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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Arauki11
27 Nov 2025 13:31
lucaskilam schrieb:

No, the exterior appearance will not change. The architect is currently only revising the floor plan and interior design.

I have been following the thread and am currently puzzled by this statement. The criticisms were significant and related to several aspects, so I wonder whether—and especially why—any revisions must necessarily fit into the existing building structure instead of simply redesigning those areas freely. By sticking to this hall-like building section, the design freedom is greatly limited, or is it perhaps that the architect finds this too much work or lacks the necessary ideas?
K
kbt09
27 Nov 2025 13:34
I can only agree with @Arauki11 on that. Especially the current shell reveals some of the problems.