ᐅ New single-family house approximately 190 sqm with double garage, no basement – Design No. 3

Created on: 19 Feb 2020 20:20
T
Thorsten78
Hello everyone,

We have just purchased a plot of land and are now at the stage of planning our house.
After two initial attempts at designing it ourselves without much success, we have now met with a structural engineer who helped us create a floor plan tailored to our needs.
I would like to share this design here for discussion.
We have already chosen a local builder. The plan is for a timber frame house with solid wood interior walls and a timber frame exterior wall filled with blown-in wood fiber insulation.
The entire house is intended to meet the KfW 40+ energy efficiency standard eventually.

Development Plan/Restrictions
Plot size[/B] 760m² (about 8,180 sq ft)
Slope
no, maximum height difference 90cm (35 inches)
Floor area ratio (FAR)
0.3 (but previously built structures did not comply)
Plot ratio (building density)
0.6 (but previously built structures did not comply)
Building envelope, building line, and boundary
see attachment
Boundary development
yes, garage
Number of parking spaces
two per plot, minimum 5m (16 ft) in front of the garage
Number of floors
Knee wall max. 0.50m (20 inches) (but previously built structures did not comply)
Roof style
Gable roof 30-38°, hipped roof, shed/flat roof 25%

Architectural style ---
Orientation
---
Maximum heights/limits
---
Additional requirements
natural red bricks

Owners’ Requirements

We are a small family: two adults, age 41, and one child, age 6. Our family planning is complete.
We would like a detached single-family home with two full stories, no basement, a double garage, and a storage room as a basement substitute.
The architecture should be modern, bright, with an open living/dining/kitchen area.

Architectural style, roof type, building type

- Modern
- We currently favor a gable roof with a 22° pitch.
- We also like the idea of a pyramid (hip) roof, but unfortunately, this roof type is less than ideal for installing photovoltaic panels.
- Large windows for lots of light inside, including external venetian blinds for shading.

Basement, floors
No basement, two full floors

Number of occupants, age

2 adults, 41 years old, and 1 child, 6 years old

Space requirement ground floor and upper floor

Total living area 180-200m² (1,940–2,150 sq ft)

Office: family use or home office?

Office on ground or upper floor

Guest bedrooms per year
None planned

Open or closed layout

Open

Traditional or modern construction

Modern

Open kitchen, kitchen island

Yes, yes

Number of dining seats

Dining table for 6-8 people

Fireplace

No

Music/surround sound system

If possible, multi-room audio

Balcony, roof terrace

No

Garage, carport

Double garage + storage room as basement substitute


Utility garden, greenhouse

Low-maintenance garden, lawn with irrigation system, possibly raised beds

Other wishes/special features

Photovoltaic system including battery storage, KNX smart home system

House Design
Designer:
- Planner from a construction company

Structural engineer
- Architect

No
- Do-it-yourself


What do you particularly like? Why?
Dry access from garage to house, spacious living area with a nice terrace

What don’t you like? Why?
Despite minor compromises, everything is fine

Price estimate according to architect/planner:

€440,000 (house KfW 40+ including double garage)

Personal overall budget limit:
€580,000 including plot (€65,000), landscaping, kitchen, furnishings

Preferred heating system:
Heat pump and central mechanical ventilation with heat recovery

If you had to give up something, which details/features
- Can give up:

Smart home and battery storage
- Cannot give up:

Two full stories, double garage, modern open design


Why did the design end up as it is now?

We wanted to make the best possible use of the plot.
Basically, we would have liked to orient the terrace towards the southwest, but unfortunately, there is the street there, and I don’t want to be completely exposed.
Also, the west side is the weather side with a lot of wind.

What do you think makes it especially good or bad?
???

What is the most important/fundamental question about the floor plan in 130 characters?
What do you think of the design, and what could be done differently?
We might want to redesign the bathroom, maybe a T-wall?
Would you change anything about the window layout?

We would appreciate any ideas or constructive criticism very much.

2D floor plan of a single-family house with kitchen, dining, living area, terrace, and garage.


Upper floor plan with master bedroom, child’s room, office, playroom, bathroom, hallway.


Four views of a modern house with garage, trees, and cars (west, east, south, north).


Technical drawing: house with double garage, sections, and dimensions.
kaho67420 Feb 2020 09:05
ypg schrieb:


I guess the panoramic view with the "tunnel" leading to the terrace was deliberately chosen because it was seen somewhere. However, one should check whether the room in the photo is actually about 6 meters (20 feet) or wider.

Above all, it blocks the west-facing sun from the terrace. So in the evening, you end up sitting in a dark tunnel instead of enjoying the sunlight. I find that completely absurd.
H
haydee
20 Feb 2020 09:54
Budget
Bavaria is not the same everywhere. It can be very rural with corresponding prices. For example, parts of the Upper Palatinate could be somewhat more affordable.
However, it is very ambitious, especially with the level 40+ specifications—I realistically see the cost around $440,000 without the garage. Earthworks will also be more expensive with a depth of 90cm (35 inches).
Own labor is not mentioned, and much depends on the specifications.
Have you already compared the scope of work description with your wishes?

Regarding the floor plan.
Be sure to draw all furniture to scale and include the space needed for occupied chairs at the table.
A length of 11m (36 feet) for the open-plan living area works—we have a similar size, and it does not feel like a hall, especially because of the large glass front facing the garden. But our room is wider. Yours is too narrow.
The design element for your terrace could reduce a lot of light inside, and you will probably spend many evenings sitting outside.
On the upper floor, swap the children’s and parents’ rooms. Children need natural light, while parents need less for sleeping. I would plan the office larger.
Put the laundry where it is generated upstairs and make the playroom a bit smaller.
T
Thorsten78
20 Feb 2020 13:04
Thank you for your replies and suggestions.

I wanted a partially covered terrace, so this was the planner’s proposal.
Do you really think the 2.5m (8.2 ft) walls would darken the room that much? Would opening up the side walls make a big difference?
We have also already considered the evening sun, but I thought the sun would disappear behind the bay window anyway.

In the initial plan, the children’s and parents’ bedrooms on the upper floor were swapped. Unfortunately, this solution was too tight because of the staircase.
We don’t mind that the children’s bedroom is now located in the northeast. Our child only spends time there at night anyway.

Of course, we would prefer the living space to be 5m (16.4 ft), but then the house would become larger, or we would lose quite a bit of storage space.

Maybe one of you has some ideas on how we could change this.

Regarding the construction costs, I based them on the initial specifications of the first two drafts, which were similar in house size.
The new specifications are currently being planned.
We are planning to do a lot of work ourselves (such as electrical work, flooring, painting, drywall, landscaping).
H
haydee
20 Feb 2020 13:14
Not bigger. Our open-plan living area is almost 6 meters (20 feet) wide but only 10.5 meters (34 feet) long. Overall, our house is not larger.

You have much more hallway. Different staircase, smaller hallway, no storage room, larger open-plan living area. Upstairs, utility room, smaller children’s area, larger study, children’s and parents’ areas swapped.
G
Grantlhaua
20 Feb 2020 13:22
Thorsten78 schrieb:

I wanted a partially covered terrace

So why use walls then? Why not a slim column to support the roof?

Why not combine the two storage rooms in the garage and the adjacent one inside the house into a single technical room? That would be large enough to also store garden equipment, and you could enlarge the pantry around the technical room to create a spacious storage area. Alternatively, you could move the toilet into the former technical room.

Then you could either extend the kitchen around the corner or make the open living area half a meter or even a full meter wider.
Y
ypg
20 Feb 2020 17:14
Thorsten78 schrieb:

Do you really think that 2.5m (8.2 ft) walls darken the room that much? Would it help a lot to open the side walls?
Yes. The corners and walls actually block the sunlight. You could map out the sun’s position for each season at 12, 3, 6, and 9 p.m. to see this.
Thorsten78 schrieb:

We don’t mind that the child’s bedroom is now located in the northeast. Our child only stays there at night anyway.
Uh... I would expect a bit more foresight from my guardian, even if I’m not asked. The child spends more time in the bedroom than you do in your bedroom,