Two-flats and greystones stand shoulder to shoulder on these streets, each with a front lawn roughly the size of a good rug and a backyard just deep enough for a table and a grill. Flores & Castro Services INC. treats those small squares seriously — mowing them clean, trimming tight to the walk and the wrought iron, edging so the grass stops exactly where it ought to. Around Boulevard Manor the setbacks are shallow and everything is on display from the sidewalk, which is fair reason to do it properly. Seasonal cleanups handle the rest: the debris of winter in spring, the leaf fall in October, the yard handed back ready. Little lots, done right, add up to a block worth looking at.