ᐅ Properly Dividing a Plot of Land for a Single-Family House and a Duplex

Hello,

I would appreciate your tips and advice regarding the following situation:

A plot of land with 1100m² (11,840 sq ft) is to be divided so that the following houses can fit on it:
Part 1 – Single-family house with approximately 160m² (1,722 sq ft) of living space (2 full floors, flat or shed roof) + garage/carport
Part 2 – Semi-detached house, each half with about 150m² (1,615 sq ft) of living space (2 full floors, flat or shed roof) + garage/carport
The access road is located at the bottom, on the south side. A 3m (10 ft) wide access path is to be created for the semi-detached house.
The site coverage ratio (floor area ratio) is 0.4, and the floor space index is 0.7. Additionally, the Bavarian setback regulations must be observed.

I am a complete beginner but imagine dividing it somewhat like in the attached sketch. Does this make sense? Are there any particular points to watch out for, or mistakes to avoid? How is it best to arrange garages/parking spaces for the semi-detached house? Does it even make sense to place the semi-detached house at the back? Would it be easier in terms of access and parking to move the semi-detached house closer to the street (option 2)? Which option is more cost-effective regarding shading and best use of space?

Thanks in advance for your answers!

Regards

Where is the driveway of the entire property located?

Hausbauer schrieb:

A 3-meter-wide driveway is planned for the semi-detached house.

Why exactly three meters? On the plan, it looks like with a width of pi meters fifty (about 3.14 meters / 10.3 feet), an existing property boundary could simply be maintained?
But this is just a theoretical remark, because:

Hausbauer schrieb:

I am an absolute layperson,

I believe that immediately.

If I were the owner of the still undivided plot, I would first revise the plan and then develop the subdivision from that – not the other way around.

But honestly, the image gives me the impression that the yellow-outlined plot does not currently exist as such, but rather the yellow-outlined area currently represents two parcels: namely the entire plot for house number 1, to which a strip of land from the plot of house number 9 is to be added. The boundary runs between two outbuildings on the property on the right side of the plan and then turns along another outbuilding at the rear/top of the plan.

Does the owner of the entire property also want to remain the (possibly owner-occupying) owner of the individual house plot?

The situation almost sounds typical of trying to finance house construction (and inheritance tax?) through the sale of surplus land.

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The development plan will likely set more conditions than just the floor area ratio and the plot ratio. Without knowing the full development plan, many suggestions might miss the mark.

For a semi-detached house in the legal planning sense, a third building plot is missing.

Thanks for the quick replies!

ypg schrieb:

Where is the driveway for the entire plot?

The street (shown in white on the plan) runs along the south/bottom side. The driveway can be placed anywhere. Multiple entrances can also be created, for example to parking spaces for the front house.

11ant schrieb:

Why exactly three meters? On the plan, it looks like with a width of pi meters fifty, an existing property boundary could simply be maintained?

Maximum space utilization, also for setback requirements (the plot is in an area where you’d think there must be buried treasure to justify the price per m² (square meter)). Since the plot boundaries need to be adjusted anyway due to the subdivision, maintaining the original right-hand parcel shouldn’t offer a significant cost advantage, right?

11ant schrieb:

If I owned the undivided plot, I would first revise the plan and then develop the subdivision from that — not the other way around.
(...)
This scenario sounds almost typical for financing house construction (and inheritance tax?) by selling surplus land.

Your guess is pretty close to the reality, but the situation is a little different. The two parcels already practically form a single property; the division must be historic. The previous owner would sell the entire property to me, but the plot is too large and expensive for me alone.

So I’m looking for partners for the other parts so that the sale and subdivision can be done simultaneously. It’s not yet decided whether I’ll take the detached house or one of the semi-detached units. Since I’m not really a garden enthusiast, a compactly sized plot for either a detached or semi-detached house that still allows for a pleasant sunny terrace with a small lawn for children would probably suit me best. The appointment with the planner is delayed due to the Pentecost holidays, so I wanted to get a rough idea beforehand of what to watch out for and what questions to ask. And also to give potential partners a rough idea.

An important assessment would be whether a detached + semi-detached house is really feasible here, or if it would be better to go for two detached houses.

Escroda schrieb:

The development plan will probably set more conditions than just the floor area ratio and the plot ratio. Without knowing the complete development plan, many suggestions might miss the mark.

The development plan is actually surprisingly flexible.
Two full floors, any roof shape (pitch under 35°), no height limit, detached building style for single-family or semi-detached houses, at least two parking spaces per residential unit, Bavarian setback regulations, subdivisions are practically unlimited. Floor area ratio 0.4, plot ratio 0.7. The municipality also seemed quite open to minor exceptions (if well justified) in the initial phone call. They prefer housing for three families over housing for just one.

Escroda schrieb:

For a semi-detached house in terms of planning law, a third building plot is missing.

Yes, the boundary line would still need to be drawn in the middle of the semi-detached house plot.