ᐅ Single-family house of approximately 200 sqm with a double garage on a trapezoidal lot
Created on: 5 May 2023 15:45
M
Mucuc18
Hello dear house building forum community!
After carefully reading along for a while, I would now like to share our current design for constructive feedback.
Below are the usual details; south is at the bottom of the site plan:
Development Plan / Restrictions
Plot size | 512sqm (5509 sq ft)
Slope | No
Site coverage ratio | 160sqm (1722 sq ft) building footprint allowed for main building (+140sqm (1507 sq ft) overrun permitted for other structures)
Number of parking spaces | min. 1.5
Roof type | SD / WD or similar (mansard roofs are common in the area)
Maximum heights / limits | Ridge height 9.4m (31 ft) | Eaves height 6.5m (21 ft)
Additional requirements | Setbacks of 0.4 times the building height on two sides, 0.8 times the building height on other sides
Client Requirements
Architectural style, roof shape, building type | classic mansard-hipped roof, somewhat modern interpretation
Basement, floors | Ground floor, first floor, attic + basement
Number of occupants, ages | 2 (30 yrs, 33 yrs) + 1 (0 yrs) + occasional visitors
Space needs on ground floor, first floor | approx. 80–90sqm (860–970 sq ft) each for ground and first floors
Office | 1 office space needed for home office
Guest accommodation per year | to be determined, sometimes longer visits
Open or closed layout | rather open, but with adequate sound insulation and privacy
Conservative or modern construction | rather modern
Open kitchen, kitchen island | large open kitchen with island is important
Seating for dining | 4–6 seats regularly available, with option to extend
Fireplace | yes
Music / stereo wall | no, flexible hi-fi system
Balcony, roof terrace | no
Garage, carport | double garage
Utility garden, greenhouse | garden with beds and 2–3 trees, enclosed by hedge
House Design
Planner: architect & own ideas/drawings
What do you like most? Why? Separate parents’ floor, spacious open living area, straight staircase, number of rooms on first floor (flexibility), sufficient wardrobe space, staircase separated from living room
What do you dislike? Why? Location possibilities for heat pump outdoor unit, attic possibly has somewhat excessive space that might not be used efficiently (sloping ceilings)
Cost estimate by architect/planner: none so far
Budget for house including equipment: 1.4–1.5 million
Preferred heating technology: air-to-water heat pump
If you have to give up something, which details/features
- can be omitted: fireplace, pool, possibly double garage
- cannot be omitted: preferably a “large” garden
Why was the design developed this way? For example,
A mix of own ideas and architect’s input, along with several rounds of improvements over recent weeks. The main focus is on maintaining as much contiguous garden space as possible on a relatively small lot. Therefore, a setback on the east side is planned to comply with setbacks on the trapezoidal plot. The three floors plus basement help keep the house footprint small and separate the parents’ area from the children/guest area. We feel our wishes are well implemented in the current floor plan. Minor details such as window dimensions still need adjustment (e.g., equal-sized windows on the first floor west side, possibly a slightly larger sliding door on the ground floor, etc.).
What is the most important / basic question about the floor plan in 130 characters?
Do you see potential for improvement that we should consider or any no-gos we need to rethink? We are quite happy with the current status but appreciate input on aspects we may have overlooked or rationalized too optimistically.
Ground Floor
First Floor

Attic

Basement

Section

South Elevation

East Elevation

West Elevation
After carefully reading along for a while, I would now like to share our current design for constructive feedback.
Below are the usual details; south is at the bottom of the site plan:
Development Plan / Restrictions
Plot size | 512sqm (5509 sq ft)
Slope | No
Site coverage ratio | 160sqm (1722 sq ft) building footprint allowed for main building (+140sqm (1507 sq ft) overrun permitted for other structures)
Number of parking spaces | min. 1.5
Roof type | SD / WD or similar (mansard roofs are common in the area)
Maximum heights / limits | Ridge height 9.4m (31 ft) | Eaves height 6.5m (21 ft)
Additional requirements | Setbacks of 0.4 times the building height on two sides, 0.8 times the building height on other sides
Client Requirements
Architectural style, roof shape, building type | classic mansard-hipped roof, somewhat modern interpretation
Basement, floors | Ground floor, first floor, attic + basement
Number of occupants, ages | 2 (30 yrs, 33 yrs) + 1 (0 yrs) + occasional visitors
Space needs on ground floor, first floor | approx. 80–90sqm (860–970 sq ft) each for ground and first floors
Office | 1 office space needed for home office
Guest accommodation per year | to be determined, sometimes longer visits
Open or closed layout | rather open, but with adequate sound insulation and privacy
Conservative or modern construction | rather modern
Open kitchen, kitchen island | large open kitchen with island is important
Seating for dining | 4–6 seats regularly available, with option to extend
Fireplace | yes
Music / stereo wall | no, flexible hi-fi system
Balcony, roof terrace | no
Garage, carport | double garage
Utility garden, greenhouse | garden with beds and 2–3 trees, enclosed by hedge
House Design
Planner: architect & own ideas/drawings
What do you like most? Why? Separate parents’ floor, spacious open living area, straight staircase, number of rooms on first floor (flexibility), sufficient wardrobe space, staircase separated from living room
What do you dislike? Why? Location possibilities for heat pump outdoor unit, attic possibly has somewhat excessive space that might not be used efficiently (sloping ceilings)
Cost estimate by architect/planner: none so far
Budget for house including equipment: 1.4–1.5 million
Preferred heating technology: air-to-water heat pump
If you have to give up something, which details/features
- can be omitted: fireplace, pool, possibly double garage
- cannot be omitted: preferably a “large” garden
Why was the design developed this way? For example,
A mix of own ideas and architect’s input, along with several rounds of improvements over recent weeks. The main focus is on maintaining as much contiguous garden space as possible on a relatively small lot. Therefore, a setback on the east side is planned to comply with setbacks on the trapezoidal plot. The three floors plus basement help keep the house footprint small and separate the parents’ area from the children/guest area. We feel our wishes are well implemented in the current floor plan. Minor details such as window dimensions still need adjustment (e.g., equal-sized windows on the first floor west side, possibly a slightly larger sliding door on the ground floor, etc.).
What is the most important / basic question about the floor plan in 130 characters?
Do you see potential for improvement that we should consider or any no-gos we need to rethink? We are quite happy with the current status but appreciate input on aspects we may have overlooked or rationalized too optimistically.
Ground Floor
First Floor
Attic
Basement
Section
South Elevation
East Elevation
West Elevation
Expanding to 440cm (14 feet 5 inches) is not necessary in the kitchen. It is much more important for the kitchen to focus on access, the shaft for the bathroom in the attic, and the overall layout. The current approach results in a somewhat disjointed kitchen with inefficient workflows.
For the basement stairs, we will probably implement a recessed stair tread on the right flight. This has no disadvantages and provides a bit more flexibility for an inviting access to the living room, although you need to be cautious with the fireplace placement.
If this is done from the ground floor to the upper floor, the offset of the kitchen wall mainly causes some disadvantages for the upper and attic floors (including the open space area). A more open kitchen is always better of course, but I also think that with the 414cm (13 feet 7 inches) we already have, it should be sufficient.
If this is done from the ground floor to the upper floor, the offset of the kitchen wall mainly causes some disadvantages for the upper and attic floors (including the open space area). A more open kitchen is always better of course, but I also think that with the 414cm (13 feet 7 inches) we already have, it should be sufficient.
H
hanghaus20238 May 2023 07:51@Mucuc18 I took a closer look at it. Moving the wall only makes sense if it’s shifted on all floors, since the bay window would then be 26cm (10 inches) smaller. However, I see a problem in the attic with the headroom in front of the washbasins. As @kbt09 already mentioned, the gain in the kitchen is probably negligible.
Thank you again for all the advice; we are slowly approaching the finish line. (The result will of course be shared.)
A quick question: What is the maximum width for a double-leaf window with a parapet? We wanted to install a slightly wider window in the south dormer of the attic bedroom. According to planning, 2 meters (6.6 feet) is already considered the maximum for double-leaf windows.
Surely it can be a bit wider, right? Maybe someone can share their experience? (@11ant 😉
Otherwise, the placement of the heat pump remains a hot topic. Mounting it on the garage is apparently critical – so we are considering switching to an indoor installation.
A quick question: What is the maximum width for a double-leaf window with a parapet? We wanted to install a slightly wider window in the south dormer of the attic bedroom. According to planning, 2 meters (6.6 feet) is already considered the maximum for double-leaf windows.
Surely it can be a bit wider, right? Maybe someone can share their experience? (@11ant 😉
Otherwise, the placement of the heat pump remains a hot topic. Mounting it on the garage is apparently critical – so we are considering switching to an indoor installation.
H
hanghaus202323 May 2023 22:06For the wide window, it’s best to ask your window installer. Your architect should also know about this.
I have 2m (6.5 ft) myself, and it works without any problems.
I have 2m (6.5 ft) myself, and it works without any problems.
Mucuc18 schrieb:
We wanted to install a somewhat wider window in the south dormer of the attic bedroom. According to planning guidelines, 2m (6 ft 7 in) is pretty much the maximum for double casement windows.
Surely it can be a bit wider, right? Maybe someone with experience can weigh in? (@11ant 😉 )Absolutely not, relatively yes. I have two and a half meters (8 ft 2 in), but not in a dormer. In the drawing, I don’t see an absolute width, but the relative width seems to me already more than 2H (meaning for symmetrical casements more than 1H each). However, like with an entrance door, you can add a third hinge — then it would be a casement only with no tilt function.https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Similar topics