In 1978 Brian Croser selected the Piccadilly Valley in the centre of the Adelaide Hills as the best terroir to grow Chardonnay for Petaluma Chardonnay and Pinot Noir and Chardonnay for Croser sparkling wine. The first vineyard planted in the Adelaide Hills since the 19th century, The Tiers Vineyard is in the centre of the Piccadilly Valley at 450 metres elevation next to the Tapanappa Winery and the Croser family home.

The Tiers Vineyard was planted in 1979 with the OF Chardonnay clone, a Californian derived clone with its roots in the mists of Mersault. It is is 3 hectares of 38 year-old Chardonnay on closer spacing of 3,330 vines/hectare with vertical canopy, the first Australian mainland vineyard on this labour intensive configuration.

"This is a spectacular chardonnay, eschewing malolactic in the name of precision and freshness, while sacrificing nothing in the way of flavour and textural detail in doing so. A reductive riff of gunflint segues to notes of white fig, honeydew melon, nectarine and creamed cashew. A chassis of mineral and bright acidity carry the flavours long and broad, chaperoned by high class oak that is nestled into the fray. This will age beautifully over the coming decade, but oozes class and such poise already that it is difficult to refrain from opening a bottle or, at least in my case, finishing the glass." 97pts - Ned Goodwin - Wine Companion