17.5 perforated brick external wall + 10cm WVDS year of construction 2006

Hello everyone,

we want to purchase an existing property and have now found a very nice single-family house in terms of size/appearance/layout/equipment that meets our ideas and wishes.

Equipment roughly:

[*]Geothermal energy 2x 60m deep
[*]Ventilation system
[*]Complete underfloor heating in all rooms
[*]4 rooms, 120 sqm
[*]Plot: 560 sqm
[*]Year built: 2006
[*]Double garage incl. 14 sqm tool room
[*]Lower Saxony near a large automobile company
[*]Price: 325k€

After receiving the floor plan and documents on the statics, the exterior walls and insulation are making me a bit anxious/worried, so I want to ask for advice. (I am absolutely not an expert)

All masonry (exterior as well as interior walls) consists of 17.5 cm hollow bricks (0.9/12/DBM). Exterior walls additionally have a 10 cm thick ETICS layer.

To me, the 17.5 cm exterior walls and 10 cm insulation seem a bit "little." Of course, purely from a statics point of view, it won't fall on our heads, but after some research I mostly find posts about 24 cm exterior masonry and ETICS. Therefore, I would like to ask you for advice and your opinion whether this construction is also "up-to-date" in terms of insulation and for the future? :)

Thank you very much and best regards

This is a completely normal construction corresponding to the year of construction. If this were built new today, there might be 2-4 cm more insulation added. 17.5 cm of exterior masonry is also common in ETICS or double-shell wall constructions.

What exactly are you afraid of? You can tick off the statics, and it's best to determine the energetic quality, the design of the heat pump, and the brine borehole based not on insulation thicknesses but on the previous owners' heating cost statements.

Contemporary ... in a few years, by law, only passive houses will be allowed as new buildings. That will then be contemporary. And now?