1. Why a building may be missing
Three reasons, of which only one amounts to a breach, and telling them apart is the first step, because the solution differs. The other two are historical.
| Reason | What it is |
|---|---|
| The building is old and dates from a time when registration worked differently | a matter of correction |
| Data were lost or not carried over when earlier registers were replaced | a matter of correction |
| The building was erected without any procedure | a matter of legalisation, unauthorised construction |
The first two rows are resolved by submitting data. The third moves into legalisation, covered by the article on existing buildings, and that procedure is longer.
2. What to do and on what basis it is entered
To enter a missing building, a data submission notice must be submitted to the local authority. The building is entered in the building register on the basis of the last approved design.
This means the basis for entry is a document rather than the actual situation, where a document exists. Where no approved design exists, the situation becomes more complex and moves into legalisation, where the base data have to be created through measurement and evidence.
3. Why this is not merely a formality
Four consequences affect even those with no intention of building. They surface on a sale and in insurance.
| Consequence | For whom |
|---|---|
| Selling becomes harder, because the buyer checks the register | for the owner |
| The bank may not lend to the buyer where the documents are not in order | for the buyer, and therefore for the transaction |
| Insurance and later procedures rely on register data | for both |
| Every future work must start from the position recorded in the register | for the owner |
The second row is the most direct, because it concerns the financing of the transaction and therefore whether it happens at all. A missing register entry is thus not only the owner's problem but also the prospective buyer's: it carries forward until someone resolves it.
4. Why it goes unnoticed for so long
Two reasons explain why the problem stays invisible for years. Absence does not hinder everyday use.
The register gives no signal. A missing building simply is not displayed, and nobody who is not looking will notice; the public view has no column stating that something is absent.
Daily use is unaffected. A house can be lived in even where it officially does not exist, and nothing brings the matter to mind.
The problem therefore surfaces at an event: a sale, a loan, an inheritance or new construction work. All of these are bad moments to discover it, because they normally come with a deadline, and correcting data does not fit inside one.
5. Timing
Three observations about the duration add up to one conclusion. Correction takes longer than expected.
Correcting data takes time that cannot be compressed alongside a building design. Gathering the necessary documents can take longer than the procedure itself, particularly for old buildings whose documents are held in different places or missing altogether.
Correction should therefore be initiated as the first step, not once the project is already running and the designer is waiting for base data. Otherwise the whole project stalls.
Summary and four practical rules
A building may be missing from the register for three reasons, two of which are matters of correction and one of legalisation, and telling them apart determines everything that follows. Entry is made by submitting a data submission notice to the local authority, on the basis of the last approved design. Of the four consequences the most direct is that the bank may not lend to the buyer, which makes a missing entry the buyer's problem as well.
Four rules: check the register before any work, including when considering a purchase. Distinguish a missing entry from unauthorised construction, since the solutions differ. Initiate correction as the first step rather than alongside the project. Explain the consequences for sale and lending to the client, which is often a more persuasive argument than a procedural requirement.
This article offers professional orientation as at the date of verification. It does not replace the assessment of the local authority.