ᐅ Terrace Wall Adjacent to Neighbor – What Should We Consider?
Created on: 10 Jul 2025 18:48
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Bauherrin123
Hello forum members,
We want to separate our terraces from the neighbor, who without our consent poured a concrete base on the property line, about 17.5cm (7 inches) wide, and built his terrace there. Now it is basically possible to build a wall right on the boundary, with a maximum thickness of 17cm (6.7 inches).
The wall will be 180cm (71 inches) high and 3m (10 feet) long. It will be anchored to the house. I don’t have more details at the moment.
My questions:
Is the wall too thin at 17 or 17.5cm (6.7 or 7 inches)?
What do we need to consider? Alternatively, we could build a proper wall only on our property, or place it partly on the boundary but mostly on our land, using 24cm (9.5 inches) wide bricks. I have zero experience—does anyone have advice? The whole wall will be rendered white.
Is 180cm (71 inches) a sufficient height? I would appreciate any tips.
I will send pictures tomorrow. We have an end-of-terrace house and want to separate our terrace from the neighbor’s. Now he has already built his terrace and laid the foundation for the wall. The foundation is about 17cm (6.7 inches) wide and exactly on the property line, so it lies partly on his and partly on our property. The wall is going to be built on this foundation. What should be considered in this case? I will gladly share pictures tomorrow—it’s too dark now.
Kind regards,
Bauherrin123
We want to separate our terraces from the neighbor, who without our consent poured a concrete base on the property line, about 17.5cm (7 inches) wide, and built his terrace there. Now it is basically possible to build a wall right on the boundary, with a maximum thickness of 17cm (6.7 inches).
The wall will be 180cm (71 inches) high and 3m (10 feet) long. It will be anchored to the house. I don’t have more details at the moment.
My questions:
Is the wall too thin at 17 or 17.5cm (6.7 or 7 inches)?
What do we need to consider? Alternatively, we could build a proper wall only on our property, or place it partly on the boundary but mostly on our land, using 24cm (9.5 inches) wide bricks. I have zero experience—does anyone have advice? The whole wall will be rendered white.
Is 180cm (71 inches) a sufficient height? I would appreciate any tips.
I will send pictures tomorrow. We have an end-of-terrace house and want to separate our terrace from the neighbor’s. Now he has already built his terrace and laid the foundation for the wall. The foundation is about 17cm (6.7 inches) wide and exactly on the property line, so it lies partly on his and partly on our property. The wall is going to be built on this foundation. What should be considered in this case? I will gladly share pictures tomorrow—it’s too dark now.
Kind regards,
Bauherrin123
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Bauherrin12311 Jul 2025 09:14No, exactly not. The company that built his terrace also worked on our street, and it was a complete failure. The neighbor builds everything with a "just getting it done" attitude, as long as he’s the first to finish. Water pools on his terrace, water drips into his roof terrace, and he already has a boundary along the street — a 1m (3.3 ft) high wall, which actually collapsed, and it was about 15m (50 ft) long. That’s why I’m taking matters into my own hands now and want to be sure. What really matters when it comes to the foundation?
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nordanney11 Jul 2025 09:29Bauherrin123 schrieb:
What are the key factors when it comes to the foundation?You need to lay the foundation below the frost line, then backfill and compact the soil properly.What did the neighbor do?
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hanghaus202311 Jul 2025 11:24This requires careful planning, ideally together with the terrace roof. Hopefully, the neighbor’s concrete blocks are not partially on your property. Because you can’t use them, as in my opinion they are not suitable as the foundation for a wall.
Why build a wall? There are other options. For example, a side panel of the roof structure.
Why build a wall? There are other options. For example, a side panel of the roof structure.
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nordanney11 Jul 2025 11:28Bauherrin123 schrieb:
Now you can basically build the wall centered on the property line so that it is a maximum of 17cm (7 inches) thick.hanghaus2023 schrieb:
Hopefully, the neighbor’s formwork blocks aren’t partially on your property.Of course, they are positioned centered on the boundary line.Which is basically fine—provided everything is agreed upon in advance, so the future wall suits both parties and the foundation is properly constructed.
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hanghaus202311 Jul 2025 11:37nordanney schrieb:
Sure, it’s placed centrally on the boundary line.I have read that as well.If you have agreed on this with your neighbor (preferably in writing), it makes sense. Otherwise, it could lead to disputes later on, which I already suspect here.
nordanney wrote:
so that the future wall fits both parties and the foundation is correctly installed.This is exactly where the problem lies.W
wiltshire11 Jul 2025 12:03You have a communication issue with the potential for increasing emotional tension. This cannot be resolved through construction.
Technically:
A wall obviously requires a solid foundation.
Relying on what the neighbor built for the terrace framing without knowing the details would be careless.
@ypg gives a great tip: The wall does not necessarily have to be built equally on both properties.
Technically:
A wall obviously requires a solid foundation.
Relying on what the neighbor built for the terrace framing without knowing the details would be careless.
@ypg gives a great tip: The wall does not necessarily have to be built equally on both properties.
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