Sure thing. First off, keep the modules on a strict grid—no floating corners, everything lines up on the same unit. Use a base block that’s the same height, then stack extra floors on top of it; that way the engine can cache the base shape and just add layers. For the façade, stick to a limited set of panel types—maybe a simple brick pattern, a glass pane set, and a metal trim. That lets you mix and match without re‑building the whole mesh. Add a quick LOD system so the detail drops off at a distance, saving on draws. And always test a new module on a single floor before pushing it into the full city; that keeps your build time short and your bugs small. Just remember: precision beats flashy gimmicks, especially on a tight frame budget.

That sounds good to me. A quick test harness will cut a lot of headaches. Locking the panel set keeps the engine happy, and pre‑tuned normal maps mean we don’t waste time on the GPU. A parametric glass panel that changes tint with one value is practical—just make sure the shader stays fast and the light bleed stays under control. Keep the modules simple, tweak the light, run the test, then move on. That’s the way to keep the build solid and the iteration speed up.