This is the best model I've made to date. Yeah I'm kinda proud of it. It's got a lot of detail including roof vents, an electric meter with mast, gutters with downspouts and lots of trim.
I used 3mm LEDs on the front porch and in several rooms. These are wired independently so they can be switched on/off at random times. The connector (Shown in one of the .jpgs fits into the walls stl. I painted the inside of the house black and used black RTV seal to keep the light from leaking through the PLA and from room to room. The parts have locators to help fit them together easily. I printed them in numerous parts for painting purposes, but you can create your own .stl files to combine them. I used a dual extruder to make my window frames with the glass in them but you can print just the frames and add glass later.