ᐅ Floor plan design for a new build modern semi-detached house with 6-meter ceiling height and 239 square meters of living space

Created on: 9 Nov 2025 23:46
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lucaskilam
Hello everyone,

I am planning to demolish my existing semi-detached house and build a modern residential building on my property.
The new house will again be attached directly to the existing neighboring half.

The plot measures 1,027 sqm (about 11,060 sq ft), and the design comes from my architect.
I would appreciate honest and constructive feedback on the floor plan and room layout.
Elevations and floor plans are attached.

Development plan / restrictions
  • Plot size: 1,027 sqm (half share use for semi-detached house)
  • Slope: no slope, flat area
  • Site coverage ratio: 0.3
  • Floor area ratio: 0.5
  • Building envelope / building line / building boundary: according to development plan, semi-detached house permitted
  • Edge development: attached to existing neighboring half
  • Number of parking spaces: 2
  • Number of floors: 1.5 floors
  • Roof type: gable roof
  • Architectural style: modern, clean lines
  • Orientation: garden facing southwest
  • Maximum building height: 10 m (33 ft)
  • Other requirements: only one full storey allowed

Client requirements
  • Building type: semi-detached house, new build after demolition
  • Basement: no
  • Living area: approx. 239 sqm (2,572 sq ft)
  • Occupants: 5 persons (2 adults, 3 children)
  • Ceiling height in living area: approx. 6 m (20 ft)
  • Living/dining area: approx. 44 sqm (473 sq ft), open and bright
  • Office: home office on ground floor
  • Guest bedrooms: rare use (max. 2–3 times per year)
  • Architecture: open, modern, large windows
  • Construction method: solid construction
  • Kitchen: open with cooking island
  • Seating capacity: 6–8 people
  • Fireplace: not planned
  • Music/stereo wall: possible
  • Balcony / roof terrace: currently not planned
  • Garage / carport: double carport
  • Garden: low maintenance, for family use
  • Special features: high, open living area with gallery

House design
  • Designed by: independent architect
  • Positive aspects: the open living area with gallery and high ceiling, generous lighting
  • Less favorable aspects: access to the gallery not yet optimal
  • Price estimate according to architect: approx. 850,000 euros (including fittings, excluding landscaping)
  • Personal budget limit: approx. 900,000 euros
  • Heating system: air-to-water heat pump with underfloor heating
  • Could be omitted: guest room on ground floor
  • Must have: high ceiling in living area, open kitchen, gallery
  • Reason for design: combination of modern living concept and development plan requirements (only 1 full storey, mandatory attachment)
  • Special features: despite semi-detached structure, a spacious feel through 6 m ceiling height and open gallery

I look forward to honest criticism and suggestions for improvement, especially regarding:
  • Floor plan layout
  • Lighting and window areas
  • Proportions with 1.5 floors
  • Practical everyday use (family with three children)

Thank you in advance for your feedback!

Best regards,
lucaskilam
Two-story floor plan of a house with kitchen, living room, and bedrooms

3D view of a brick house model with dormer windows, brick facade, and dark roof

Modern two-story brick house facade with large glass fronts, 3D rendering.

Section through a house showing roof, stairs, and foundation in raw construction state
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lucaskilam
12 Nov 2025 07:31
Thank you very much for all the helpful comments.
We have an appointment with the architect on Monday to discuss several points.
I used the architect’s SketchUp project file and placed some furniture.
I am attaching the 3D renderings. There are two versions:
one with the current design and another with the provisional gallery I added, based on your suggestions regarding the ceiling height in the living and dining area.
Thanks again for the support.
I will get back to you as soon as the revised design is available.

Best regards,
lucaskilam
Open 3D living area with sofa, kitchen island and large bookshelf.

Open 3D living room with sofa, dining table, pendant lamp and stairs inside
In der Ruine12 Nov 2025 07:59
Now you have a gallery that is 0.5m (20 inches) wide in front of a bare wall without windows. Why?
This could be an opportunity to bring light into the rooms behind the wall.
How do you get onto the gallery, and how do you use it?
A
Arauki11
12 Nov 2025 08:21
In my opinion, this is a common issue with experimenting using various PC programs. Everything initially seems clear and visually appealing, but people tend to overlook the importance of precise details and measurements, which you can quickly recognize on a floor plan with actual dimensions and furniture.

The original poster (OP) does not yet seem to realize that the floor plan or design will completely change as soon as any adjustment is made. If you move something here, something else shifts elsewhere.

That is exactly why the floor plan needs to be developed step by step, rather than trying to force a beautiful image backwards into exact numbers.

Therefore, there will be a completely new approach, which is not a problem at all. Imagining possibilities is always allowed.
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lucaskilam
12 Nov 2025 08:50
ypg schrieb:

What do you think, @lucaskilam?
Is it no longer worth responding for you?

Sorry for the late reply, and thank you for your response.
Our share of the plot is 1027 square meters (11051 square feet). There is a fixed building area, and the plot is located in 21109 Hamburg.

Aerial view of a residential neighborhood with a red property boundary around a house plot
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lucaskilam
12 Nov 2025 08:57
Sorry for the late reply and thank you for your response. We had a pipe burst in the office, which left me a bit overwhelmed – hence the delayed answer. Is the attached photo sufficient?

Aerial view of a residential area with a red property boundary around a building plot
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lucaskilam
12 Nov 2025 09:02
roteweste schrieb:

Hi, since we recently planned a single-family house with three children’s bedrooms ourselves, I might be able to contribute something.

1. The hallway on the ground floor feels poorly lit. You probably want to set up a wardrobe next to the stairs. Think carefully about whether you want your three kids to walk through half the ground floor with dirty shoes.

2. I like the split between living, dining, and kitchen areas – those who have it, can use it. To really highlight it, in my opinion, you would need a wider passage width.

3. Kitchen: The island is cool, but the distance from the cooktop to the rest seems too large for efficient everyday work. That would annoy me over time.

4. Three kids and no bathtub? And yes: a children’s bathroom makes absolute sense, especially since your main bathroom is quite compact. I would treat myself to that luxury.

5. Do you like your children? No offense – but given the size of the house, you could easily gain 1–2m² (11–22 sq ft) more space for the children’s bedrooms upstairs, for example by removing the walk-in closets. I would also reconsider the window sizes in the children’s rooms.

6. Do you really want to live in such a dark block?

7. The budget could get tight.

Sorry for the late response and thanks for your reply.
We had a pipe burst in the office, and I was a bit overwhelmed, hence the delayed answer.

We now have an appointment with the architect on Monday and will discuss several things, especially the entrance area. A wardrobe there definitely makes sense, thanks for the suggestion. A bathtub is rather not desired, and we hope the size of the children’s rooms will be okay.