ᐅ Improvement Suggestions for a Single-Family Home with 137 sqm of Living Area and a Secondary Apartment

Created on: 3 Jan 2020 18:08
M
Maartina
Hello, we are planning our house, which we want to share with my mother (separate apartment approximately 70 sqm (750 sq ft)). We want to maximize the floor area with 137 sqm (1,475 sq ft). Maybe someone has ideas, suggestions, or improvements. We are grateful for any input.

Development Plan / Restrictions
Plot size 459 sqm (4,940 sq ft), 21.5 * 21.4 meters (71 * 70 ft)
Site coverage ratio 0.3
Building area 15.4 * 13.4 meters (50 * 44 ft)
Building line 3 meters (10 ft) and boundary line 5 meters (16 ft)
1.5 storeys
Roof type: steep roof, minimum 35 degrees
Street-facing gable
Maximum heights / limits 9 meters (30 ft)
Other requirements: max 1.15 meter (3.8 ft) knee wall

Owners’ Requirements

2 storeys + expandable attic
Upstairs: 5 people, including three small children. Ground floor: 1 person, mother
Space requirements ground floor
Mother’s apartment: 2 rooms + living room + open kitchen,
separate office with WC.

Space requirements upstairs: 3 children’s rooms, master bedroom, open living and kitchen area, two bathrooms

Office: home office, possibly for visitors

Conservative construction
36 cm (14 inch) masonry
Open kitchen, kitchen island upstairs
Number of dining seats upstairs 6-8
Possibly a balcony
Garage added later
Staircase to attic with roof window accessible from both households

House Design
Designed by:
- Do-it-yourself
What do you dislike? Why? Dark corridor
Personal budget for house including fittings: 400,000
Preferred heating system: heat pump

Why is the design like it is now?
What do you think is particularly good or bad about it? Maximum size utilized, difficult implementation due to sloping roofs

Thank you, maartina

Grundriss eines Hauses: Dreifachgarage links, Küche, Wohnzimmer, zwei Schlafzimmer, Bad, Büro, HWR.


Grundriss einer Wohnung: vier Schlafzimmer (oben drei, unten rechts), Wohnzimmer, Bad und Flur.
E
Escroda
22 Mar 2020 19:50
11ant schrieb:

You're welcome

Thank you.
11ant schrieb:

One question is about the maximum building volume

Of course, many parameters affect this. Based on the design, which uses the full footprint of 10.50m (34.4 feet) by 13.10m (43.0 feet), a knee wall height of approximately 1.80m (5.9 feet) would be possible.
11ant schrieb:

whether Katja’s proposal of having the children’s rooms in the attic would fail because that would count as a third floor.

Yes. You are absolutely right about that.
K
Kiki_
22 Mar 2020 22:43
Hi,
I only saw this thread today and also did a quick sketch.
The office would then be located in the attic space, with a knee wall height of 115 centimeters (45 inches) and a roof pitch of 50 to 55 degrees, which keeps the building just under 9 meters (30 feet) in height.
However, I’m not entirely sure if this meets the regulations for full storeys in Brandenburg.

Ground floor plan: kitchen, living room, bedroom, bathroom, hallways, utility room, scale 1:100


First floor plan with bedroom, walk-in closet, kitchen, bathroom, and three children’s rooms
U
User0815
28 Mar 2020 19:37
The floor plan seems to me as if the mother-in-law is building and also adding a secondary apartment for children and grandchildren who visit two to three times a year for about two weeks. Therefore, one more vote for discarding it and starting over.