ᐅ Single-family home with a secondary apartment, currently for 2 adults, children planned

Created on: 2 Apr 2020 14:35
A
AndreaT
Development Plan / Restrictions
Plot size: 665 sqm (7151 sq ft), the plot is flat
Slope: Adjacent to the plot, a forested slope begins to the south
No development plan. Local customary building allows 3 full floors and any roof style.

Number of parking spaces: 3
Number of floors: 2 full floors or 1 full floor plus an attic with a high knee wall
Roof type: preferably gable roof

Style: not a townhouse, not a timber house. Rather classic than modern
Orientation: The long sides of the house face north and south, the garden is on the south side


Client Requirements

Basement, floors: With a raised basement for building services, storage space, sauna, hobby/workshop
Number of people, ages: 2 adults, 32 + 37, children planned

Space requirements on ground floor and upper floor: I want to be able to live completely on the ground floor (barrier-free) in old age. A granny flat on the upper floor

Open or closed architecture: rather open
Conservative or modern construction: conservative

Open kitchen, kitchen island: Open kitchen preferred; kitchen island is optional
Number of dining seats: 6–8
Fireplace: yes

Garage, carport: 1 garage on the left side of the house, 1 double carport on the right side (border building)
Utility garden, greenhouse: yes
Additional wishes / special features / daily routine, including reasons why certain things are wanted or not wanted:

I work in shifts and sometimes need to sleep during the day. Therefore, a second bedroom/retreat on the upper floor is required.
The granny flat should have the option to be connected to the rest of the house (knock-through).


House Design
Planning by:
- Do-it-yourself

What do you like most? Why? All important rooms on the ground floor so that barrier-free living is possible in old age. Children will have their own floor later.
The bathroom on the ground floor is planned to be barrier-free, with a walk-in shower.

Personal price limit for the house, including equipment: 300,000
Preferred heating technology: Geothermal heat pump or pellet heating with Stirling engine, possibly photovoltaic and/or solar thermal (consultation appointment pending)

If you had to give up, which details / additions could you do without:
- The upper floor (as a separate apartment) can be developed later


Why did the design become what it is now?

A mix of many examples from various magazines with the goal of having everything on one level and giving the children their own floor later.
A granny flat would be desirable.

The stairs to the basement are missing. Inside the basement stairs should be underneath the stairs to the upper floor; also outside the basement stairs should be underneath the stairs to the upper floor.


What is the most important/basic question about the floor plan in 130 characters?

Does this make sense? What have I forgotten? What would you do differently? Does the granny flat concept work like this?

Site plan of a plot with a red outline and dimension details


3D floor plan of living and dining area with kitchen, stairs and sofa


Floor plan of a house: living room, kitchen, bedroom, bathroom, fireplace, garage, terrace, garden.


Floor plan of a 3-room apartment: kitchen, dining nook, living room, two bedrooms, two bathrooms.


3D floor plan of an apartment: living room, kitchen, dining nook and bedroom.


Floor plan of an apartment with kitchen, dining table, living room, three bedrooms and two bathrooms.
11ant3 Apr 2020 14:53
Alessandro schrieb:

A wise man once told me: For the cost of a guest room that is used 10-20 times a year, you could pay for hotel rooms for your guests for life. It never adds up!

That is true.
Alessandro schrieb:

The same applies to a secondary apartment.

That is only partly true. Especially in cases where the municipality has not enacted any regulations against AirBnB and similar platforms, and/or where worker housing, student apartments, etc., are in demand, the situation can be very different. Only in the usual case is rental income from a single rental unit a non-viable business, benefiting only others (financing advisors, builders).
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
A
AndreaT
3 Apr 2020 19:56
11ant schrieb:

@AndreaT: Tell me your postal code area, then I can check who else is around there.

Postal code area 51, so the outskirts of Cologne. We definitely prefer a regional approach over a glossy mass-produced product with a well-known brand name!
Matthew03 schrieb:

Wouldn’t you like to bring your own thread to life a bit? You’re not answering basic but essential questions...

What exactly is the reason for the low budget? How does it help you if your bank advisor sets your monthly payment? You should specify that yourself!
Some here have already calculated that with your plan, you won’t just slightly miss your budget but will exceed it by a long shot... Does money not matter? Why then specify 300k and not just write "doesn’t matter"?

Sorry, I was working the last few days and mostly online only via my phone.

The land is already purchased, so that is no longer part of the calculation.
The bank advisor would approve 550K, but I’m actually taking a more “conservative” approach and would like to keep the budget lower for that reason.
That’s where the planned 300k come from, but it’s not fixed.

We’re roughly planning 150–180 sq m (1,615–1,938 sq ft), possibly with additional expansion reserves (so the full area does not have to be livable from the start but could be fully realized later, for example by finishing an attic).

There’s a university in the neighboring town, and since we are in the Cologne commuter belt, the target group for the granny flat would actually be students, teacher trainees, or commuters.

We have an appointment with the architect next week, so I’ll probably know more then.
11ant3 Apr 2020 20:23
AndreaT schrieb:

Postal code area 51, so the Cologne metropolitan area. [...] There is a university in the neighboring city, and we are within Cologne’s catchment area,

So, the Deutzer side, and from the university I conclude it’s likely SU, not GL or GM.
AndreaT schrieb:

We definitely prefer something regional rather than a glossy mass-produced product with a well-known name!

That sounds good.
AndreaT schrieb:

Next week we have an appointment with the architect,

An independent architect (?)
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
A
AndreaT
3 Apr 2020 20:27
11ant schrieb:

Deutzer side then, and from the university I conclude SU, not GL or GM.

No, actually GM
11ant schrieb:

An independent architect (?)

Yes, it’s about a basic consultation. Basically a “needs assessment,” and then seeing what makes sense for us. For example, prefab or solid construction, which type of building method, basement yes or no, etc.
11ant3 Apr 2020 20:41
The private messaging function is currently quite problematic here, but I also don't want to publicly discuss everything about the local construction companies. If you like, you can also contact me by email – my address at gmx (de) is also 11ant.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
A
AndreaT
3 Apr 2020 20:51
11ant schrieb:

The private messaging system here is currently quite problematic, but I also don’t want to publicly share too much about the local construction companies. If you like, you can also contact me by email – on gmx (de) I’m also called 11ant.

I will send you an email. Thanks!