Upgraded laboratory and workshops are also proposed.
Managing director Vernon Amor said: “As an independent family business, we invest not just for the next few years ahead, but for the longer term and future generations.
“Through our biggest-ever programme of capital investment, we aim to create more jobs, attract visitors to the county of Herefordshire, improve the working conditions for our staff, and further improve the quality of our beers by adopting innovative, world-class, energy-efficient technology.”
The application said the site’s role as a visitor attraction will be enhanced beyond the current “relatively uninspiring” tap room and shop.
Instead the three-storey brewery building behind it will house a larger tap room cafe/restaurant and visitor centre.
It will include a roof terrace overlooking the brewery site and “showcase the best of Wye Valley Brewery beers, their local suppliers and Herefordshire produce more generally”, the planning statement added.
The new facilities will feature the latest in efficient brewing equipment and new solar panels installed on available roofs and on land to the north, which is the subject of a separate planning application.