ᐅ Suggestions for the floor plan of a single-family house, approximately 175 sqm, with a pitched roof

Created on: 4 Nov 2022 22:51
E
epinephrin
I’m venturing into this part of the forum to share our floor plan for discussion. I’m hoping for constructive feedback and ideas in case improvements would be advisable.

We want a bright house of about 160-170 sqm (1700-1830 sq ft). We would prefer an open staircase design, but it should not interfere with the floor plan. The flat roof dormer is more than just a nice-to-have... 🙂

Overall, we like the current floor plan very much, but since we are building novices, we would like to go over it with you experts to identify any possible issues. As we haven’t signed the contract with the general contractor yet, there are unfortunately no detailed dimensions available. The furnishing in the kitchen, bathroom, and living area is not yet fixed, so please don’t focus too much on those!

Orientation: the street and entrance are on the north side, terrace faces southwest.

Development plan / restrictions
Plot size: 854 sqm (9190 sq ft)
Slope: no
Site coverage ratio: 0.4
Floor area ratio: 0.8
Building envelope, building line and boundary: 3 m (10 ft) from plot boundary
Edge development: garage approx. 1 m (3 ft) northeast
Number of parking spaces: 2
Number of storeys: max. 2 full floors
Roof type: gable roof 30-45°, hipped roof 25-35°, shed roof, flat roof possible
Style: modern
Orientation: southwest
Maximum height/building limits: ridge height 8.50 m (28 ft)
Additional requirements: driveway max. 4 m (13 ft) wide

Client requirements
Style, roof type, building type: modern gable roof house (without eaves)
Basement, floors: no basement; 1.5 or 2 storeys; cold roof
Number of people, ages: 4 people (42, 41, 8, 5)
Room requirements on ground floor: kitchen, living, office, shower/WC, utility room; upper floor: sleeping, dressing room, 2 children’s rooms, bathroom, reading corner
Office: used for family or home office? 1 home office
Number of overnight guests per year: max 2
Open or closed architecture: open and bright
Conservative or modern construction: modern
Open kitchen, kitchen island: open (but no direct view to living area), kitchen island if possible
Number of dining seats: 6 (preferably extendable to at least 8)
Fireplace: bioethanol / water vapor fireplace
Music/stereo wall: no
Balcony, roof terrace: no, but projecting bay window on upper floor
Garage, carport: garage or carport (6x9 m (20x30 ft) – position and storage room next to or behind garage not fixed yet – orientation on plot either lengthwise or widthwise)
Utility garden, greenhouse: no
Further wishes / special features / daily routine, also reasons for decisions:
  • Seating window on upper floor (bay window) – to hopefully bring plenty of light into the hallway and provide a nice view
  • Open staircase (straight or with landing, no preference)
  • Kitchen without direct line of sight from living area
  • Office preferably with garden access

House design
Origin of the design: original floor plan from Gussek House “Zypressenallee,” adapted to our needs and wishes by a general contractor’s planner

What do you like most and why? We like the layout and orientation of the ground floor, with sightlines from the entrance area

What do you like least and why? Uncertainty whether the kitchen is too tight; arrangement options for living room (sofa, piano!, bioethanol fireplace?) – possibly remove the middle square window in the living area on the ground floor in favor of more space for furniture?

Price estimate from architect/planner: 600,000 EUR (including garage, additional construction costs)
Personal price limit for house including equipment: 600,000 EUR
Preferred heating system: air-to-water heat pump

If you have to give up on certain details or extras:
- Can give up: staircase, 10 sqm (110 sq ft) of living space
- Cannot give up: bay window on upper floor (I just really like this nesting box)

Why is the design as it is now? For example:
The desire for a bay window with reading window and open architecture was implemented, combining examples from various magazines...

What is the most important/basic question about the floor plan in 130 characters?
see above

Floor plan of a house with garage, office, hallway, kitchen and open living area.


Floor plan of the upper floor with hallway, bathroom, dressing room, master bedroom, 2 children’s rooms, office/reading area.


Cross-section through a multi-storey house with staircase, roof structure, and foundation.


Hand sketch of a floor plan: house with kitchen, living room, terrace and double garage.


Site plan of a housing development with yellow streets, red residential areas, and legend on the right.
K a t j a16 Feb 2023 22:34
epinephrin schrieb:

So should it rather be 3.66m (12 feet)?

It’s best to specify that as a must-have built-in kitchen measurement in the contract! Then your general contractor (GC) has to figure out what the rough construction dimension should be. Also, the plasterers and bricklayers will (hopefully) pay attention if a minimum dimension is written down clearly and boldly somewhere.
epinephrin schrieb:

Alternatively, maybe a room divider or something else—or nothing at all—would work there.

Well, then I’m obviously in favor of an aquarium.
epinephrin schrieb:

For the guest bathroom without a window, we’re probably planning a clerestory window above the wardrobe area to capture some daylight.

I thought about that too, but I think that wardrobe corner will quickly fill up with coats, shoes, bags, coat hooks, and stuff all the way up to the ceiling.
11ant16 Feb 2023 22:52
epinephrin schrieb:

I have read about botched measurements so many times in other posts but still have no idea how to avoid them...

Nothing could be simpler: just avoid planning with arbitrary measurements and instead use whole octameter steps, as was traditionally done. If you can’t divide one meter into eight equal steps, you probably shouldn’t become an architect or a mason. Every imprecise cut leads to further “cover-up actions,” as a detective would say.
epinephrin schrieb:

Where would you hinge the door in the WC? Inwards or what exactly is wrong?
epinephrin schrieb:

For the guest WC without a window, we're probably planning a transom window above the wardrobe area, to let in some natural light.

Hinge it outwards, to the opposite side. The transom window is a good idea.
epinephrin schrieb:

Do you generally find lift-and-slide doors unnecessary, or what exactly is the reason?

In this case, it’s both redundant and unnecessarily expensive, and the variety of sizes here is somewhat questionable.
epinephrin schrieb:

That’s probably true. Swapping the northwest child’s room with the bedroom makes the dressing room more complicated again. I think the children would adapt, though. After all, the rooms are identical (in size).
epinephrin schrieb:

Honestly, I don’t quite understand what you mean by snap lines? [...] The eaves side should get tilt-and-turn windows so they can be properly cleaned.

That’s probably the reason for the unusual lines. For the southwest child’s room, it will be enough to reduce the southern window area.

Never plan room dimensions to exact measurements—round up in whole steps as stated above. In this case, that would be 3.70 / 3.76 meters (with a 24 cm / 17.5 cm (9.5 inches / 7 inches) wall).
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Y
ypg
16 Feb 2023 23:36
I believe the issue with doing laundry through the kitchen disappears once you recognize the lack of space in the utility room! We have just a bit more space, are two people, and handle laundry upstairs. The room is still tight, even with constant tidying and decluttering.

Additionally, I find the kitchen cabinetry far too limited. The island is 180cm (70 inches)? That leaves 180cm (70 inches) for small appliances and the coffee machine… then a surface for a fruit bowl, tomatoes, and everyday items that, due to missing cabinets, also have to stand outside… so there is practically no usable work surface left. The recess at the top of the kitchen wall measures 360cm (141 inches) in total but would require 65cm (26 inches) for an extra cabinet, which would take space from the dining area.

Disproportionately large areas are the two hallways on the ground floor and upper floor, as well as the space at the bottom left of the plan between the sofa and dining area.

I would say: appearances can be deceiving; the design has several drawbacks. For me, the mentioned lack of space is unsatisfactory and would not be sufficient for a larger house.
K
kbt09
16 Feb 2023 23:41
epinephrin schrieb:

So should it be closer to 3.66m (12 feet) then?
No, more like 370 cm (12 feet 2 inches) ... because with a 360 cm (11 feet 10 inches) closet, you need 2 to 3 cm (about 1 inch) on each side for side panels to ensure clearance from the wall. So around 365 cm (12 feet) plus wall plaster.
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epinephrin
16 Feb 2023 23:59
ypg schrieb:

Besides, I find the kitchen cabinets way too few. Is the island 180cm (71 inches)?

I actually felt the kitchen didn’t seem that small. Apparently, that’s misleading. We have an appointment with the kitchen planner next week. Let’s see what they say.
ypg schrieb:

Both hallways on the ground floor and upper floor, as well as the area below left between the sofa and dining area, have an unbalanced amount of space. I’d say it’s deceptive, the design has several drawbacks. To me, the mentioned lack of space is unsatisfactory, especially for a large house.

Do you perhaps have another creative suggestion on how to optimize this? 🙂
Y
ypg
17 Feb 2023 00:11
epinephrin schrieb:

Do you maybe have another creative suggestion on how to optimize this? 🙂
I can give it a try over the weekend 🙂