there two recesses for a wardrobe?) Alternatively, add the gained space to the pantry.

Alternatively: Keep the original layout but shift the pantry upwards so that it aligns with the wall in the hallway, creating a correspondingly larger access to the shower.

Personally, I would prefer option 1, since then the pantry could have a window.
kaho67420 Mar 2019 16:35
Gugelhupf schrieb:

I hope I’ve cleared up the uncertainties?

Yeah.
Those are some serious walls. For a rather compact house, they’re quite substantial. Is it still 135m² (1455 sq ft) then? What does your software say? Does it calculate that automatically?
Wrapping the bathroom like that doesn’t make sense. A thick exterior wall should be enough.

The house is small. I find a half-landing staircase questionable here. For this size, people usually go for a standard layout that maximizes space. To me, that means the entrance would be on the eaves side next to the stairs. Is that an option?

What knee wall / dwarf wall height did you choose?
H
haydee
20 Mar 2019 16:43
Wrapping the bathroom is pointless. In a mechanical ventilation system with heat recovery, this is an exhaust air zone.
G
Gugelhupf
20 Mar 2019 17:26
kaho674 schrieb:
Hey.
Those are some serious walls. For a rather compact home, they’re quite substantial. Is it still going to be 135m² (1455 sq ft)? Does your software calculate that right away?

With the current floor plan, it should be about 140m² (1507 sq ft) of net living space. That’s a bit larger than the 135, but still fine...
kaho674 schrieb:
The house is small. I find a landing staircase a bit questionable here. For this size, people usually go for a standard layout that maximizes usable space. That means, for me, the entrance at the eaves next to the stairs. Is that an option?

Definitely an option, I just found it even more difficult to fit everything in that way... but I’m always open to ideas!
The landing staircase is not mandatory, it could also be another staircase type if the space is better used.
kaho674 schrieb:
What knee wall height have you chosen?

We are currently planning with around 2m (6 ft 7 in).
haydee schrieb:
Enclosing the bathroom doesn’t help. With the mechanical ventilation system, it’s an exhaust room.

Out of interest, could I ask why that wouldn’t help? A planner actually recommended this to us to get 1-2°C (2-4°F) higher air temperature...
But as usual, it’s not set in stone for us and can be changed!
Grantlhaua schrieb:
Move the front door 30cm (12 inches) up, place your layout in the bottom-right plan area, and push the utility room (SK) all the way down to the exterior wall. The gained space could be used for a wardrobe. (Why do you actually have two recesses for a wardrobe?) Alternatively, add the gained space to the pantry.

Alternatively: Keep the layout as is, but move the pantry up so it aligns with the hallway wall, creating a larger access to the shower.

Personally, I’d prefer option 1 because the utility room could then have a window.

I tried to quickly implement that and attached the picture.
Also, I replaced some furniture, where the software dimensions were misleading, with simple lines here.

Floor plan of a house with kitchen, dining area, living room, hallway, bathroom, guest room, stairs.