Pitched roof feasible with existing development plan? Experiences/Tips?

Hello,

in the course of our new building, we have now finished the floor plan. Originally, a gable roof was planned for us, but this week we drove through a new development area where there was a house with a shed roof. In short: love at first sight...

I have now looked up our development plan to see if a shed roof would even be allowed for us. Basically, it would be possible, but I don’t really understand the cryptic wording.

The development plan requires a double-sided eave height of 4.5m (or max 7m considering the slope on the back of the building) and a ridge height of 11m. Minus 40cm as a protective measure against medium-sized floods, I can therefore plan with just under 4.1m eave height towards the street and extend the shed roof up to 11m in height. The roof pitch can be freely chosen between 10 and 45 degrees. In principle, a shed roof would not be a problem. However, we only like a shed roof with a relatively flat roof pitch, because otherwise the ridge side would simply become too bulky for us.

Now to the special features: Our floor plan is 10.4m long and 9.5m wide, so it basically depends on a flat roof pitch so that it doesn’t end up looking like a block on the ridge side. Consequently, we would have a long roof slope on the eave side if we stayed at 4.1m eave height. However, the development plan states the following:

Die sich durch Pultdächer ergebenden Wandhöhen dürfen die festgesetzten Traufhöhen bis zu 4m überschreiten.

This is where I’m at a loss... Is this paragraph to be understood so that I can also go up to 4m higher in the area of the eave height, or is it only to be understood as 7m on the back + 4m = 11m ridge height?

Regards

It seems to me that the ridge of the shed roof should then only be 4m above the (actual) eaves height. With a building depth of 10.4 m, that would be a maximum roof pitch of 21°.

I am glad when a development plan actually likes genuine (= single-plane) shed roofs and does not just call broken gable roofs that.

An assessment based on paraphrased passages from the textual provisions is very difficult. The development plan seems to make very detailed provisions; perhaps there are also system sketches that clarify the different possibilities.

The development plan specifies a gutter height of 4.5m on both sides (or max 7m taking into account the slope on the rear side of the building) and a ridge height of 11m.

What remains unclear here are the reference points. Especially the note in parentheses makes no sense without them. Even without an excerpt from the drawing part, the imagination can distort the actual situation.
The sentence

The wall heights resulting from shed roofs may exceed the specified gutter heights by up to 4m.

taken on its own suggests that the maximum gutter heights applicable to gable roofs may be exceeded by 4m each. However, that would only make sense if the wall heights remained significantly below the ridge height, which would not be the case at 7m.

Does the change also fit with the other provisions (number of full floors, plot ratio/floor area ratio)?

If you want more reliable assessments here, please attach the full textual provisions and a meaningful excerpt from the plan as jpg files to your next post.

Right, I could have come up with the idea of basing it on the system sketch and the textual regulation myself... For the system sketch, the right case applies to my property. The part with the eaves and ridge heights in the regulation can be found on page 3.

This is more understandable. The eaves heights facing away from the street have a different reference point than the ridge and street-facing eaves heights. Your street-facing upper wall termination may therefore be a maximum of 8.5m above the finished access road, and the street-facing upper wall termination may be a maximum of 11m above ground level. This means that the height of your house would be significantly below the maximum possible height of a gable roof house, which also makes sense from an urban planning perspective.

That’s how I understood it as well. That would rule out the gable roof and a shed roof would be added to our house. That way, we would even have 2 full stories. Win-win situation ^^