The concept between the Cornish-born breweries will open in Charlestown on the south coast of the county.
St Austell Brewery took a minority share in Harbour Brewing Co, which was founded in 2021, in 2022.
The new site, which is owned by St Austell Brewery, was previously known as the Harbourside Inn and is currently undergoing refurbishment.
Fire damage
The building suffered extensive damage last January due to fire damage that broke out at the Pier House next door.
Harbour Beer House will offer regular, new and exclusive beers from Harbour, alongside favourites and limited-edition cask specials from St Austell Brewery.
Freshly made pizzas will be available to customers and there will also be fridges so beer lovers can choose packaged brews, from breweries further afield, to enjoy at home.
Harbour Brewing founder Eddie Lofthouse said: “We’re looking forward to bringing the Harbour brand to life in this new venue and what better location than Charlestown? We’ll be sharing more with our beer fans about what’s in store in the run up to opening night.”
Transforming the space
St Austell Brewery area manager Helen Sprason added: “We’re totally transforming the space and breathing new life into the building following the fire, which was devastating for our teams at the Pier House and Harbourside, as well as the local community.
“Harbour Beer House will be all about top-tasting beers and showcasing amazing breweries, both here in the south-west and beyond.
“It’s exciting to be working with Harbour to introduce a new experience for Charlestown, which is already such a vibrant, popular destination for locals and visitors alike.”
The Pier House – also owned by St Austell Brewery – is now closed for a major refurbishment and will also reopen its doors this summer.