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Transfer of Development Rights Sales Data
Rural TDR
Transferrable Development Rights (TDR) from rural sending sites are used in cities and within unincorporated urban areas of King County. In unincorporated urban areas, each rural TDR equals 2 additional lots in urban subdivision; inside partner cities, each rural TDR equals a specific amount of additional commercial or residential square footage unique to the partner city according to the terms of an interlocal agreement with King County. Rural TDRs are also used in rural King County to increase square footage of an accessory dwelling unit.
Rural TDR transactions occur between private individuals or organizations; they may also be conducted by King County.
Download a data table of private TDR market sales of rural TDR credits Download Excel file (~20 KB).
Download a data table of King County TDR Bank sales of rural TDR credits Download Excel file (~20 KB).
Rural Transfer of Development Rights Market Summary Data 2000-2024 |
|
|---|---|
| Total Number of Rural TDRs Sold Since 2000 |
2,134 TDRs |
|
Total Number of Transactions Since 2000 |
160 Transactions |
|
Total Number of Rural TDRs Sold in the Last 2 Years |
9 TDRs |
| Total Number of Transactions in the Last 2 Years | 5 Transactions |
|
Average Price in the Last 2 Years |
$ 24,745.44 per TDR |
Urban TDR
TDR from urban sending sites are only used in unincorporated urban areas of King County where each urban TDR equals 1 additional lot in an urban subdivision.
Download a data table of private TDR market sales of urban TDR credits - Download Excel file(~20 KB).
Urban Transfer of Development Rights Market Summary Data 2000-2024 |
|
|---|---|
| Total Number of Urban TDRs Sold Since 2000 |
239 TDRs |
|
Total Number of Transactions Since 2000 |
46 Transactions |
| Total Number of Urban TDRs Sold in the Last 2 Years |
10 TDRs |
|
Total Number of Transactions in the Last 2 Years |
2 Transactions |
| Average Price in the Last 2 Years | $9,000 per TDR |