Green space in the suburbs is at a premium, and even Route 128 is hurtling toward the day when you won’t be able to squeeze one more car or truck into its traffic-jammed lanes. But rest assured, one thing we will never run out of is stalled development projects that spend years — and sometimes decades — spinning their wheels. Yet certainly, we have seen some remarkable progress over the past year.

Grand plans to build a mega hotel, office, and retail complex on the old Polaroid property looked doomed after a high-flying New York developer lost the project to foreclosure. But then along came Boston-based developer Park, who won approval from Waltham officials for a slimmed-down version of the plan. Check out other stalled projects or check out the rest of the recent developments of Route 128 in the gallery.