The desired house lies on one parcel, the access on a second and the planned pipeline possibly on a third. A combined sketch can show this clearly. However, it must not create the impression that all areas thereby have the same legal or structural function. For the first planning meeting you need a coherent description with clearly separated sub-areas.
First the project, then the list of parcel numbers
Our editorial recommendation: Describe what is to be built and used. Parking spaces, drainage, access, garden and construction site access can belong to the house. First draw these functions as separate areas. Afterwards assign them to the affected parcels. This makes it obvious if a necessary path lies outside the area considered so far.
Use the cadastral municipality and parcel number for each parcel. The BEV-Katasterservice shows such identification and factual data as well as, among other things, area and Einlagezahl; owner data are not displayed there. [BEV] A shared colour in your working sketch is therefore not proof of identical ownership relations or of a completed consolidation.
Keep overlays visible
Take a comprehensible plan status as a basis and indicate what comes from an official representation and what you have added yourself. An approximate building sketch remains an idea. Unresolved boundary positions, widths or pipeline routes should be marked as questions, rather than being shifted to fit the desired plan.
A functional line per sub-area is sensible: planned use, required connection, evidence available and responsible clarification. For the house this concerns, for example, the building; for the access the actually intended entrance; for connections the planned route. These lines form different review tasks, even if they belong to the same project.
Separate proof of rights and planning
Have the affected ownership and usage rights assessed on the basis of suitable documents. Clarify with the planning professional and the locally competent building authority which parcels the concrete project includes and which regional legal requirements apply. The article does not decide whether a consolidation is necessary, possible or has already been carried out.
Explicitly ask about the effect of an open sub-area: if the intended access is unresolved, the house design may be based on a condition not yet secured. That is a targeted follow-up question and not an assertion that the project is generally impossible.
Example: The parking space does not belong to the building plot
A family is offered two neighbouring parcels. The draft already shows the parking space next to them. In the documents it emerges that this area belongs to a third parcel. The family does not simply remove it from the list of questions. They have it checked whether and under what conditions that area would be available at all and what alternative exists on the offered parcels.
Prepare a robust first meeting
Pass on plan status, parcel allocation and open connections together. Request an answer for each unresolved function, not just a generic “fits”. Changes to access or building will then be updated on all affected sub-areas. The result of this preparation is a project scope that can be examined. Approval, boundary determination and contract drafting remain separate professional steps.