Why are house size locked by lots?

[Aladire]

I understand that the zone would have to be remodeled because the plot sizes are different for each size, but how come in the first place, it was not made so that all the plots can fit a large and then just let people pick which house could be built there?

This way, you can give the option to have a smaller house, but a bigger yard. Or have a smaller house that is wider. Or have a mansion and like no yard.

I was wondering as if this was ever implemented, then people cannot complain that they could not get a large house anymore.

[Malzian]

I understand that the zone would have to be remodeled because the plot sizes are different for each size, but how come in the first place, it was not made so that all the plots can fit a large and then just let people pick which house could be built there?

This way, you can give the option to have a smaller house, but a bigger yard. Or have a smaller house that is wider. Or have a mansion and like no yard.

I was wondering as if this was ever implemented, then people cannot complain that they could not get a large house anymore.

They would need to resize the plots from small and medium to large plots, and then if you put a small house on a large plot you have a HUGE yard compared to a large house with a smaller yard. With the constraints of external furnishings, your large house with the small yard would look awkward with the small amount of items you could put on it and they can't really increase the external limit. It's a compromise and it also lets them price the smaller plots and houses lower than the large lots and houses which is exactly how real estate works in the real world. Mostly it's about the resources needed to load and run the ward instance, though.