One Block

Victoria | Yarra Valley

James' Review

Jayden Ong, a first-generation Eurasian-Australian, was infected by the wine bug working at the Melbourne Wine Room from 2000-06. He has moved with bewildering speed across many facets of the industry since then: wedging in vintages at Curly Flat ('06), Moorooduc Estate ('07) and Allies/Garagiste ('08-09) while completing the CSU oenology course; he also opened Cumulus Inc., a restaurant and bar in Melbourne, with superstar chef Andrew McConnell and business partners; he continues to mentor the Cumulus wine team. Apart from an annual pilgrimage to France to further his grapegrowing and winemaking experience, he went to Italy in '06 and '12, Germany in '10, Spain in '11 and '13, and California in '14. He founded One Block in '10 with the philosophy of making single vineyard wines ‘from quality individual vineyard sites where the variety grown suits the site', making 100 dozen of his first love - chardonnay - in '10. In '15 he and partner Morgan Ong purchased a small property and home at Mt Toolebewong, 700m above sea level, in the Yarra Valley. They immediately began biological site preparation for a close-planted vineyard with three new clones of chardonnay. He also leases the dry-grown Chestnut Hill vineyard and winery at Mount Burnett, and has begun conversion of the vineyard to organic and biological farming methods. He doesn't intend to slow down, with all sorts of projects in mind for the coming years. Exports to the UK, Singapore and China.


Founded in 2010, this independent, family owned winery has built its reputation on quality wines made from quality vineyard sites. One Block aims to deliver a bottle of wine that encapsulates a specific time and place. Low cropping vines, hand picked fruit from great single vineyard sites, with a gentle approach in the winery are key principles on the journey from vine to bottle. This gives us the very best opportunity to produce great wine. And that’s what really matters; the wine in bottle.


Winemaker Jayden Ong
Established 2010
Dozens 1500
Vineyards (area) 5 ha
Opening Hours By appt
Address Nyora Road, Mt Toolebewong, Vic 3777
Telephone 0419 186 888