The phrase "a permanent base for" is correct and usable in written English.
It can be used when referring to a stable or long-term location or foundation for something, such as an organization, operation, or activity.
Example: "The company established a permanent base for its operations in the new facility to ensure consistent productivity."
Alternatives: "a lasting foundation for" or "a stable hub for".
The prospect of Greece becoming a permanent base for refugees would not only place extra pressure on society, but inject it with renewed vitality.
Starting in 1354, Orhan's son Süleyman transformed Gallipoli, a peninsula on the European side of the Dardanelles, into a permanent base for expansion into Europe and refused to leave, despite the protests of Cantacuzenus and others.
Nonetheless, two years ago Denton, who is forty-four, set up a permanent base for the operation in a large loft in Nolita, which he increasingly shows off, as if to demonstrate that his bloggers do not wear pajamas all day long.
When he and friends organised the iconic Beckenham Free Festival in 1969, Bowie was still an obscure and penniless musician hoping to raise funds to secure a permanent base for his experimental Arts Lab project set up in the backroom of the nearby Three Tuns pub.
The operating subsidiary, Coventry City Football Club (Holdings) Limited, who employ all the club's staff, hope to find alternative retail premises as well as a permanent base for employees.
Central to that dream was a permanent base for U.S. military forces in Iraq to control U.S. access to the energy resources of the Middle East and Caucuses.
And that momentum will be maintained through Bourne's plans to build a permanent base in Brighton, for continuing work with the local dance and youth community.
For a permanent base, a larger craft would be needed to ferry the pieces.
Rebecca: We applied for a permanent base and asked to be anywhere but like, Mississippi — so, of course, we were stationed in Gulfport, Miss.
It's also where they came up with the idea of building studios around an exhibition space, and when they had to give it up to more commercial renters, they started looking for a permanent base.
