I am doing a english suburbs style world, but while I have suburban decorative buildings from boroughsburg. I want to make a decorative buildings that are more in line with English buildings, I am very unsure where to start.

My guess is that the designer of those homes used the Sims 3 itself to help them, but I am wanting to do something with skills I haven't learned.

Where would I start perhaps?

Hello @landon
Have you googled/researched English suburbs for the type of buildings you would like to create?
English villages are a great place to start with some really old buildings dating back to Tudor times.
I used some barn wall panels to create the exterior of the buildings; indoors a lot of the rooms have low ceilings and dimensions. I think the building tools in Sims 4 might suit you better as they offer different wall heights?

Good luck with your project.