Professions
Floor plans for developers
Off-plan sales sell something that does not yet exist. The floor plan is therefore not an accessory but the product: buyers commit six figures on the strength of a drawing and are entitled to expect that drawing to be correct.
That creates two demands at once. The plan has to sell, so it must be clear and attractive. And it has to hold up, because the area figure travels into the purchase contract and the ownership schedule.
Separating units cleanly
Create one plan per storey and identify every unit unambiguously. For sales, also produce the extract of the individual home so prospects see their unit rather than the whole building.
Common areas such as stairwells, lifts, cycle stores and plant rooms should be drawn but allocated to no unit. Keeping that separation from the start saves a correction round in the ownership documentation.
- One plan per storey, one extract per unit
- Draw common areas but track them separately
- Document living area with its factors
- Save each revision with a date before anything changes
Areas that survive the contract
Keep the living area per unit with its derivation: raw area per room, factor applied, total. For loft units and balconies that transparency is not a weakness but protection against later claims for reduction.
Pay particular attention to terraces, loggias and unheated conservatories. They count only in part under the German rules, and those are precisely the positions that generate disputes after handover.
Selling without a finished building
While nothing stands, there are no photographs. A spatial view fills that gap and turns a flat drawing into an impression. For sales material and exhibitions it is often the single most effective addition.
Keep the drawings current when construction changes. A sales team working from a superseded revision sells conditions that are no longer being built — and creates exactly the conflicts that make handover expensive.
Frequently asked questions
How should I state living areas in a new build?
With a derivation: raw area per room, the factor applied under the German regulation, total per unit. Terraces, loggias and unheated conservatories count only in part.
Do I need a separate plan per home?
For sales, yes — buyers want to see their unit. For the construction file the storey plan remains the basis; both come from the same project.
How do I handle design changes during construction?
Save the previous revision as a dated file and update the plan. Selling from a superseded revision markets conditions that are no longer being built.