This map has a discussion topic which can be visited here

It is based around a residential estate in the fictional City 17 in Half-Life 2. The map is currently in its 3rd incarnation and has grown due to its popularity. I have added around 50 rooms, almost of inch of the map is filled with bedrooms, bathrooms, kitchens, halls, corridors, even a coffee shop. The gameplay has slowed slightly due to the number of rooms, although the overall size has not changed. The gameplay is essentially still built around the 3 main buildings and its central courtyard and pond.