The Esperance Aged Care Facility held their official opening for their new wing on March 18.
The new wing has 34-rooms, including 17 purpose-built to care for people living with dementia.
Once the new wing is ready for residents, the facility will be able to care for up to 114 residents.
Federal Aged Care Minister Ken Wyatt said it was important to provide quality care to seniors in their own communities.
"If you have lived and worked in a place like Esperance all your life, you want to stay close to family and friends as you grow older, so it's important to have access to quality, safe and affordable aged care," Minister Wyatt said.
O'Connor MP Rick Wilson said the expansion was "critical".
"Esperance is a growing area and a retirement haven for many Goldfields and farming families," Mr Wilson said.
Esperance Aged Care Facility board chair Richard Fowler said the facility was a community-driven organisation and all board members were volunteers.
The Rotary Club of Esperance and the Rotary Club of Esperance Bay have led fundraising efforts over many years.
The expansion received $3.1 million in construction support from the Federal Government and the WA state government contributed $3 million towards construction, through the Royalties For Regions Fund.