A weak property brochure is the most common reason why a property remains on the market too long or is sold below its value. Missing mandatory information, embellished descriptions or an unsuccessful series of photos deter serious prospective buyers even before the viewing – and false information can lead to a reduction in price, damages or even rescission after the purchase. We show you the typical brochure mistakes made by private sellers, why each one costs buyers and how to avoid them.
Why a faulty brochure costs real money
The brochure is your calling card on the market. Within a few seconds, it determines whether a prospective buyer keeps reading or clicks away. Anyone who makes mistakes here loses enquiries before the first viewing has even taken place – and an offer that has been advertised for an unusually long time is quickly regarded by buyers as a “shelf-warmer”, which further depresses the achievable price.
At the same time, the brochure is more than advertising. Information you provide in it may later become part of the contractually owed condition of the property (§ 434 BGB). If reality differs from your assurances, warranty claims may arise – in some circumstances even if the purchase agreement contains an exclusion of liability. A good brochure must therefore achieve two things: appear attractive and be legally sound.
The most common brochure mistakes made by private sellers
Mistake 1: Missing or incomplete mandatory information
The classic formal mistake concerns the energy performance certificate. If a valid energy performance certificate exists, the property advertisement – and therefore the brochure – must already include certain values from it (§ 87 GEG): the type of certificate (energy demand or energy consumption certificate), the final energy demand or consumption, the main energy source used for heating, and, for residential buildings, the year of construction and the energy efficiency class.
This obligation expressly also applies to private sellers, not just estate agents. If the information is missing, this constitutes an administrative offence that may be punished with a fine of up to 10,000 euros (§ 108 GEG). In addition, a brochure without energy figures appears unprofessional to informed buyers and provokes unnecessary questions.
Mistake 2: Too few, poor-quality or incorrectly ordered photos
Images sell properties—or prevent their sale. Common mistakes include dark cellphone photos, crooked perspectives, untidy rooms, and a far too small selection. The wrong order is just as costly: Whoever opens the image gallery with the basement corridor or bathroom gives away the crucial first impression.
Instead, lead with the strongest image—usually a bright exterior view or the most representative living room—and use the sequence to tell a logical tour. If, on the other hand, there is no photo at all of the bathroom, kitchen, or façade, prospective buyers suspect that something is being concealed here.
Mistake 3: Missing floor plan and incomplete key details
For many buyers, an exposé without a floor plan is an exclusion criterion. The floor plan answers questions about the layout, room arrangement, and conversion options before they are even asked. Equally important are complete key details: living and usable floor area, plot size, year of construction, number of rooms, floor, date available for occupancy, and—in the case of condominiums—the service charge. Every omission costs you inquiries from prospective buyers who would rather turn directly to a complete listing.
Mistake 4: Exaggerations and “Statements Without Any Basis"
“Potential for adding two additional rooms,” “quiet location,” “high-quality renovation”—flowery wording raises expectations that the viewing often disappoints. This is not only frustrating but can also become legally dangerous. If you assert characteristics for which you have no reliable basis whatsoever (such as the possibility of conversion that has never been examined under building law), the courts refer to this as “statements without any basis.” If you knowingly accept that your statement could be false, this may constitute fraudulent misrepresentation.
Therefore, stick to verifiable facts. Use appealing but honest wording, and clearly identify assessments as such.
Mistake 5: Incorrect living-area information
The living area is the most sensitive numerical value in an exposé because buyers often calculate the purchase price directly per square meter. According to the Federal Court of Justice’s established case law: If the actual living area is more than ten percent below the figure stated in the exposé, this constitutes a material defect that triggers warranty rights such as a reduction in the purchase price—even in the case of an approximate figure.
Therefore, do not adopt floor-area figures from old documents without checking them. Recalculate them using a recognized method (generally under the Residential Floor Area Ordinance) and point out when different calculations exist.
Mistake 6: Concealed defects
The most costly mistake is concealing known defects – such as dampness in the basement, a dilapidated roof structure or damage that is merely disguised for the viewing. A customary exclusion of liability in the purchase agreement does not protect you here: You cannot invoke such an exclusion insofar as you have fraudulently concealed a defect (§ 444 German Civil Code).
You do not have to list every scratch, but you must provide information about circumstances that are demonstrably material to the purchase decision and that the buyer cannot readily identify himself or herself. Anyone who deals openly with known weaknesses not only prevents disputes, but also appears more credible.
Mistake 7: Unengaging description and weak opening
A mere list of figures without a common thread does not sell. Nor does a generic opening such as “Here we are offering you a property.” Mention the strongest selling point in the first sentence – the location, layout or condition – and then describe specifically what living there feels like. At the same time, avoid walls of text: Short paragraphs and a clear structure are read to the end significantly more often.
Legal pitfalls at a glance
Three sources of error carry the greatest legal risk and should therefore be handled with particular care:
- Mandatory information under the GEG: If the energy performance figures are missing despite an energy certificate being available, fines and warnings under competition law may follow.
- Incorrect statements about characteristics: The living space, year of construction, features or condition stated in the brochure may become the contractually owed characteristics. If the property differs, a reduction in price or damages may be possible.
- Fraudulently concealed defects: Anyone who intentionally deceives loses the protection of the exclusion of liability and, in extreme cases, risks reversal of the entire purchase.
The common denominator: Honesty and completeness in the brochure are not merely good style, but the best protection against subsequent claims.
Advantages and disadvantages of an embellished brochure
Many sellers wonder whether “prettifying” the details might nevertheless be worthwhile. Weigh both sides objectively:
- Perceived advantage – more inquiries: An overly positive brochure generates more clicks and Viewing appointments.
- Disadvantage – disappointed prospects: Anyone who finds the opposite on site will drop out. You invest time in viewings that are hopeless from the outset.
- Disadvantage – price negotiation from a defensive position: If the buyer only discovers the discrepancy at a late stage, they use it as leverage for a substantial price reduction.
- Disadvantage – legal liability: False or withheld information can trigger a reduction in price, damages or reversal of the transaction – a risk that outweighs any short-term effect.
Ultimately, a glossed-up property brochure almost always costs more than it brings in.
FAQ on property brochure errors
Which details are legally mandatory in the property brochure?
If an energy certificate is available, the key figures from Section 87 GEG must already appear in the advertisement: type of certificate, final energy demand or consumption, primary energy source and – for residential buildings – year of construction and energy efficiency class. In addition, the following applies: Whatever you state must be accurate.
Do I have to point out defects in the property brochure?
You do not have to mention every minor defect, but you must disclose significant defects that are clearly relevant to the purchase decision and that the buyer cannot identify themselves. If you fraudulently conceal such defects, a contractual exclusion of liability under Section 444 BGB will not help you.
How accurate does the stated living area have to be?
As accurate as possible. If the actual area is more than ten percent less than the figure stated in the property brochure, this constitutes a defect under case law. Calculate the area using a recognized method and do not adopt unsubstantiated historical figures.
May I describe my property positively in the property brochure?
Yes. Promotional, appealing language is permitted and sensible. The boundary is crossed where you assert specific characteristics for which there is no basis. Clearly distinguish between verifiable facts and personal assessments.
What happens if mandatory information is missing from the property brochure?
If the energy figures are missing despite an energy certificate being available, this constitutes an administrative offense punishable by a fine of up to 10,000 euros. In addition, you risk warnings under competition law and a loss of trust among prospects.
Conclusion: Honesty and completeness sell best
Most property brochure errors have a common cause: the attempt to present the property as better than it is – or to omit important information for the sake of convenience. Both come back to haunt you. Complete mandatory information, verified figures, good photos in a sensible order, and an honest, specific description not only bring you more suitable prospects, but also protect you from claims after the purchase. Anyone who prepares their property brochure carefully sells faster, at a better price, and with significantly less risk.