Single-family house – new construction project from day one - and the planning begins

Our house. Similar to the bungalow 131 by the company Town & Country visible on YouTube, but significantly expanded to 16.2x10.4 m with 168m2 per floor and 336m2 total. Solidly built with 36.5cm aerated concrete, bathroom and shower bathroom completely with oversized tub and included, heat pump and underfloor heating, floor-to-ceiling windows everywhere with manual shutters retrofitted with electric strap winders from the company Rademacher. 35 degree studio trusses with 4 large branded windows from Velux, all doors with 3x light cutouts, some as sliding doors, etc. at a fixed price from the largest German solid house builder in Germany for €231,000. I would never pay the rip-off exorbitant prices of prefabricated house manufacturers. Their qualitatively inferior houses cost from €300,000. Normal price for these is €120,000–150,000.

[...] Their qualitatively inferior houses [...]

If you are not in Munich or equivalent, then you are apparently talking to the wrong companies. Solid construction with general contractor and mid-level equipment is significantly cheaper. Or do you have special features like a slope, huge window fronts, special eco-fetish, etc.? Architect with individual contracting would also be worth considering...

Our house. Similar to the bungalow 131 by the company Town & Country, viewable on YouTube, but significantly expanded to 16.2x10.4 m with 168m2 per floor and 336m2 in total. Built solidly with 36.5cm aerated concrete, bathroom as well as shower bathroom completely with oversized tub included, heat pump and underfloor heating, floor-to-ceiling windows everywhere with manual blinds retrofitted with electric strap winders by the company Rademacher. 35-degree studio trusses with 4 large branded windows by Velux, all doors with 3x light inset, some as sliding doors, etc., at a fixed price from the largest German solid house builder in Germany for €231,000. I would never pay the ripoff exorbitant prices of prefabricated house manufacturers. Their qualitatively inferior houses cost from €300,000. Normal price for these €120,000-150,000.

Thanks for your feedback – fits indeed. We now have an offer on the table from the general contractor that will probably end up around €2,300-2,500 with a construction performance description that I have not seen like this from any “prefab house” provider (referring to timber frame or solid wood house). We will probably lean in that direction...

Oh, and yes, quite a few windows, actually almost everything floor-to-ceiling, large sliding doors to the garden and slope. Should be a flat-roof bungalow. Living, dining, kitchen, office, garage, etc. upstairs and bedrooms, bathroom, technical room, and basement downstairs.

Thanks for your feedback - it indeed fits. We now have an offer from the general contractor on the table, which will probably end up between €2300-2500 for a scope of construction services that I haven’t seen from any "prefabricated house" provider before (referring to timber frame or solid wood house). We will probably go in this direction...

Oh, and yes, quite a few windows, actually almost all floor-to-ceiling, large sliding doors to the garden and hillside. It’s going to be a flat-roof bungalow. Upstairs living, dining, kitchen, office, garage, etc., and downstairs bedrooms, bathroom, technical room, and cellar.