ᐅ Duplex floor plan with approximately 165 m² and 150 m² / with a pitched roof / dormer windows

Development Plan / Restrictions
Plot size 715 m2 (7,694 sq ft)
Slope 1 m (3 ft)
Site coverage ratio 45
Floor area ratio 30
Building envelope, building line, and boundary 12 x 18 meters (39 x 59 feet)
Edge development
Number of parking spaces 4
Number of stories / regulated by eaves height (4 meters / 13 ft) and ridge height (9.5 meters / 31 ft)
Roof type Gable
Architectural style Modern
Orientation
Maximum height / restrictions 9.5 meters (31 ft)
Additional requirements

Client Requirements
Architectural style, roof type, building type
Basement, floors Full basement
Number of occupants, ages: 2 adults and 2 children aged 6-8 years
Space needs on ground floor and upper floor as open as possible
Office: family use or home office? Family
Number of overnight guests per year Few
Open or closed architecture Open
Conservative or modern style Modern
Open kitchen, kitchen island
Number of dining seats
Fireplace yes
Music / stereo wall
Balcony, roof terrace: attic with balcony
Garage, carport 2 garages (with enclosed parking space in front)
Utility garden, greenhouse
Additional wishes / special features / daily routine, including reasons for preferences or exclusions

House Design
Planner: Architects and clients
- Builder’s planner
- Architect Yes
- DIY
What do you especially like? Why? In the optimization phase
What do you not like? Why?
Price estimate according to architect / planner:
Personal price limit for the house, including equipment:
Preferred heating technology: Photovoltaics + geothermal

If you have to give up on certain details or extensions
- What can you give up:
- What can’t you give up:

Why is the design as it is now? For example:
Standard design from the planner? No
Which requests were implemented by the architect? Yes
A mix of many examples from various magazines...
What makes it particularly good or bad in your opinion?

What is the most important / fundamental question about the floor plan in 130 characters or less

I have read many posts and am very happy to find such a forum.
We are still in the optimization phase, aiming for optimum use of space.
We also want to take advantage of the slope.
It will be a duplex, our half is about 80 cm (31 inches) wider.
Plinth height planned 25 cm (10 inches) above reference height, allowing a clear height of 2.80 meters (9 ft 2 in) in the ground floor, first upper floor 2.65 meters (8 ft 8 in).
The unusual beams serve as a visual reference for the slope.

Looking forward to your feedback.

Best regards

Mexx110

I don’t quite understand yet: Is the entire plot 715 sqm (7,700 sq ft), or is that just your portion?
Why are you including your partner’s part of the plot in your plans? How does your partner actually get access to their house?

Mexx110 schrieb:

Slope 1m (3.3 ft)

Your beams don’t work for us. Maybe you should upload a hand-drawn site plan showing the slope.

Mexx110 schrieb:

Site coverage ratio 45
Floor area ratio 30

I don’t understand this either: site coverage ratio and floor area ratio are usually expressed as decimals (0.x). Or are there recent regulations I missed?

Mexx110 schrieb:

Number of parking spaces 4x

The house’s right-hand side only has space for one actual parking spot. Blocking it, especially with such a long driveway, won’t be accepted by the authorities and also isn’t practical.

Mexx110 schrieb:

It will be a semi-detached house; our half is about 80 cm (31 inches) wider.

Which one is yours?

I find the plans quite unclear. Measurements are missing.
And what about the slope in relation to the basement?
Attic: where does it start (without counting the small sections)? Does it extend over both halves?
Also, don’t the side dormers break the eaves height? As far as I know, dormers must have a minimum distance to the gable to count as dormers; otherwise, they aren’t considered dormers.

Now I have also found the upper floor 🙂

So: the attic space shared by both units is not possible due to the fire wall. Alternatively, it would have to become a two-family house. In any case, for a semi-detached house, the dream of a paradise under the roof won't work.

Regarding the design itself:
- The garage layout and the exterior areas are terrible.
- Many "beginner dreams" are either not feasible or not functional. For example, one children’s room has no view (only double casement windows), while the bedroom faces fully south, which is not really ideal for sleeping.
- The ground floor is roughly okay, provided the basement cooperates.
- Structural engineering has not been considered at all.
- The cost factor has not been taken into account.

Mexx110 schrieb:

Site coverage ratio 45
Floor area ratio 30

I don’t understand that – please show the original land use template.

Mexx110 schrieb:

I have read many posts

Well, at least my constant reminder that you shouldn’t plan semi-detached houses as halves, because of the sums...

Mexx110 schrieb:

We also want to make use of the slope.
It will be a semi-detached house, our half is about 80 cm (31 inches) wider.
Foundation height planned 25 cm (10 inches) above reference level, allowing the clear height on the ground floor to be increased to 2.80 meters (9 ft 2 in), first upper floor 265 cm (8 ft 8 in).
The odd beams are for clarity regarding the slope.

The odd beams “serve,” to put it kindly, rather “not” as an aid for clarity – and if the section drawings are correct, I wonder where you see a usable slope. Why it should be a benefit for the ground floor’s clear height to start above the reference level is unclear to me – as expected, the effect is usually the opposite.

The “dormers” here are on one hand cross gables, and on the other hand their width exceeds what contemporary zoning plans typically allow. It has already been pointed out that their position on the gables is probably also problematic regarding exemptions.

---

https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/

Did I count correctly? The semi-detached house measures 9m (30 feet) by 13m (43 feet).