ᐅ Floor Plan Discussion: Single-Family Home, 11.3m x 9.4m, 5 Occupants, Sloped Site

Created on: 19 Nov 2022 10:28
D
diaphon
Architectural plan on desk with ruler and rolled-up paper; office in the background


Hello everyone,

Thank you for taking the time to look into our building project!

## Development Plan / Restrictions

Plot size: 635m² (6,836 sq ft)
Slope: Yes, diagonal gradient approx. 8.5%
Site coverage ratio: 0.3
Floor area ratio: 0.4
For outbuildings (garage, shed), we are allowed to build up to an additional 50m² (540 sq ft).
Number of parking spaces: 3
Maximum ridge height: 8.7m (28.5 ft)
Building zone, building line and boundary: See ground floor plan (Blue: building zone; red dashed: outbuildings)
Contour lines: See floor plan
Roof shape and pitch: 0 to 50 degrees

## Homeowners’ Requirements

# General
5 people (2 adults, 3 children aged 5, 3, and 3 years)
Urban villa, hipped roof, 2 full floors plus basement

# Rooms
Open-plan living area (kitchen, dining, living)
Open kitchen (U-shaped)
4 bedrooms
3 bathrooms (one per floor)
1 office: home office
1 technical room
1 utility room
2 garages/carports
1 residential basement (for bedroom and office, basement may protrude up to 1.3m (4 ft 3 in) above ground)
Optional: walk-in closet
Optional: guest room
Optional: pantry
Optional: storage room
Optional: hobby room
Optional: granny flat (for KFW funding)

# Building Services
Geothermal heat pump with cooling function
Central ventilation system with bypass
Underfloor heating
KFW-standard: as low as possible, as high as necessary (cost-benefit ratio)
KNX smart home system: yes, where practical
Optional: photovoltaic system
Optional: rainwater cistern
Optional: greywater recycling

# Additional Wishes
Wood-burning fireplace (because we like the warmth and light)
Double carport or one garage + one carport (for cars, bicycles, and trash bins)
Sustainability where reasonable and cost-effective
Optional: home cinema in living room (hobby)
Optional: covered terrace (luxury: rainproof garden shelter)
Optional: workshop (always something to do)
Optional: kitchen garden (hobby)
Optional: greenhouse (hobby)

# Other
Depending on costs, it may make sense to include some features during construction that can also be added later.
It is more important to us that aspects which are difficult or impossible to change later (e.g. house size, walls, windows, bus system) are right from the start.
For some other items, we are willing to compromise initially (e.g. cheaper kitchen, furniture, lamps).

## House Design

Overview of the entire plot with building boundaries for the house (blue) and outbuildings (red dashed)
Access is from the front via a public road.
At the bottom left is a public parking area with 3 spaces between 2 trees.
The 2.5m² (27 sq ft) in the central lower area is reserved for street sweeping machine access.
Adjacent to the plot on the left
The terrace is planned on the west side to provide some shade from direct sun in midsummer and because I want a roof over it. The building authority has noted that with a roof, we can only exceed the building boundary by about 1 to 1.5m (3 to 5 ft).

Ground floor plan of a single-family house with living room, kitchen, dining area, terrace, and garden.


Basement:

The basement is planned to extend about 1.3m (4 ft 3 in) above ground on the north side to allow sufficient daylight for the bedroom and office. It is also required not to level the plot.

Floor plan of a house with bedroom, office, storage/workshop/hobby room, bathroom, and utility room.


Ground floor (GF)

Floor plan of an apartment: Large living room with dining table, kitchen, bedroom, bathroom, and hallway.


Upper floor (UF):

From the upper floor, there will be a beautiful view to the north over the surrounding landscape, overlooking the northern neighbour.

Floor plan of an apartment: Bedroom with bed, bathroom, hallway, and two living areas.


# The floor plan is our original creation and is currently with the architect from the construction company.
More than 40 different versions with various larger and smaller adjustments and different approaches were necessary.
Although a lot of time and thought has gone into the planning, I look forward to honest and constructive feedback without compromise!
What we don’t consider now will mainly annoy me after the build. Of course, I understand that not everything can be perfect afterwards. ;-)

# Our impression of the floor plan
We really like the ground floor. The open layout of kitchen, dining, and (small) living area.
Separately set apart is the (large) living room with TV. The fireplace is integrated into the center.

As long as the kids are young, everyone can sleep upstairs. Later, they can fight over the basement bedroom. ;-)

Initially, we wanted 4 bedrooms on the upper floor, but the rooms then get small and the ground floor and basement become disproportionally large.
Therefore, we currently tend towards 3 bedrooms upstairs and 1 bedroom plus office in the basement.

I am unsure about the connection on the ground floor between the open living area and the TV room.
How much space should be left to keep the rooms separate but still open in design?

The floor plan and driveway from the south side make planning more difficult, in my opinion.
With access from the side, we have more views towards the southwest.
However, the (uncovered) path to the front door will be longer.
Is this a problem?

# What is the most important/basic question about the floor plan in 130 characters?
What problems and/or improvement suggestions do you see?

# Additional questions:
There is only one other house between our future home and a daycare center. What kind of sound insulation should we focus on?
kati133719 Nov 2022 19:49
Costruttrice schrieb:

I believe an architect should be given free rein to develop a design that meets your budget and requirements. For a project likely to reach a million, I wouldn’t consider my amateur sketch as the final word and just have it drawn up professionally.

I completely agree with that.
For our first home build, we started with a good general contractor’s floor plan as a basis. Those are usually quite efficiently designed and are often built exactly as planned. We tinkered with it here and there (at the time thinking it was optimized for us), and after living there for two years, we noticed flaws in every one of our so-called “improvements.”
The house was still a great home, of course. But what I want to say is: we are not architects, and we shouldn’t try to do their job ourselves.

For this build, we took our written list of requirements straight to a professional and had the design created. This time, it feels completely different.

We go to professionals for every other area. To the doctor for health issues, to a lawyer for legal disputes, and to the auto shop for inspections. Only when it comes to our home designs—which often involve a large part of our net income for the next 30 years—do we seem to think, “oh, never mind, even if it’s a university subject, I can do that myself.” 😉
H
hanghaus2023
19 Nov 2022 23:05
Show us a section of the development plan. Photos of the plot and the surroundings are also quite helpful. For example, I would place the central heating unit next to the house.

No windows in the basement at all?

Which state or region are you in?

Why try to reinvent the wheel here? You can find quite good floor plans online.

The house seems somewhat too large for the budget.
D
diaphon
21 Nov 2022 15:49
Oh, weren’t there many more posts here before? 😳

After the note in the green forum, I have now added the windows in the basement.

Many of the comments and suggestions are on my mind a lot.

Thank you very much for your input so far. I will get back to you once we have progressed further in the planning and the budget has been reviewed.
X
xMisterDx
21 Nov 2022 17:27
kati1337 schrieb:

For every other issue, we turn to professionals. For health problems, to the doctor; for legal disputes, to a lawyer; and for vehicle inspections, to the auto workshop. But when it comes to our house designs, which usually involve a large part of our net income for the next 30 years, we tend to think, "Oh well, even if it’s an academic subject, I can do it myself." 😉

If you have the money, you go to an architect, yes... if not, you take a ready-made floor plan from the developer.
Above all, though, you should take some time to review your budget before getting started, even if you’re the one sketching with pen and paper. Otherwise, you might quickly find yourself needing an architect after all 😉

I don’t think the comparison with a vehicle inspection is accurate here. It would be more fitting to compare it to buying a new car. Very few people opt for a fully custom design all the way down to modifying the bodywork.

P.S.:
Even with a standard floor plan of one of the best-selling houses in Germany, the Flair 152 RE, I already found several "pain points" before starting the interior fit-out that I wouldn’t approach the same way next time 😉
kati133721 Nov 2022 17:32
xMisterDx schrieb:

If you have the money, you go to an architect, yes... if not, you take a ready-made floor plan from the developer.
But above all, you should deal with your budget before starting, even if you draw the plans yourself. Because you’ll quickly move away from the architect again 😉

I don’t think the comparison with a car inspection is accurate. It would be more like buying a new car. Only a few people opt for a fully customized design, including body modifications, etc.

We didn’t hire our own architect. That was handled through a construction company, but they work with architects. For the custom planning, we signed a separate contract for €1500 (about $1600).
If we had chosen the construction company’s service, the fee would have been deducted from our building price. Instead, we decided on a different company and paid the €1500 (about $1600) directly for the design.
I thought the price was reasonable. When selecting fixtures and finishes in a new build, you can quickly spend ten times that amount, so I wouldn’t cut costs on something as essential as the design.

However, I don’t know how common such offers are. Maybe we were just lucky.
X
xMisterDx
21 Nov 2022 19:04
But there was already a draft available that was "only" adjusted, right?
1,500 EUR, for that the architect can work about 10 hours, 2-3 hours are already spent on the initial meeting?
Isn't it usually around 10% of the construction costs for the architect, when building a real architect-designed house?