Buying a property is a decision you will live with every day - for your whole life.

Buying an apartment or a house can be the best-or the worst-decision of your life. It’s not just buying walls: it affects your finances, health, peace of mind and quality of life for years. Most expensive issues are invisible at first glance-and when you finally notice them, it’s often too late.

Think rationally - don’t get carried away

When buying a property, emotions can easily take over. Nice details distract you while potential problems stay hidden. This checklist gives you a rational framework to make a clear decision and avoid expensive oversights.

Protect your money

Costly oversights can lead to major unplanned expenses for repairs, remediation and renovations-plus legal fees and long, uncertain court proceedings.

Protect your health

Moisture, mould and poor insulation can degrade indoor air quality over time and may seriously affect your health and everyday comfort.

Protect your peace of mind

Property issues bring long-term stress, uncertainty and tension, and they often cause unnecessary conflict and strained relationships.

Moisture & structure

Moisture is a common-yet often hidden-issue that can lead to expensive remediation. Temporary fixes may conceal the symptoms, but the real problem often shows up only after purchase.

Check for moisture everywhere

Pay special attention to room corners and exterior walls. Check behind wardrobes and furniture where moisture often hides.

Pay attention to smells

Is the smell masked with air fresheners? It’s suspicious if only part of a wall is freshly painted without a clear reason.

Prefer viewing in winter or during rainy periods

Moisture problems are easiest to spot then. Photograph suspicious areas as evidence and ask for key seller statements to be written down.

Check flat roof, terraces, insulation

Waterproofing, drains and repair history are critical. Ask about insulation and request written confirmation of construction details-avoid hearsay.

Paperwork

This is a checklist, not legal advice. The goal is to help you know what to verify and when to involve a professional. Anything that cannot be checked non-invasively should be clearly written into the contract.

Check the land registry record

Ownership, shares, liens and annotations. If anything is unclear, verify in the land registry or with a professional.

Compare paperwork vs. reality

Measure key areas and compare them with the seller’s claims. Any mismatch is a signal for extra caution.

Check permits and documents

Administrative and energy documentation (if available). The aim is to spot anything that could later block renting, financing or resale.

Get it in writing in the contract

Anything that cannot be verified non-invasively (moisture, utilities, floor area, parking, ownership of parts) should be clearly written down.

Utilities - hidden costs

Utilities are the “heart” of a property. Problems often appear only after you move in. Ask what’s new, what’s old, and request proof whenever possible.

Electrical system

Breakers/fuses, outlets and overall condition. Ask when it was last updated and whether there are test certificates/invoices.

Plumbing

Pipes in the bathroom and kitchen-what’s new and what’s old? Check water pressure and drains, and look for signs of leaks.

Heating and cooling

Type of heating, condition of radiators/AC units and realistic running costs. Ask for invoices where possible.

Bills and documentation

Ask for electricity and heating bills. High costs can indicate poor insulation or hidden problems.

Location & surroundings

Visit the location at different times of day and on weekends. Some issues become obvious only when people commute or return home.

Noise level (day & night)

Promet, lokali, susjedi, pruga. Ne procjenjuj samo u terminu razgledavanja.

Parking - check at real times

Come in the evening or on the weekend. Also check logistics: deliveries, emergency access, fire trucks and bulky waste pickup.

Everyday accessibility

Grocery stores, schools, kindergartens, public transport and healthcare-check real distances and daily routines.

Sunlight and daylight

Check the orientation and whether nearby buildings block daylight-it affects comfort and moisture risk.

Costly mistakes buyers made

These are real situations (details adjusted for privacy). Quotes are summaries-click “Read more” for details.

“Kupnja preko agencije, a okućnica manja nego na papiru. Kasnije je otkrila da je dio vrta godinama bio preuzet.”

- Kupac, Zadar

Pročitaj više

Kupnja kuće išla je preko agencije. Dokumentacija je izgledala uredno, a na vlasničkom listu bila je navedena određena kvadratura okućnice i vrta. Budući da je sve išlo preko agencije, kupac je očekivao da su podaci točni i provjereni. Zbog toga nije dodatno mjerila cijeli vrt niti provjeravala stvarno stanje na terenu. Povjerenje je bilo temeljeno na papirima i posrednicima. Nakon kupnje i potpisivanja ugovora, s vremenom je postalo jasno da stvarna površina vrta ne odgovara onoj navedenoj u vlasničkoj dokumentaciji. Dio okućnice zapravo je godinama ranije preuzela susjeda, što se na terenu već dugo smatralo “normalnim stanjem”, iako nikada nije bilo pravno riješeno. Kupac je tako platio veću cijenu nekretnine, računajući na kvadraturu koja u stvarnosti nije postojala. Iako je imala pravnu osnovu za spor, odlučila se ne ulaziti u sudski postupak — tek je kupila kuću, financijski se iscrpila i nije imala ni vremena ni sredstava za dugotrajno suđenje s neizvjesnim ishodom. Osjećaj koji je ostao bio je gorak: svjesnost da je platila nešto što zapravo nikada nije dobila, te da se problem mogao izbjeći jednostavnom provjerom stvarnog stanja prije kupnje.

“The apartment looked perfect, but a conversation with a neighbor revealed a past flood and the risk of wooden beams. We walked away the day before signing.”

- Buyer, Zagreb

The apartment seemed ideal: freshly renovated, nicely furnished, priced below similar listings. The seller insisted everything was fine. The day before signing, the buyer researched further and learned about the risk of wooden inter-floor structures in older buildings. He remembered the advice: talk to the neighbors. He visited the downstairs neighbor-unannounced-and only then found out there had been a serious leak and firefighters had intervened. He backed out at the last moment, aware that structural remediation would be complex, expensive and potentially impossible without consent from other owners.

“A ‘once-in-a-lifetime deal’ with pressure and FOMO. A last-minute paperwork check prevented us from buying an illegal extension.”

- Buyer, coast

A property near the sea looked like an incredible opportunity. The seller kept emphasizing high interest and creating urgency. At the last moment, the buyer double-checked the documentation and realized there were unclear issues around extensions and legality-something that could later block renting and resale. He was a step away from signing, but walked away in time.

“The house bought in summer seemed flawless. The first autumn rains revealed moisture, poor insulation and a flat-roof problem.”

- Buyer, Zagreb area

The house was purchased during a dry period and seemed perfect. With the first autumn rains, signs of moisture, black mold and insulation issues appeared. It later turned out the flat roof had been poorly executed and waterproofing was inadequate. The buyer considered a dispute, but without precise contractual guarantees and solid evidence, the outcome was uncertain.

Detailed checklist (PDF) 29 €9 €

An extended version with more explanations, a red-flags section, real-world examples and clear guidance on what must be written into the contract.

What you get

A detailed checklist by rooms and categories
Examples of “red flags” and common tricks
A reminder of what must be in writing in the contract

Buy the PDF (€9)secure payment • instant access

Schedule a property walk-through

This service includes an informational walk-through, a visual inspection of accessible parts of the property and advisory feedback on observed condition and potential risks-without an official valuation or expert report. The team includes professionals from civil and mechanical engineering.

Contact

For quick scheduling, contact us by phone or email.

Phone

095 786 1423

casawise.book@gmail.com

Our mission

Our mission is to guide you toward a careful, thoughtful and rational property purchase-so you don’t end up with a 30‑year loan plus unexpected renovation and remediation costs. We help you notice issues that are easy to miss when emotions and pressure take over.