Hello everyone,
We are currently working on building our single-family house. The building application has been submitted, and we promptly received the first letter from the building authority stating:
Rainwater must generally be infiltrated or directed into a nearby open water body, as long as this is possible without excessive effort and damage (§ 48 b Abs. 3 WG-BW).
After a phone consultation with the building authority, we were told that rainwater is not allowed to be discharged into the sewer system due to water protection zone III. The proposed solution (if you can call it that, as they basically said “there’s no way around it”) is a cistern. Permeable paving was also mentioned for the driveway, although we’re not sure what that is for. There is no water body nearby, by the way.
We had actually considered a cistern for watering the garden but excluded it due to the cost. Now we are being forced to install one despite the financial strain, so I have a question for you.
There seem to be countless types of cisterns (according to Google). Can you tell me which type would suit our purpose and where it’s most important not to cut corners?
Kind regards
We are currently working on building our single-family house. The building application has been submitted, and we promptly received the first letter from the building authority stating:
Rainwater must generally be infiltrated or directed into a nearby open water body, as long as this is possible without excessive effort and damage (§ 48 b Abs. 3 WG-BW).
After a phone consultation with the building authority, we were told that rainwater is not allowed to be discharged into the sewer system due to water protection zone III. The proposed solution (if you can call it that, as they basically said “there’s no way around it”) is a cistern. Permeable paving was also mentioned for the driveway, although we’re not sure what that is for. There is no water body nearby, by the way.
We had actually considered a cistern for watering the garden but excluded it due to the cost. Now we are being forced to install one despite the financial strain, so I have a question for you.
There seem to be countless types of cisterns (according to Google). Can you tell me which type would suit our purpose and where it’s most important not to cut corners?
Kind regards
M
motorradsilke18 Mar 2022 09:43There was no inspection at all in our case, and no specific requirements regarding drainage either. They just said that infiltration must take place. No one specified how this should be done, and no one seemed to care. We simply perforated a few large barrels and buried them. We surrounded them with gravel and geotextile fabric, added some gravel inside, put the lid on, and that was it. This method worked for 15 years at our old house with a similar roof area, so it will work again now. During very heavy rain, the system sometimes overflows, but then the water just seeps into the garden. We have sandy soil typical for the region, so the water drains quickly.
I wanted to ask in advance how much documentation I need to provide. They referred me to some water authority to inquire there. I foolishly did that, but it was like trying to wake a sleeping dog.
We also have sandy soil typical of the Mark region. My wife is already planning to have several tons of topsoil delivered.
We also have sandy soil typical of the Mark region. My wife is already planning to have several tons of topsoil delivered.
guckuck2 schrieb:
An application with a sketch, showing roofs, paved areas, etc., is submitted beforehand in order to calculate the fees afterward. In our case, the fees were determined and invoiced directly with the permit approval.
Because of the relatively large sealed surface area, the calculated amount was something around 27.xx EUR. However, the minimum fee at the authority is still 200 EUR, which was charged accordingly. 🙂
TmMike_2 schrieb:
On the other hand, if fees or taxes have to be paid for sealed surfaces, these are logically checked – possibly by random sampling.If infiltration is done on your own property, hopefully there won’t be any more fees 🙂
Random inspections are also carried out by authorities nowadays based on maps or satellite images... to see if the areas roughly match the approved ones.
netuser schrieb:
If infiltration is done on your own property, hopefully there won’t be any more fees 🙂
Nowadays, the authorities also carry out spot checks based on maps or satellite images... to see if the areas roughly match the approved ones. For a few years now, they have been flying over with drones for spot checks.
To see if maybe a pool was built in the garden after all, etc. 😀
The modern parking enforcement officers, indeed.
Similar topics