Rising rents

Kendall Square remains a successful business district: Office space is hard to come by, rents are rising, and it boasts a roster of marquee companies, like Microsoft Corp. and Google Inc.

But for all its outward bustle, Kendall Square is in transition. And ironically, it has its own success to blame, as a kind of gentrification has made Kendall too expensive or too popular for the many, smaller, younger tech businesses that gave the area such cachet.

Cambridge officials recently circulated a survey among the Kendall community to gauge what additional steps they want taken.