JohnnyCooker
2022-05-03 13:51:53
- #1
Hello community,
I have already read some posts and tried to find a thread on our topic. Unfortunately, only related / similar things. Therefore, I would like to post my question myself.
We are currently planning / building the second half of a semi-detached house. The first semi-detached house, which has existed for 15 years, is inhabited by my parents-in-law.
Even though this seems a bit strange... The second half was already planned 17 years ago, but no one wanted it back then ;-)
The semi-detached house is about 140m from the railway. There are also some trees in between (see map in the attachment).
We have now received a requirement from the building authority to install a ventilation system. Due to the noise mapping of DB from 2017, 68 and 60 dB(A) are present at our southeast and southwest exterior facades. Accordingly, according to "Noise protection in urban planning" (Supplement 1 to DIN 18005 part 1), even at 45 dB with only partially open windows, undisturbed sleep is often not possible. Consequently, sleep disturbances can only be avoided if the window remains closed. However, to maintain hygienic conditions, a ventilation concept must exist. Since this ventilation concept, based on the previous finding, may not allow open windows at night, a ventilation system must be installed. That is the building permit.
Now to reality: My wife and the sister-in-law, who is 8 years younger, once lived for a time in the existing semi-detached house. All residents of the house closer to and facing the railway line have certainly never complained about train noise and described this requirement as ridiculous.
We currently live in a multi-family house which is only 35 m from the railway line and also find it very quiet to fall asleep with open windows and solely window rebate ventilation.
We would now be very reluctant to implement this measure and would like to save the not directly calculated 12-15 K EUR.
Does anyone have an idea how to formulate a reasonable objection to the building authority?
Do the "experience values" of the neighbors count here?
Thanks for your assessment and possibly suggestions.
I have already read some posts and tried to find a thread on our topic. Unfortunately, only related / similar things. Therefore, I would like to post my question myself.
We are currently planning / building the second half of a semi-detached house. The first semi-detached house, which has existed for 15 years, is inhabited by my parents-in-law.
Even though this seems a bit strange... The second half was already planned 17 years ago, but no one wanted it back then ;-)
The semi-detached house is about 140m from the railway. There are also some trees in between (see map in the attachment).
We have now received a requirement from the building authority to install a ventilation system. Due to the noise mapping of DB from 2017, 68 and 60 dB(A) are present at our southeast and southwest exterior facades. Accordingly, according to "Noise protection in urban planning" (Supplement 1 to DIN 18005 part 1), even at 45 dB with only partially open windows, undisturbed sleep is often not possible. Consequently, sleep disturbances can only be avoided if the window remains closed. However, to maintain hygienic conditions, a ventilation concept must exist. Since this ventilation concept, based on the previous finding, may not allow open windows at night, a ventilation system must be installed. That is the building permit.
Now to reality: My wife and the sister-in-law, who is 8 years younger, once lived for a time in the existing semi-detached house. All residents of the house closer to and facing the railway line have certainly never complained about train noise and described this requirement as ridiculous.
We currently live in a multi-family house which is only 35 m from the railway line and also find it very quiet to fall asleep with open windows and solely window rebate ventilation.
We would now be very reluctant to implement this measure and would like to save the not directly calculated 12-15 K EUR.
Does anyone have an idea how to formulate a reasonable objection to the building authority?
Do the "experience values" of the neighbors count here?
Thanks for your assessment and possibly suggestions.