| 1959 – |
City of Black Diamond incorporated |
| 1976 – |
Foundation of BDHS: Historic
Preservation and Restoration |
| 1980 – |
City of Black Diamond adopts first
Comprehensive Plan |
| 1990 – |
Washington State adopts Growth
Management Act (GMA) |
| 1994 – |
City of Black Diamond annexes 623
acres (Ord. 515) and 160 acres (Ord. 517) |
| 1996 – |
City of Black Diamond adopts
Comprehensive Plan Update per GMA |
| 1996 – |
City of Black Diamond creates Urban
Growth Area Agreement |
| 2000 – |
City of Black Diamond adopts
Comprehensive Plan Update |
| 2003 – |
City of Black Diamond adopts
Transfer of Development Rights
program (Ord. 752) |
| 2005 – |
City of Black Diamond adopts Master
Plan Development (Ord. 05-779) |
| 2005 – |
City of Black Diamond establishes
Area Open Space Protection Agreement |
| 2005 – |
City of Black Diamond enacts
Divisions of Land Ordinance (Ord. 05-780) |
| 2006 – |
YarrowBay Communities hosts public
meeting at Black Diamond Bakery on
holdings in Black Diamond |
| 2008 – |
YarrowBay hosts informational
community Open House |