Two-thirds of executives in seniors housing said their primary strategy for growth in 2015 is to buy or merge with existing properties, according to a new GE Capital, Healthcare Financial Services survey.

Around 26% of respondents said they plan to revitalize or upgrade existing properties. Thirty-one percent said they were likely to seek construction financing.

A fourth of respondents said rising interest rates were going to be the industry’s greatest challenge, with a similar percentage saying regulatory oversight would be the biggest problem.

A year ago, the U.S. economy and reimbursement pressures were listed as the top concerns. There were 150 executives in the senior housing and care industry who took the GE Capital survey.