About The Farm

Diemersdal Wine Estate

Diemersdal lies on the cool slopes of the Durbanville wine region, one of Cape’s oldest wine regions with a record for excellence in wines, the result of the region’s unique terroir. Ancient soils of decomposed granite with a moisture-retaining clay component are an ideal base for a number of grape varieties. Climatically, Diemersdal’s proximity to the cold Atlantic Ocean to the west ensures a temperate climate with mild summers and cold, wet winters where an average rainfall of 700mm per annum is experienced. During the summer months a persistent cool breeze from the south-east ensures Diemersdal’s vines escape the heat of summer with even-ripening of healthy fruit one of the farm’s features. Some 200ha of Diemersdal are planted to a variety of cultivars, with Sauvignon Blanc being the dominant variety.

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Our Terroir

Topography, Soil & Climate

Diemersdal Wines are the perfect expression of the distinct Durbanville terroir; the sum of the complex interaction between topography, soil content and climate. The grapes that go into Diemersdal Wines are grown under optimal conditions, in deep red Hutton soils, featuring decomposed granite and a high clay content. The vineyards, situated on the northern and southern slopes of the Dorstberg, are subject to glorious cooling mists that roll in each afternoon from the Atlantic Ocean.

The grapes are grown under dryland conditions, with no irrigation, which allows them to uniformly ripen and develop concentrated flavours. The combination of excellent soil, varying aspect, slopes and the high rainfall of 700mm per year all contribute to the uniqueness of Diemersdal Wines.

Dryland Farming

Diemersdal Technique

A resounding feature of Diemersdal is the fact that throughout its history all viticulture has been done without irrigation. Dryland farming is the way of Diemersdal, with the vines entirely dependent on rainfall. Dryland farming results in hardy vines that have developed a natural resistance to drought, miraculously finding their own resources to counter dry conditions.

These hardy vines, totally in-tune with the vagaries of nature, are also known to offer a more visceral expression of site and terroir than grapes that are used to the relief of constant irrigation. It is this taste of place and of terroir that transcends to the grapes of Diemersdal, resulting in the exceptional and distinctive wines the farm is known for.

Sustainability & Conservation

Diemersdal Wine Estate

Vineyards on Diemersdal are farmed to regenerative methods, with the natural irrigation complemented by the planting of cover-crops between the wines to create an ecosystem for natural insect-life and to draw carbon into the soil. Diemersdal was the first wine farm in the Durbanville wine region to achieve WWF Conservation Champion status. This unique wine initiative, managed by the World Wide Fund for Nature and unique to the Cape winelands, underscores the local wine industry’s commitment to conservation, the close relationship between wine farmers and their natural environment, and the indigenous natural setting where the country’s wines are made.

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Our Commitment

To Preservation & Conservation

Diemersdal’s emphatic conservation credentials include its preservation of a 16.8ha conservation area on one of the farms pristine hills on which a number of scarce renosterveld plant species are found. This conservation area spans the Dorsberg, the most northern hill range within the Tygerberg cluster. The vegetation type of the conservation area is Swartland Shale Renosterveld, currently the most threatened ecosystem in the country, having lost more than 90% of its original extent and for this reason bearing Critically Endangered Status.

During September 2020 the property was visited, and a basic plant survey was done. During this botanical scan, 38 species of flowering plants were recorded. The list is still very preliminary, and it is likely that at least 200 species still occur in this area. The most interesting find was a small population of Endangered Oxalis strigose, as well as Geissorhiza erosa (also Endangered).


Conservation & Sustainable Production

Diemersdal Wine Estate is a proud member of the following organisations:

WWF Conservation Champion Logo

WWF Conservation Champion

Diemersdal Wine Estate has become the latest WWF Conservation Champion. This is a select group of 42 South African wine farms who have met the programme’s stringent requirements, thereby proving themselves to be leaders of nature conservation and sustainable wine production. Diemersdal signed a 10 year biodiversity agreement with Cape Nature to establish a 16.8 hectare conservation area. This conservation area spans the Dorsberg, the most northern hill range within the Tygerberg cluster, within the city’s bioregional plan, the Biodiversity Network.

SWSA Integrity and Sustainability Certified Logo


Integrated production of wine complies with international wine industry environmental sustainability criteria.

BRCGS Food Safety Certified Logo


A globally recognised GFSI food safety manufacturing programme.

Wieta Certified Labour Practice Logo


Multi-stakeholder, non-profit, voluntary organisation which actively promotes ethical trade in the wine industry value chain through training, technical assessment and audits to assess members’ compliance with its code of good practice.

Carbon Heroes Logo

Carbon Heroes

Through this digital recognition platform, we celebrate the Carbon Heroes taking part in the Confronting Climate Change (CCC) Initiative for their considerable effort in calculating and understanding their carbon emissions. You are making a positive contribution to mitigating climate change!

BWI Logo


In a unique partnership between the conservation sector and the South African Wine Industry, wine producers are setting aside hectares of natural veld for conservation. So far more than 112 000ha of natural veld have been set aside and farmers have adapted their farming methods to produce more sustainably. There are currently 112 members, 13 champions and 10 co-operative cellar members involved with this project.