You are visiting www.chateauneuf.dk published by a wine lover from Denmark

You will not find a village or at least a "hameau" named Sinargues. It's a plateau situated between four communes, Domazan, Estézargues, Rochefort-du-Gard and Saze.

Until 2005 the appellation for these four communes was Cotes du Rhone Village, but since 2005 the name of the wines from selected parcels may add the name Signargues. Only red wines are included in the appallation.

The rules for the use of grapes, le encépagement, is like other Village-appellations: At least 50% Grenache, At least 20% Syrah or Mourvedre and not more than 20% other varieties.

In the four communes you'll find two co-operatives in Estézargues and in Rochefort-du-Gard, Les Vignerons du Castelas, 

If you look at the figures below it's obvious that one of the smallest villages, Domazan, has the most private producers. It's a tradition for the winegrowers in Domazan to sell a part of the wines to a negociant, sometimes more than 90%. It's also normal, that a domain has quite many hectares and therefore it's not that easy to sell all the crop which until 2005 was "only" Cotes du Rhone Village and now with a name (Signargues) which might not be familiar to the main part of the consumers around the world.
If you are a wine lover and have had the opportunity to taste the wines from some of the best private producers, then you will expect that Signargues in a foreseable future will be a CRU (Together with Visan and a few years after Cairanne)

The potentiel area of the appellation is not known by the publisher of this site, but as you can see below it's more than 500 hectares. 
The considerable differens between 2008 and 2009 indicates that a bigger part of the production in 2008 was bottled as Cotes du Rhone.

Declared area and yield 2006-2010

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Click to enlarge