Cost Estimate Reference Value

Sorry for the individual posts, it can't be helped right now. Feel free to read through it, I would then ask a moderator to delete the posts due to copyright. I might post the values for NE again afterwards - I think that should be allowed.

The plan is to do a lot of the work ourselves and subcontract the rest.

We did exactly the same. However, we had the shell built and did the rest ourselves (except for screed and underfloor heating) and subcontracted everything individually. We built 9.5m*10.5m and 165 sqm of living / usable space without the attic. The attic is developed. So, a total of 210 sqm of space within the thermal envelope.

That brings us to about €1400/sqm (but in Saxony).
For better assessment regarding "standard," since I have no idea what medium standard is:

Masonry:
- 24cm calcium silicate masonry with 032 16cm ETICS
- 25cm waterproof concrete base slab
- inside all walls with 17.5cm calcium silicate
- attic gypsum board walls

Roof:
- 5cm on-rafter insulation, glazed clay roof tiles
- 4 large Velux tilt/turn roof windows
- 2 dormers with real slate

Windows:
- triple-glazed plastic windows
- 2x 2m balcony doors

Interior:
- underfloor heating in the entire house
- gas boiler
- ground floor completely tiled (75€/sqm materials)
- upper floor completely laminate
- 2x duplex CAT7 in every room
- 180 sockets total

Sanitary:
2 bathrooms (6 sqm and 10 sqm), each with fully tiled shower, and tub in the larger bathroom

Attic:
- fully developed and insulated.

No smart home stuff.

Maybe this info helps you with the assessment

what is upscale standard?

@South what is upper standard?

Electric shutters / external blinds, high-quality floor coverings (parquet or high-quality/large-format tiles or elaborate laying patterns), electrical installations beyond the standard (motion detectors, automation, access points, video intercom systems, etc.), elaborate doors (glass inserts, soundproofing, overall interior structure, etc.), "better" bathroom fittings (large tiles, fittings deviating from the standard such as freestanding tubs, large walk-in showers, high-quality faucets and/or sanitary fixtures), guest toilet or two bathrooms, high ceilings > 2.50 m, conservatory Simple standard in comparison includes e.g. double-glazed windows, laminate floors, a small number of sockets, doors with cardboard honeycomb filling, small-format (simple) tiles, no-name DIY store sanitary items, radiators instead of underfloor heating, low ceiling height, terrace made of washed concrete slabs, shower tray in the bathroom There are many characteristics and it is not set in stone. Generally - the more expensive, the more "upper standard". For you, floors between upper and simple depending on the floor level.

Ok, then one could say, if you will, that with us everything except automation and our laminate can be classified as "gehoben". Thanks for the clarification on which criteria come into play there. In the end, it doesn't really matter how you classify it, as long as you enjoy the house.

I only listed it because many homebuilders can relate less to "gehoben" than to a few details about the house in order to estimate a price.

KfW will soon be changed to 150 K with higher funding.

Sorry for off-topic… I have heard something similar, but haven't found it written anywhere? Has it been published anywhere yet?

The best thing is to google with the keywords mentioned here: