Campaigners fighting to save Abergavenny's cattle market from re-development as a Morrisons superstore have lost their High Court challenge.
The group, Keep Abergavenny Livestock Market (KALM) claimed that the decision to allow planning permission to build on the site was in breach of a law that had been in place since the middle of the 19th Century that meant a market must be held in the town.
Monmouthshire County Council's plans will see the market replaced with a supermarket, a library and car parking.
The council is planning to replace the market with a new facility near Raglan and the court heard it has committed itself to maintaining a livestock market within the county boundaries for at least 50 years.
Mrs Justice Nicola Davies, said the council had taken all conservation, environmental and socio-economic issues properly into account when reaching its decision.
The judge rejected arguments that the council had been obliged to carry out a full environment assessment before granting consent. It had carried out a detailed consultation exercise and potential social and economic impacts had been carefully investigated.
The campaign group KALM say that whilst they are disappointed by the news they would look to challenge the High Court's decision in the Appeal Court.
Monmouthshire County Council welcomed the decision by the High Court in London saying that the scheme would help boost the local community.