Hall house C. 1350 altered 1600 another house C. 1580-1600. Barn 18th century and 18/19th century house.

Additional:

Tree-ring dating commissioned by Cymdeithas Hanes Beddgelert and RCAHMW. Results reported in Vernacular Architecture 38 (2007) with notes by Richard Suggett, Daniel Miles, Margaret Dunn:

7. DOLBENMAEN, Clenennau (SH 5320 4240)
(a) Front range Felling date ranges: 1520-50; 1522-52; 1535-49; 1551-2; 1574-1604; 1577-1607; 1581-1611
(b) Rear wing Felling date ranges: 1556-86; 1571-1601
(c) Repair phase to both ranges Felling dates: Spring/Summer 1732
(a) Principal rafters 1512(3), 1518(7+33C NM), 1510(2+25?C NM); Purlins 1570(h/s), 1566(h/s); Raking struts (1/2) 1511(h/s); Ridge 1563(h/s); (b) Purlins 1545(h/s), 1560(h/s); (c) Principal rafters (3/4) 1731(24?C, 18?C), 1714(2); Collars 1731(21?C, 16). Site Masters (a+b) 1406-1570 BDGLRT10 (t = 10.0 BDGLRT17; 9.2 BDGLRT22; 8.9 ROYALHS3); (c) 1647-1731 BDGLRT11 (t = 6.4 BASINGDF; 5.5 CHAZEY2; 5.3 DRELM; 5.1 HANTS02)
Clenennau was the historic centre of one of the largest estates in Eifionydd, south Caernarvonshire, but was reduced to the status of a farmhouse by the 18th century and considerably modified. Tree-ring dating has shown the building sequence of this important house to be somewhat difficult to interpret, given the wide variety of felling date ranges. However, the present stone-built L-plan structure has a 16th century origin: the front range retains two arch-braced trusses from a (parlour) cross-wing probably built c. 1550 and adjusted in the later16th century. The hall (with gallery referred to c. 1600) was reconstructed in 1732, and this rear range is now the working kitchen of the farmhouse. Plan and description in RCAHMW, Caernarvonshire Inventory II (1960), 67-8, fig.58.
(R.F.Suggett/RCAHMW/July 2007)