Why it matters
The producer
Hundred Hills did not begin with an inheritance or a family story. Stephen Duckett spent three years and visited fifty candidate sites across southern England before committing to a single hectare of chalk. He modelled frost risk and airflow, ran soil analysis, and rejected every other valley. What he was looking for was not charm but chemistry: the right slope, the right drainage, the right spring protection for Pinot Noir and Chardonnay in a climate that can end a growing season before it starts.
The estate he built sits in Stonor Valley in the Chiltern Hills between Oxford and Henley-on-Thames, 17 hectares planted exclusively with those two grapes. Every bottle is vintage-dated and made from 100% estate-grown fruit. There is no blending across years, no bought-in juice, no reserve wines. The range runs from the Preamble tier through a varietal Blanc de Blancs to Hillside No.3, a late-harvest prestige selection, and the wines appear in over 40 Michelin-starred restaurants across the UK.
Place and vineyards
Where the wines begin
Stonor Valley cuts through the Chiltern Hills, a chalk escarpment that rises between the Thames Valley and the Midland clay plain. The chalk here is the same geological material that underpins the most mineral-driven sparkling wines in northern Europe: free-draining, low in nutrients, forcing vines to work deep for water and producing grapes with high acidity and concentrated fruit character.
The valley head at Stonor creates a natural airflow corridor that draws cold air away from the vineyard floor on still spring nights, reducing the frost risk that threatens budbreak across English viticulture. South-facing slopes catch the best of the growing season's light from April through October. The combination of chalk drainage, aspect, and frost microclimate is what Duckett's analysis identified as the decisive set of conditions, and it is what shows in the lemon, lime, and mineral registers of the Blanc de Blancs.
In the cellar
Vineyards and cellar
The 17-hectare estate is farmed for late, concentrated harvests. Grapes are picked only after at least 100 days on the vine, a minimum hang time that builds fruit depth and aromatic complexity rather than the early, high-acid base wines that many English estates prefer. In the 2019 vintage, the Blanc de Noirs grapes exceeded 110 days before picking.
In the cellar, the two grapes take different paths. Chardonnay is often fermented in oak with bâtonnage, the lees stirred regularly to build texture and integrate the oak into the wine's body. Pinot Noir goes into stainless steel, a vessel that preserves the grape's red fruit clarity and freshness without adding weight. Both routes feed a traditional-method sparkling production: secondary fermentation in bottle, extended time on lees, disgorgement.
Wines to know
The range in view
The range runs across three distinct tiers. The Preamble No.2 is the most accessible expression: fermented in oak and steel, aged for 36 months on lees, it carries biscuit and brioche from the extended contact alongside the estate's characteristic acidity. It is a wine built for early drinking and for introducing the Stonor Valley character without the concentration of the upper selections.
The Blanc de Blancs is the varietal Chardonnay statement. Oak fermentation and bâtonnage give it a creamy mid-palate weight, but the chalk site keeps the acid line clean and the finish long. Aromatics run toward lemon zest, lime, yuzu, and sea spray, with a nutty, umami quality on the finish that comes from the oak ageing rather than from sweetness.
A useful way in
A bottle to begin with
Start with the Blanc de Blancs 2019. It is 100% Chardonnay from the chalk slopes of Stonor Valley, fermented in oak with bâtonnage, and it draws together the estate's core decisions in a single bottle: the chalk site, the Chardonnay-only approach, the oak fermentation that builds texture without obscuring the mineral character underneath. The aromatics are vivid and precise: lemon zest, lime, yuzu, sea spray. The finish is nutty, long, and faintly umami. It is not a light or neutral wine; the oak and the chalk both show, and the combination makes clear what Duckett built in Oxfordshire and why it took three years to find the right valley.