Here are a couple more you might use based on what your trying to achieve. Im using this layout specifically to see how big a town I can make without having to trade for food, so i am cramming everything I can inside the cells. Its a 40 x 40 layout which works with 10 x 10 crop / orchard tiles as well as 10 x 20 animal pens. I leave the center open and make little mini towns inside them. 4 to 6 houses just depends, Small midievil barns on each side of the houses, small town market, small town blacksmith, small town tailor, Mini hospital and as many beekeepers as I can cram in there. In the case of animal pens I am substituting 8 beekeepers for 4 butchers. The cells are not pretty and not supposed to be. I have set these up to be efficient. That being said, one can easily set these up to be more aesthetically pleasing.
You could add in roads, fences, water pumps, windmills, hedges, trees and all the other goodies to have quite a nice area and it should still be pretty efficient. I would also suggest going 4 wide on roads surrounding the outermost part of the cell so it doesnt look so crowded and you can easily see the roadside decorations that you may place.
Once I finish seeing how far I can go Ill do another town based on this cell layout but pretty it up to look more like suburbs surrounding a central downtown. The downtown will have all the churches, upgraded housing, commercial industries (bakers, markets, dairys, ect ect) closest in to the cells then cram the center with upgraded housing and really nice statues parks ect ect.
Hope it gives you some food for thought.