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An interior inspection is a personal examination of a property’s interior by an appraiser, expert, prospective buyer, or real estate agent to gain a thorough understanding of the property’s condition, features, and quality. It is an indispensable part of any reputable real estate appraisal and every home-buying decision-making process. Appraisals and purchase decisions made solely on the basis of photos, floor plans, or online information carry significant risks.
For experts, the interior inspection is a prerequisite for a complete market value appraisal in accordance with the ImmoWertV. It allows for the recording of actual features (floor coverings, window types, bathrooms, heating systems), the identification of defects and damage (moisture damage, cracks, mold), the verification of floor plan data, and the assessment of the structural condition. Only an interior inspection allows one to distinguish between a well-maintained property and one in need of renovation-both can look deceptively similar in photos.
Appraisers distinguish between a full interior inspection (all rooms, basement, attic, technical systems) and a limited inspection (e.g., only an exterior inspection for a rented property where the tenant refuses access). Limited inspections increase the uncertainty of the valuation and are noted accordingly in the appraisal report.
For prospective buyers, the interior inspection is the most important source of information prior to purchase. We recommend paying particular attention to the following aspects during the inspection: signs of moisture on walls and ceilings (especially in bathrooms, basements, and north-facing areas), condition of windows and doors (seal, locking mechanism, glazing), age and condition of heating and plumbing systems (labels indicating year of construction, visible corrosion, odor), quality of electrical work (fuse box: screw-in fuses are outdated; check the GFCI circuit breaker), ceiling heights and lighting conditions, as well as the general condition of the floors and surfaces.
A second inspection-ideally with a building inspector or experienced tradesperson-is highly recommended before submitting a binding purchase offer. The cost of hiring an expert to accompany you (approx. 200-500 euros) is money well spent: an overlooked moisture damage issue or an outdated electrical system can easily result in renovation costs ten times that amount.
Experienced buyers look for details during the interior inspection that often escape the notice of laypeople: The smell upon entering the apartment indicates moisture, mold, or prolonged disuse. The quality of the transitions between flooring and walls reveals whether renovations were done carefully or hastily. The volume of street traffic with windows open and closed provides insight into the actual soundproofing. Fixtures and installations that the seller is not including in the sale should be explicitly addressed.
Pay special attention to the basement and attic: these are the most common places for hidden defects such as moisture damage, mold, materials containing hazardous substances (asbestos insulation in buildings constructed before 1980), and DIY work that was not performed properly. A flashlight is useful in the basement; in the attic, roof beams and insulation should be examined closely.
Virtual tours and 360-degree walkthroughs are valuable supplements for prospective buyers who are geographically distant or wish to make an initial shortlist. However, they do not replace an in-person interior viewing: odors, acoustic qualities (street noise, footfall noise), room temperature, and actual proportions cannot be captured virtually. We offer our clients both-professional virtual tours for initial screening and in-person viewings for an informed decision.
Sellers should present their property in the best possible light before an in-person viewing: Tidy up and clean thoroughly, fix minor defects (dripping faucets, sagging cabinet doors, broken light bulbs), ensure good lighting, and-where possible-enhance the property’s charm with flowers or the scent of fresh coffee. A first impression often determines whether a prospective buyer makes an offer or not.
We prepare our sellers for the viewing and personally accompany them to all appointments to answer questions competently and highlight the property’s strengths. At the same time, we recommend that buyers never rush viewings and take sufficient time to explore all rooms and areas.
No. The owner can refuse access. However, in the case of a court-ordered appraisal (e.g., foreclosure), the bailiff may grant access. If a seller refuses to allow the appraiser an interior inspection, the appraiser must note this in the appraisal report and, if necessary, apply deductions to account for the uncertainty.
Useful items include: a checklist for relevant aspects (condition, fixtures, defects), a tape measure to measure room sizes yourself, an affordable moisture meter, a flashlight for dark basement rooms, and, if necessary, a building inspector or experienced tradesperson for a second opinion. A smartphone camera and notepad help you capture your impressions.
At least two: an initial orientation visit and a second, detailed inspection-ideally with an expert or experienced tradesperson. During the second viewing, the basement, attic, and technical systems should also be thoroughly inspected. For properties with obvious renovation needs, we even recommend a third inspection together with the contractor who will be doing the work to obtain a reliable cost estimate.
Yes, viewings are possible in compliance with the applicable hygiene measures. We always coordinate viewing appointments with sufficient social distancing and-if requested by the seller-with face masks. Upon request, we also organize private or exclusive viewings without other interested parties.
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Important Disclaimer
The information, assessments, and legal notes in this real estate glossary serve solely as general orientation. Despite careful preparation, we assume no liability for the accuracy, completeness, or timeliness of the content. These contents do not replace individual legal or tax advice. We strongly recommend consulting a qualified attorney or tax advisor for specific matters.
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