London's Georgian era saw spare, minimalist design take over from Neo-classical Italian insipiration. Almost moderne 2-300 years ago, and that bled into early Victoriana.
London mews are the former stables of grander homes on a street behind - a stable boy would live above the horses. They now sell for $1-6 million a pop, for the cobbled street and village atmosphere in the heart of the city, despite being so tiny:
A couple steps up on the rowhome ladder would be the worker's cottages - although no different from other UK cities, London ones tend to be very smarted up, sell for a few million and are colourfully painted, rather than the brown brick. Very bijoux:
Then the merchant's houses - slightly more industrial and bricky (note the shutters, taken over by French Huguenot refugees, fleeing Catholic persecution)
Next up were the middle class homes, that could house a servant girl in the roof. You might even start seeing some stucco on the ground floor
https://www.montcalm.co.uk/blog/wp-c...sea-london.jpg
Upper middle classes could house more than one servant, and were located in private squares, sometimes with private parks. These now sell in the tens of millions, or are subdivided up into flats that sell for a few million. The private parks still come with a personal key to the gate (one week a year they're all opened up to the general public).
https://www.propertypriceadvice.co.u...-London-RS.jpg,
https://www.trfihi-parks.com/images/...520652_SKK.jpg
You'll start to see more stucco and embellishments