Nicholas Hilton
Management
Thank you, Mike. Across our portfolio, we posted an unusually slow quarter for Q3 2019, signing just over 69,000 square feet of transactions, resulting in our Core and Waterfront portfolio finishing at 80.8% leased at quarter end. Of these transactions, approximately 62% or 43,000 square feet were new leases and 38% or 26,000 square feet were in place renewals. Across all core markets, our rents on Q3 deals rolled up 10.9% on a cash basis and 22.4% on a GAAP basis, and we committed $5.62 per square foot per year of lease term.
As we turn our focus to the specific markets, the Waterfront closed just over 30,000 square feet of new transactions, finishing the third quarter 77.9% leased, and we continue to see a positive rent push with increases of 18.8% on a cash basis and 36% on a GAAP basis.
Looking at our current activity level, we have approximately 600,000 square feet of new transactions currently in active negotiations across our diverse tenancy mix including financial services, co-working and shipping, just to name a few. We also continue to have strong tour activity with positive responses to the improvements we have made and continue to make within our Waterfront development.
Looking ahead, we have a limited amount of lease rollover the next 15 months with only 61,000 square feet expiring in 2020. As a result, we expect to make continued gains as we improve the overall occupancy levels on the Waterfront.
Our suburban portfolio also posted an unusually slow third quarter. Specifically, we executed approximately 34,000 square feet of transactions. However, although our overall transaction square footage was light, we continue to see a positive rent push with increases of 1.9% on a cash basis and 7.8% on a GAAP basis, and our starting rents averaged above $32 a square foot.
Turning to 2020, we have over 487,000 square feet expiring that year, of which we know approximately 26% or 131,000 square feet will vacate. We are confident in addressing the balance of this rollover as we are already in active negotiations with approximately 225,000 square feet of transactions across the suburban portfolio.
With that, I'd like to turn the call over to Marshall.