Attic expansion: Definition of full floor and dormer width up to the neighbor

  • Erstellt am 2019-05-09 23:13:27

Escroda

2019-05-10 11:45:43
  • #1
One would have to know all the details of the construction project. With the loss of subordination, your architect is probably right.

It is not stated anywhere like that either. It has to be evaluated on a case-by-case basis. It would be unusual if the building authority was more lenient than the architect. You can ask them yourself.
I cannot understand the building encumbrance like that, at least not any setback surface encumbrance. It is possible that the gable wall has to be secured as a common component if you need it as support for the dormer. Then the neighbor would naturally have to agree.
If your architect is local, he will know how "the people at the office" usually act and avoid known problems. So far, you have not mentioned anything that makes me doubt his competence. Trust his advice or give the forum more information.
If you keep the usual 1.25m distance from the neighbor required before the new building regulations, everyone involved will probably feel safer.
 

Tassimat

2019-05-12 11:29:43
  • #2


With your help, I was able to convince the architect to work towards my desired solution. Yes, he is competent and also knows the office and the local peculiarities. Nevertheless, my preferred solution was not his focus because he was convinced that easements were absolutely necessary.

The current status is that the shared gable wall is apparently still a problem since the city supposedly demands an easement in such cases, even though it would theoretically not be necessary. On Monday, I will inquire again at the city’s building service whether I may simply build the dormer right up to the shared gable wall to avoid the easement. Let's see what they think about it.


I know I haven’t posted details, but with the floor plan and stairwell, only a distance close to 0m or from 2m makes sense.
 

11ant

2019-05-12 15:00:44
  • #3
From my point of view, the distance of the last window from the fire wall is the critical point.

You say "Gaube" – do you mean that literally or are you using the term (as unfortunately popular) here also for a dormer?
(a Gaube recesses behind the eaves – i.e. typically stands on a knee wall* – while a dormer continues the facade without a setback, roughly put in layman's terms).
*) Knee wall = roughly the "inner knee wall," which recesses behind the sole plate, as I assume according to the mentioned year of construction, but of course do not know for sure
 

Tassimat

2019-05-12 20:58:04
  • #4
Yes, it is about a dormer. It is not flush with the house wall at the back of the window front, but set back.

The last window is even supposed to be about 1.25m away from the firewall. A shower is to be installed in the windowless corner. From a fire protection perspective, it should therefore be fine. However, I can ask the firefighter at the construction service again tomorrow.
 

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