Do all the other houses all look the same or is it varied? New stuff should fit into the character of the area. If it's a street of solely Victorian houses and you want a glass pavilion it might be awkward. If the scene is mixed you can slot something unique in more easily.
In mixed roads lots of planners quite like contemporary stuff rather than pastiches so the history of the street can be traced in its architecture.
Do all the other houses all look the same or is it varied? New stuff should fit into the character of the area. If it's a street of solely Victorian houses and you want a glass pavilion it might be awkward. If the scene is mixed you can slot something unique in more easily.
In mixed roads lots of planners quite like contemporary stuff rather than pastiches so the history of the street can be traced in its architecture.