does a land value tax have zero or negative deadweight loss?

i was recently reading the wikipedia article on optimal taxation theory, when i came across an assertion that land value taxes (LVT) have not zero deadweight loss, but actually negative deadweight loss.

against subsidized housing

the correct amount of subsidized housing (or “affordable” housing) is zero. there are a number of reasons for this, but here are the most clear and obvious.

  1. cash transfers are better than subsidies. subsidies create deadweight loss.