| Known Estates | Date | Acreage | Value | Rents | Fees | Reference |
| Chignall | 1270 | 152 | 88s | 8s | 1 | I.P.M C.132.39.17 |
| Elmstead | 209 | 239s | 177s | I.P.M C.132.39.17 | ||
| Stapleford (Tawney) | 401 | 237s | 63s | 7 1/2 | I.P.M C.132.39.17 | |
| Stambridge (tenanted) | I.P.M C.132.39.17 | |||||
| Latton | 272 | 125s | 22s | 1/2 | I.P.M C.132.39.17 | |
| Probable Total | 1034 | 689s | 280s | 9 | ||
| I.P.M. for Richard | 1296 | C.I.P.M. iii, 326 | ||||
| Elmstead | 1296 | (not extended | 400s | 1. | I.P.M. C.133. 74 | |
| Stapleford | 1296 | 791 | 453s | 34s | 2 | I.P.M. C.133. 74 |
| Lambourne | 1296 | 4 | I.P.M. C.133. 74 | |||
| Probable Total | 1296 | 795 | 853s | 34s | 3 | I.P.M. C.133. 74 |
| Other Probable: | ||||||
| Hertfordshire | ||||||
| Eastwick | 1264 | Misc. i, 706. | ||||
| 1301 | 314 | 438s | 278s | I.P.M. C.133.100. | ||
| Possible Estates | ||||||
| Great Stambridge | 1276 | 300 | 200s | FF.ii.16.61. | ||
| Elmstead | FF.ii.16.61. | |||||
| Stambridge | FF.ii.16.61. | |||||
| Bentley | FF.ii.16.61. | |||||
| Bromley | 1284 | 139 | FF.ii. 43. 265. | |||
| North Benfleet | FF.ii. 43. 265. | |||||
| Bures | FF.ii. 43. 265. | |||||
| Nevendon | 1288 | 373 | FF.ii. 66. 447. | |||
| Probable Total as inherited | 1034 | 689s | 280s | 9 Fees | ||
| Possible Total | 2150 |
| Acquisitions | ||
| 1284 Reversion of 1 mess., 136 acres land and 5s rent in Elmstead, Stambridge, Bentley and Bromley, bought for 10 marks. FF.ii.43.265 | ||
| Rented Out | ||
| 1276 300 acres marsh and advowson of the church in Gt. Stambridge, for rent of 10 pa. FF.ii.16.61 | ||
| Disposals | ||
| 1283 | Manor of Chignall Tany, rights confirmed to Thomas de Weyland and his wife and daughter, for cons. of 300 marks, and service of 1 kt's fee. | FF.ii.40.234 |
| 1288 | Grant in Frankalmoign of 285 acres of land and 100 acres marsh in Little Benfleet, Nevendon and Bures, to Abbot of St. John the Baptist, Colchester. | FF.ii.66.447 |
| Antecedents | ||
| Family first appeared in Essex around 1130, or earlier. The major line became extinct with the death of Richard's grandson, Laurence, in 1320., see. L.R. Buttle, 'The de Tanys'. | C.I.P.M. vi, 106 |