How would you model an existing building that is vertically tilted

[rosendo.casarrubias.7]

What workflow recommendations will you have for modeling an existing building that is not vertically straight, meaning their level constraints are not horizontal, I have seen it's not possible to tilt revit links, so modeling the building straight and them rotating it as a link is not feasible, how would you go about this problem? Situation like this are very common within my city, so I would like to have a defined way to tackle this problem

[vitorbortoncello]

Export your model to DWG 3D. Create new family using Metric Generic Model and import CAD. In Family Category choose Casework, and set the family to be work plane based. Save your family and Load Into Project. Draw a sloped floor and change your work plane by selecting the floor plane. Place component to place your building family and it should be placed tilted as desired, and you can control the angle by adjusting the floor angle.

Hope it helps

[Simon_Weel]

Maybe there's a trick to rotate the link with Dynamo?

[rosendo.casarrubias.7]

I don't like this solution because what I would like is to model this vertically tilted existing building with full BIM functionality, meaning I can tweak with wall types, wall layers, floor types, etc, also being able to schedule elements from existing phase and so on and so on. I'm looking for a workflow to model this kind of case entirely within revit 

[mhiserZFHXS]

Are all of the levels within the building parallel? I'm assuming the tilt is just due to uneven settling. Why not just model is as if it were level and then annotate the ground plane so its angled in elevations/sections? I feel like this would be far easier on both your end as well as reading the drawings for whoever is actually working on the building.

Also, if its very common in your city, has someone else already come up with a convention for how to work with this in Revit? Or can the ruling jurisdiction give you some advice?

[rosendo.casarrubias.7]

what do you mean with annotating the ground plane?? the complexity of this scenario is that many times working this kind of projects, is because you're doing a new intervention preserving some of the existing conditions, but most of the time, the new intervention is built leveled and with correct verticality, so the intervention relies on creating adaptations within the existing building to match this levels and verticality, so ideally you have the tilted building to create the interventions leveled as they would work on real life scenario. 

My city didn't has conventions yet regarding this haha, project standards are a mess over here and BIM is not yet standard for the building industry

[vitorbortoncello]

To achieve consistent and fully functional BIM with angled columns, walls, and floors, you must model it as it exists in real life.