sink estate
n.— «Today, as the dust settles on six years of building works, major changes are apparent. Milton Court has been a proving ground of a potent policy idea—the erasure and re-invention of council-run housing property. The “sink estate” has been transformed by bull-dozing tower blocks and inserting new low-rise housing for better-off car owning families, often at the expense of low income and disadvantaged African Caribbean residents.» —“Estates renewal: hype or hope?” ChronicleWorld (United Kingdom) Oct. 13, 1999. (source: Double-Tongued Dictionary)