Thanks, Tom, and good morning, everyone. Third quarter transaction volume picked up from second quarter, but still remains down significantly year-over-year, and we expect the volume to continue to be slow into next year. Because of the desirability of our markets, we continue to see robust buyer demand for existing assets within our footprint. This strong demand, coupled with very attractive debt rates, has further compressed cap rates, and in some cases, is resulting in pricing above pre-COVID levels, despite lower NOI's. We continue to expect our best buying opportunities on existing assets to be owned properties and their initial lease-up, where we believe pressure is likely to continue to build through the winter.
With that said, we've only seen a few lease-up opportunities come up and pricing trends are mixed. All cash buyers and strong sponsors with established agency relationships remain the most aggressive bidders, while leverage buyers are having more difficulty obtaining financing on prestabilized properties. We do expect cap rates within our footprint to remain at historical lows and perhaps continue to trend lower, likely making acquisitions a smaller contributor to our external growth for some time.
As mentioned last quarter, we expect our in-house development and our prepurchase platform to be significant contributors to our external growth going forward and anticipate starting construction on a number of these projects later this year and into next. While cap rates on acquisitions have compressed, yields on developments remain attractive. Rents and occupancy are holding up in our markets and despite cost pressure in a couple of line items, especially lumber, developments continue to underwrite to a positive spread to cap rates on stabilized properties.
As shown in our supplemental, we have 6 development projects that are underway and all remain on budget and on-time, despite working through some minor supply chain issues. Subsequent to quarter end, we started construction on the land parcel in the northern suburb of Austin that we purchased back in January. This 350 unit project should begin leasing in the first half of 2022, when we expect leasing conditions to be significantly stronger than they are today.
While early reports show 2021 deliveries in line with this year's levels, data and permitting and construction starts show a material decline since March and point to a drop in future deliveries beginning late next year and into 2022, lining up well with the expected delivery of any new development we start.
That's all I have in the way of prepared comments. So with that, I'll turn it over to Al.