In a stick built house you're paying a lot of labor. Material prices are not that much.

For example, the material list for a 3 bedroom house is 130k. https://www.menards.com/main/building-materials/books-buildi...

Say the land is 130k in your region. You won't find 3b houses for less than 360k. If you're looking at not so cheap builders, it will be 500k.

I think there's a revolution coming in the way we build houses, it must be - because costs are through the roof. It could be either in the form of prefabricated walls, like we have now trusses, or lego bricks like the OP, or something.

For stick frame houses, around 10-15% of the cost is framing. Finishes account for the bulk of the cost.

well yeah, because everything is so bespoke: plumbing, electrical, windows, doors, drywall, trimming. I hope to see some kind of evolution of housing where these things are not installed by skilled labor somehow.

It's the UK, so everything is twice as expensive anyway.

Not the Bourbon Creams at Waitrose. 90p? What a steal.

Custard Creams are 65p at Tesco, bargain of the decade

Frankly there is zero way to bet a stud wall with a bunch of CNC'd plywood. The key is most of the wall is not made of the stud, plywood requires the entire sqft or m2 to consist of plywood.

Margin.

If they save time and provide convenience or reassurance, then they'll provide value for some people.

It remains to be seen what the demand will look like, especially given the heavily regulated market.

edit: the "Fit out & finishes" drop down really brings the costs up. I'm not so sure about this product after all.

R31 exterior foam will rather outperform the WikiHouse blocks due to reduced thermal bridging. And you get a structure that is essentially immune to condensation damage, so you can skip the annoying interior vapor barrier and all the problems that it can cause all by itself.