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

Floor plan of a house with garage, terrace, and garden.


First Floor

First floor plan of a house with corridor, guest room, office, bathroom, and two children's rooms.


Attic

Attic floor plan: hallway/dressing area, bedroom, bathroom, staircase, garage area.


Basement

Basement floor plan with storage room, hobby room, corridor, heating room, and utility room.


Section

Cross-section of a multi-story house with stairs, corridors, and rooms (living, bedroom 1).


South Elevation

Architectural rendering of a two-story house with gable roof, dormer, windows, and garage.


East Elevation

East elevation of a two-story house with tiled roof, dormers, central entrance, and extension.


West Elevation

Front elevation of a house with mansard roof, dormer, three windows above and two doors below.
H
hanghaus2023
24 May 2023 08:40
Have the architect show it to you. I tried once, but it doesn’t really work since the image used as a basis is already skewed.

Two-story house with gable roof, central dormer, multiple windows at the front, and garage.
H
hanghaus2023
24 May 2023 09:14
Are there any photos of the existing building? The floor plan of the demolition looks interesting. Why was it not necessary to comply with the 0.8 H rule back then?
11ant24 May 2023 11:55
hanghaus2023 schrieb:

Have the architect demonstrate it for you. I tried once, but it doesn’t really work because the base image is already distorted.

I think for the purpose of simulating whether it would create the dominance of a “water head,” the attempt is sufficient. Who actually needs a panoramic view from the bedroom window?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
M
Mucuc18
25 May 2023 11:26
It does actually look a bit "top-heavy," so we might reduce the 2.40m (7 ft 10 in) shown here back to 2m (6 ft 7 in) after all.

South view of a house with dormer, windows, and terrace door – architectural drawing


For better planning of the kitchen—especially regarding tall cabinets—we have decided, at least for now, not to include a door between the hallway and the kitchen. This is especially since a sizable shaft for the mechanical ventilation system ducts has been installed in the corner of the kitchen...

Ground floor plan: open kitchen/dining/living area, dining table, kitchen island, stairs, entrance.

hanghaus2023 schrieb:

Are there any photos of the existing structure? The demolition floor plan looks interesting. Why wasn’t the 0.8 height clearance observed back then?
I can look those up. The protruding part of the building on the south and west is a single-story conservatory, which likely did not trigger any setback requirements in the (then valid) development plan.
11ant25 May 2023 14:04
Good gracious. Take a look at the chimney flue half-shells (especially opposite the central heating valve) and also some of the wall sections between the windows (where the workmanship issues really stand out again). The graphic-symbolic texture of the roof tile surfaces in the elevation view also reinforces the concern that this site shouldn’t be "skimmed over" during the inspector’s visits. ;-)

Am I correct in assuming that we are dealing here with a general contractor who sees themselves as "premium"?
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
J
Jasmin
25 May 2023 14:09
Hello, a simple question. What are "Pfuschertaschen"?