A port from CS:S, Parkhouse hands the CTs a dozen different sniping options from a rock ledge that hugs one side of the map's centerpiece, a two-floor modern house moated by a lake. Two pairs of hostages are isolated on a top and bottom floor. With scoped weapons, the CTs have a serious advantage, but there are moments of fun in this asymmetrical siege map that remind me of classics cs_assault and cs_militia.
Against the threat of sniping, turtling is usually the best option for the Terrorists, and things get wonderfully messy when the CTs are forced to take the fight indoors. I wouldn't call Parkhouse balanced, but I've enjoyed it.