Joe Russell
President and Chief Executive Officer at Public Storage
Thank you, Ryan, and thank you for joining us today. Public Storage had a very good start to 2023. We remain focused on leading the self-storage industry, digital evolution, transforming our own operating model and enhancing and growing the portfolio.
In the quarter, we achieved new milestones on several of our key initiatives, which included: Exceeding 60% of customers choosing to move in through our e-rental online lease. Eclipsing 2 million downloads of the Public Storage mobile app. Reaching 400 properties on our customer demand-driven digital operating platform. Installing solar at more than 200 properties, putting us on track to complete at least a 1,000 property installations within the next three years. Completion of over 70% of the Property of Tomorrow enhancement program. Growing NOI by 29% across the 529 acquisition and development properties in our non-same store pool. And driving the industry's largest development pipeline to an excess of $1 billion to be delivered over the next 24 months.
We had a strong operating performance in the first-quarter, particularly with existing customers performing well and same-store move-in volume up nearly 13%. Length of stays are strong and same-store revenues were up nearly 10% Year-over-Year. Our exceptionally large non-same store acquisition and development pool now nearly 25% of the overall portfolio continues to outperform as well.
Fundamentally, self-storage is a need-based business with demand drivers that are multi-dimensional and fluid throughout economic cycles. We also continue to benefit from people spending more time at home, which has increasing permanence with remote and hybrid work here to stay. Additionally, with a return to more seasonal patterns of demand, we are currently also seeing an uptick in move-in activity that has continued into the second-quarter.
We also continue to find good opportunity in development and redevelopment as well, with a vibrant pipeline poised to generate growth for years to come. Our unique ability to weather economic cycles serves us well, particularly, while other developers have slowed their activity due to higher interest rates, cost pressures, difficult municipal processes and concern over the near macro term landscape.
Now I'll turn the call over to Tom to discuss acquisition market and financial performance.