The house must be rebuild in the same location while I'm using it and the transition to the new house must be seamless. The garage must be rebuild with the car in it, the kitchen floor and counter top must be replaced while the dishwasher and the oven are running, I must be able to shower and stay in my tub during the bath room replacement, you must rebuild the bedroom discreetly while I'm having sex, toilets must be rebuild while in use.
The restaurant business is so low margin, most restaurants simply can't renovate -- even if you can afford the actual cost of renovation, unless you are already wildly successful you'll never make up the money lost for being closed for weeks, you have to fire and rehire your entire staff, and you'll piss off customers by being closed when they expect you to be open. It makes more sense to simply close the restaurant after a few years and open a new one.
Also architects often need to adjust design while building is under construction.
Deploying code is not comparable to what you have described.