A developer just called me and said he wants to build a detached apartment complex. It would small cottages essentially. We have an allowance for cottage clusters at double the underlying density (which in this case would allow one unit for each 2,500 sf of lot area. He wants to go under our MFD density which would be one unit per 1,200 sf. He says other places (he specifically mentioned Arizona, where he owns multiple apartment projects) allow "detached apartment" developments. That's a new one on me. Does anyone among us have any experience with such things?