Hi all, I'm late to the party but enjoying reading this thread. I'm a sucker for old-home charm but also appreciate modern touches. We own a 1910s two-story home in Ybor City that we restored. Windows were a huge part of our project, so I thought I’d share what we did because it involves both grids and no grids in one house, and it surprisingly worked out well.
Our home originally had many small-pane windows (true divided-lite windows with wavy glass) which were beyond repair. When we got new windows, the aesthetic was crucial. On the front of the house and the sides that face the street, we installed double-hung wood-clad windows with a colonial grid pattern (basically a 3-over-1 on our house). They look very period-appropriate. However, on the back of the house, where we added an extension and a sunroom, we opted for large picture windows with no grids to maximize the view of our backyard garden and let more light in. From the front, you’d never know those modern big panes are in the back. From inside, our rear sunroom feels like a different, more contemporary space – it’s like the best of both worlds.
So, mixing grids vs no grids is definitely possible. Think about where you want that charming detail versus where you might want a completely open view. Maybe your front-facing windows to the street get grids (for style/curb appeal), and the back ones that look out to your yard or a view could be plain to give you that unobstructed vista.
One more example: a friend of mine has a newer home, but she loves the farmhouse look, so she added stick-on grids (yes, there are removable mullion strips you can attach) to her plain windows to dress them up. They actually look pretty decent and she can pop them off when she wants to clean the glass thoroughly. That could be a fun interim solution if someone is on the fence – try out a grid look and see if you like it.
For your Mediterranean ranch, you could go either way as people have said. If it were me, I might do something like a grid on that half-circle transom (maybe a spoke or sunburst design) and keep the main rectangular windows below without grids, or perhaps a simple 2x2 grid. I've seen Spanish-style designs where the arched window has a sunburst grill pattern that looks awesome.
At the end of the day, there’s no hard rule; it's what makes you happy when you see your home. You're the one living in it and looking at it every day!