
Check and document
Follow simple checks and guidance for each area, then add more details where needed about defects, repairs or anything that remains unclear.
Guided hidden-defect checklist for apartments
kode guides you step by step through the apartment, building and shared systems, repairs, and relevant issues. The information you document is turned into a structured disclosure PDF for the sale.
Early-access price
€25
Lower introductory price for kode's first release.
Currently designed for apartments. Private-house-specific guidance is planned for a later release.

How does kode reduce hidden-defect risk?
No checklist, professional inspection, or disclosure document can guarantee that a buyer will never make a claim after the sale. To prove the claim is unfounded, it's important to document what the buyer knew about the property before purchasing and what was agreed upon in the sale.
Instead of relying on what you remember saying during a viewing, the PDF brings the defects, repairs and other relevant information you recorded into one structured document.
Share relevant information clearly so the buyer can understand the property’s condition before deciding to buy.
Use the document to bring relevant defects and information to the notary so they can be reflected appropriately in the sales agreement.
What does the checklist actually look like?
Each checkpoint explains what to look for, gives you practical guidance and helps you record what you know for the final disclosure document.

Follow simple checks and guidance for each area, then add more details where needed about defects, repairs or anything that remains unclear.

Your answers are organised into a structured report that you can share with the buyer and provide to the notary when preparing the sales agreement.
The full checklist applies the same guided approach across the apartment, building, shared systems, previous repairs and other relevant information.
Why trust the checklist?
kode combines practical construction knowledge with research into the questions and concerns property sellers actually face. The checklist is designed to give ordinary owners clear, useful guidance without pretending to replace professional expertise.
The checklist questions and practical checks were developed with input from construction experts to help identify areas that may deserve attention before a sale.
We have spoken with property sellers, buyers and professionals to understand where sellers feel uncertain, what they tend to overlook and what information is most useful before a sale.
The guidance explains what to look for, gives practical examples and simple checks, and helps you recognise when something may need closer attention or specialist input.
What’s included in early access?
kode is starting with the core product: a guided way to check your apartment, document what you know and create a clear disclosure PDF for the sale. The early-access price reflects a few limitations in this first release while we continue improving the experience.
Everything you need to complete the apartment checklist and create your disclosure document is available today.
In a regular browser, your progress is saved only in the current tab. In an installed standalone web app, it remains in that app until workspace access ends. Photos are not saved through a refresh and must be added again before finalising the report. Progress does not transfer to another tab, browser, app installation or device.
We are improving the checklist based on what we learn from early users.
Future improvements are planned but may change as we continue developing kode.
kode helps you review, document and disclose information about your property. It cannot guarantee that every defect will be found or that no claim can arise after the sale, and it does not replace a professional inspection or legal advice.
Still have questions?
Find answers to common questions about the checklist, professional help, early access and using your disclosure document.
No. No checklist, inspection or disclosure document can guarantee that a buyer will never make a claim after the sale. kode helps you reduce uncertainty by systematically reviewing the property, documenting relevant information and creating a clear record that can be disclosed to the buyer. This helps prevent a claim or prove that it is unfounded, as the buyer knew about the property’s condition before the sale and the information was captured in the sales agreement.
You can provide the document to the buyer and the notary before the sale. The notary can use the relevant information when preparing the sales agreement. Depending on the amount and type of information, it may be included directly in the agreement or added as an annex. The notary will advise you on the most appropriate way to document it for your transaction.
The checklist and its practical checks were developed with input from a construction expert and informed by our research with property sellers and other professionals. The aim is to help ordinary property owners review the apartment systematically without requiring technical knowledge.
The checklist does not replace a professional inspection. If something needs a more detailed technical assessment, the guidance can help you recognise where specialist input may be useful.
You do not need to document every small scratch or everyday imperfection. Focus on information that could reasonably matter to the buyer, such as known defects, recurring problems, significant repairs, uncertainties or other circumstances that could affect the property’s use, condition or future costs.
Describe what you actually know. If you do not know the cause of a problem, say so rather than guessing. Clear and specific information is more useful than simply adding as much text as possible.
What defects and property information should a seller disclose to the buyer?
The checklist is designed to help you find and understand the information you may need, with guidance on where to look and what to check. If you still do not know the answer, you can leave the point unresolved rather than guess. The more relevant information you can clarify and disclose to the buyer, the clearer the record of what they knew before the sale. If a question may be important, the checklist helps you recognise when it is worth looking into further or asking a relevant specialist.
No. kode is designed as a guided self-review that you complete yourself. It takes you through the apartment, building and relevant systems step by step, explains what to look for and provides simple checks where appropriate.
If you notice something that cannot be confidently assessed without specialist knowledge, the checklist can help highlight where additional professional help may make sense.
Not automatically. Different professionals solve different problems. A technical specialist can investigate a condition you cannot assess yourself, while legal advice may be useful for significant or complex legal questions. A broker can help manage the wider selling process.
kode helps you first understand what you know, what may need attention and where specialist help may actually be useful.
If you already have the relevant information at hand, completing the checklist typically takes around one hour. The exact time depends on the size of your apartment, how much detail you add and whether you need to carry out checks or gather additional information.
We recommend first going through the checklist to see what information is requested. You can then collect any missing details from documents, the apartment association or other sources before completing the checklist and generating your final report.
Partly. In a regular browser, your answers and progress survive a refresh in the current tab, but closing that tab ends the draft. In an installed standalone web app, the draft remains in that app until workspace access ends. Photos are not saved and must be added again before finalising the report. Progress does not transfer to another tab, browser, app installation or device.
Saving progress to your account and continuing across devices is planned for a future version.
Your cancellation and refund rights depend on whether you have already started using the checklist. Because kode provides access to a digital product immediately after purchase, specific withdrawal rules apply. We explain these clearly before payment and in our Terms of Use. If something does not work as described, contact us and we will help resolve the issue.
Ready to get started?
Use kode’s guided checklist to review your apartment step by step, document relevant issues and create a clear disclosure PDF for the sale.
Early-access price: €25