Nicholas Hilton
Management
Thank you, Mike. Across our portfolio, we posted a solid fourth quarter in 2019, signing just over 169,000 square feet of transactions which resulted in our core and Waterfront portfolio finishing at 80.7% leased at year-end. Of these transactions, approximately 30% or 51,000 square feet were new leases. And 70%, or 118,000 square feet were in place renewals. Across all core markets, our rents on Q4 deals rolled up 6.5% on a cash basis, and 19.9% on a GAAP basis. And we committed $5.41 per square foot per year of lease term. In comparison to last year, our rents on 2018 deals rolled up 6.9% on a cash basis and 23.1% on a GAAP basis. And we committed $5.88 per square foot per year of lease term.
Looking back at 2019 as a whole, our core and Waterfront portfolio saw over 648,000 square feet of transactions signed, with overall cash and GAAP rollups at 8.1% and 19.1% respectively. We do not formally provide guidance on total leasing activity. We beat our internal projections of approximately 584,000 square feet by 11%.
As we turn our focus to the specific markets, the Waterfront closed just over 27,000 square feet of new transactions, finishing the fourth quarter at 77.8% leased. And we continue to see a positive rent push with increases of 17.1% on a cash basis, and 27% on a GAAP basis. Looking at our current activity level, we have approximately 500,000 square feet of new transactions currently in active negotiations across a diverse tenancy mix, including financial services, pharmaceutical, co-working and shipping to name a few.
The improvements we have made and continue to make within our Waterfront development are translating to steady interest in touring activity. Looking ahead, we have a limited amount of lease roll with only 61,000 square feet expiring in 2020. And as a result, we expect to make continued gains as we improve the overall occupancy levels on the Waterfront.
Our Suburban portfolio also posted a strong fourth quarter. Specifically, we executed over 141,000 square feet of transactions, achieving a positive rent push with increases of 5.3% on a cash basis, and 19.2% on a GAAP basis. Turning to 2020, we have over 403,000 square feet expiring in our Suburban portfolios of which over 128,000 square feet are included in our Morris County portfolios, which will be sold this year.
Of the 275,000 square feet remaining in our Suburban portfolios, we know that 59,000 square feet, or 21%, will vacate. We're confident in addressing the balance of this rollover as we are already in active negotiations with over 229,000 square feet of transactions across the Suburban portfolio.
With that, I'd like to turn the call over to Marshall.