ᐅ Sealed surface area exceeded

Created on: 4 Jun 2024 14:00
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cp03525
I own a small house with a living area of 80 m² (860 sq ft). Due to poor structural condition, the house is to be demolished and rebuilt on the same site with the same footprint. The nearly 500 m² (5400 sq ft) plot only contains the house, a single garage, a double garage, and a paved driveway/turnaround area in front of the garages. This means about 80% of the plot is covered with impermeable surfaces.

According to a phone inquiry with the building authority, either 40% or 60% impermeable surface coverage would be permitted. There is no grandfathering of the existing situation. This means I either have to demolish the garages, which are very solidly built and I do not want to remove, or I have to remove the paved driveway, resulting in driving over bare soil to reach the garages.

Since I already have a 40 m (130 ft) long driveway and there are rarely free parking spots on the street where the driveway connects, I cannot do without the garage.

Does anyone know if there might be further exceptions, or do I really have to plan on driving through mud to reach my garage?
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haydee
6 Jun 2024 16:20
I think three garages are a lot for such a small plot. Could you try drawing it out?

Check what is considered impermeable surface. Grass pavers might be a solution, or gravel with reinforced grid (which is drivable and doesn’t get muddy).

Cars can also be parked outside, for example on grass pavers.
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cp03525
6 Jun 2024 17:01
haydee schrieb:

I think three garages are a lot for such a small plot. Can you sketch it out?
Find out what counts as sealed surfaces. Grass pavers might be a solution, or reinforced gravel (driveable and doesn’t get muddy).
Cars can also be parked outside, for example on grass pavers.

Sure, that’s all possible. I could even demolish everything and live in a tent on the lawn. The thing is, demolishing the house is expensive enough. The garages and the paved driveway in front are perfectly fine. Why should I tear down garages and paving stones only to build grass pavers? I would be spending a lot of money for a downgrade.
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ypg
6 Jun 2024 17:22
cp03525 schrieb:

Why should I demolish garages and paving stones?

To comply with your allowed floor area ratio. It’s that simple.
cp03525 schrieb:

I could also just demolish everything and live in a tent on the lawn.

Let’s keep things realistic. You need to understand that a forum can’t advise your building authority, nor does it make sense not to at least plan with options that keep you within the permitted limits. These options have been suggested to you, but instead you’re stuck in a negative loop instead of working with graph paper.