From Uncertainty to Documentation: A Technical Audit of a 17M CZK Family Home
New build, approved 2021, Energy Rating B, asking 16,990,000 CZK. Our technical audit identified 5 critical deviations from building standards — providing the buyer with a documented baseline for price renegotiation.
Book a technical consultationAt a Glance
Property type
5+kk Independent Villa, 240 m² living area
Plot / Garage
1,005 m² plot · 43 m² integrated garage
Year of completion
Kolaudace 2021 · Energy Rating B
Listed price
16,990,000 CZK
Recommended remediation
~320,000 CZK
Our client was purchasing a five-bedroom villa in Velké Popovice – Brtnice, Prague-East District. Completed in 2021, rated Energy Class B, and listed at 16,990,000 CZK, the property looked like a straightforward acquisition. They commissioned a TUTEL pre-purchase inspection to have an independent technical baseline before signing. What followed was a structured review that gave them clear negotiating leverage — and saved them from inheriting several unresolved technical questions.
Roof — Missing Insulation Layer, Sheathing & Vapour Barrier
Observations
Inspection of the roof structure revealed that the thermal insulation layer was incomplete: sheathing (záklop) and vapour barrier (parozábrana) were either absent or only partially installed across sections of the roof plane.
What this means
Without a continuous vapour barrier, warm indoor air can migrate into the roof structure, condense, and gradually degrade timber over time — even in a 2021 build. This is a relatively common omission in rushed completions. Recommended action: supplement insulation, install sheathing and vapour barrier across the full roof area. Estimated cost: 160,000–180,000 CZK.
Roof Penetrations — Sealing Around Chimney & Plumbing Vent
Observations
Two roof penetrations were identified: the chimney stack and the plumbing soil vent. The sealing and connection details around both penetrations were not fully verifiable from below and require a close-up check for tightness.
What this means
Penetration points are statistically the most common source of roof leaks. Even minor sealing deficiencies allow water ingress during heavy rain or freeze-thaw cycles. Recommended action: engage a qualified roofer to inspect and reseal both penetration connections from the exterior. Estimated cost: 20,000–30,000 CZK.
Facade — Incomplete Socle Finishing at Base Edge
Observations
The socle zone — the transition between the facade cladding and the ground — showed incomplete finishing along the lower edge. The bottom termination of the facade system was not properly closed off.
What this means
An open socle edge allows water to run behind the insulation and facade system, potentially causing localised moisture damage to the base of the thermal envelope over time. Recommended action: correct the socle termination along the full perimeter. Estimated cost: 30,000–40,000 CZK.
Halfway through — worth a pause.
Buying a villa near Prague? Here's what a 2021 completion can still hide.
This property was new, Energy-B rated, and well-presented. Yet our inspection flagged over 320,000 CZK in recommended remediation — plus four mechanical systems the seller had never demonstrated. A TUTEL pre-purchase inspection turns uncertainty into a documented negotiating position.
Book a Pre-Purchase Inspection2nd Floor Cracks — Origin and Progression Undocumented
Observations
Cracks were observed on the 2nd floor (2.NP). Their origin, age, and whether they are still active (growing) were not disclosed by the seller. We recommended the buyer formally ask the seller when the cracks appeared and whether any progression has been observed.
What this means
Cracks in a 2021 build can result from normal shrinkage settlement (cosmetic), or from structural movement. Without documentation of their origin, a buyer cannot assess the risk. If the seller cannot provide this, an independent structural survey is advisable before exchange. Estimated cost of survey: 15,000–25,000 CZK.
Mechanical Systems — Functionality Unverified at Time of Inspection
Observations
Four mechanical systems could not be fully tested during the inspection: (1) bathroom and WC ventilation fans — operation not confirmed; (2) underground retention tank and garden irrigation system — controls, functionality, and exact position on plot not demonstrated; (3) terrace pergola — motorised controls not tested; (4) swimming pool underground pipework connection route — not documented, relevant for any future pipe replacement.
What this means
For a property at this price point, all installed systems should be demonstrated to be operational at handover. The buyer should request a formal system walkthrough with the seller prior to signing, with each item verified and documented. Any non-functioning system should be repaired or credited at seller's cost.
Summary
Inspection Summary
What the listing presented vs. what our inspection documented
| # | Listing Impression | Inspection Finding |
|---|---|---|
| Modern roof, completed 2021 | Incomplete insulation — missing sheathing and vapour barrier | |
| Clean roof, no visible issues | Chimney and soil vent penetration sealing unverified | |
| Well-finished contemporary facade | Socle base edge not properly closed off | |
| No structural concerns mentioned | 2nd floor cracks present — origin and progression undisclosed | |
| Full equipment: pool, pergola, irrigation | None of these systems were demonstrated as operational | |
| Total Recommended Remediation | ~320,000 CZK | |
Outcome
In a competitive market with multiple offers on the table, our client did not walk away — they bought with full clarity. They knew exactly what work lay ahead, had a realistic budget for it, and faced no unpleasant surprises after handover. That is the real value of an independent inspection today.
Lead Inspector
Adam Šaroch
Founder & Technical Director, TUTEL
Adam brings 14 years of hands-on experience with Czech residential construction, from panel-block renovation to new-build supervision. He personally led this inspection and authored the final report. Every TUTEL pre-purchase inspection is conducted or directly supervised by Adam.
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