Thank you, J.J. Our first quarter results clearly demonstrate the operational improvements that David and J.J. described. For the first quarter, we achieved revenues of $27.7 million, an increase of approximately $1.5 million over the first quarter last year after adjusting for a $400,000 noncash and nonrecurring straight-line rent write-off from a lease restructuring at the Tribeca House property and a $300,000 decrease from the repositioning of units at 10 West 65th Street.
We see strong NOI in the first quarter of $14.7 million and excellent AFFO in the first quarter of $5.3 million or $0.12 per share, an approximate 61% increase over AFFO for the first quarter last year. Our strong result this quarter versus last year reflects higher revenue, controlled operating expenses in real estate taxes and insurance and lower G&A.
Some additional detail on the year-over-year revenue increase. At Flatbush Gardens, revenue has increased 8.2% year-on-year, reflecting the steadily increasing rents described by J.J. and nearly 100% leased occupancy. At Tribeca House, residential revenues increased 6.8% year-on-year primarily driven by gains in occupancy and, to a lesser extent, rent per square foot. Commercial revenues, excluding the nonrecurring and noncash straight-line rent adjustment, were slightly higher due to scheduled rent adjustments.
At the Aspen property, residential revenues increased 3.3% year-on-year, reflecting increasing rents and continuously high occupancy in the 98% range.
At the 250 Livingston Street and 141 Livingston Street, office properties leased to the departments of New York City, revenues were slightly higher, reflecting higher property tax and operating expense reimbursements. Additionally, at the 250 Livingston Street property, as David mentioned earlier, we just entered into a new lease, which we expect will increase our annual revenues by approximately $5 million beginning August 2020.
At 141 Livingston Street, we have a contracted upcoming 25% rent increase to $50 per square foot at the end of 2020, assuming the city remains in the building at that time, equal to a $2.1 million annual rent increase.
The 10 West 65th Street property acquired in October contributed approximately $466,000 of revenue in the first quarter, a decrease of $286,000 from last year. As we mentioned earlier, this reflects taking off-line 40 units previously leased to the prior owner, Touro College, on February 1, 2019, offset somewhat by bringing online 11 units that we created from the taken space. The 40 units being repositioned are currently 65% leased, and we expect to complete the repositioning in the third quarter.
Lastly, in 107 Columbia Heights, we expect to begin recording leasing revenue during June as we bring the property online. We will also begin recording expenses on a phased basis as sections become available for leasing. We will report the effectiveness and overall results as we progress during the year to stabilization and gain more clarity.
Looking at the expense side year-on-year. Property operating expenses increased by $306,000 year-on-year in the first quarter primarily due to higher collection expense at the Flatbush Gardens property, which were excellent but not to the extent as last year. Real estate taxes and insurance increased by $383,000 due to property tax increases begun last year in the new -- in that fiscal year and insurance cost increases as a result of higher loss experienced.
General and administrative expenses decreased in the quarter year-on-year by $1.5 million due to lower LTIP amortization expense from vested LTIPs, lower cash executive bonus costs and lower legal costs.
Interest expense decreased by approximately $270,000 in the quarter year-on-year mostly due to lower cash interest expense. This reflects lower interest expense from the refinancing in February 2018, offset by higher expense from the refinancing in December 2018.
Depreciation and amortization expense was flat on the quarter year-on-year, reflecting an increase in the depreciation component from fixed asset additions during the year, offset by cessation of certain purchased accounting cost amortization at the 10 West 65th Street acquisition.
During the first quarter 2019, we incurred $10.9 million of capital spending, over 62% of which related to bringing Columbia Heights online. The remaining amounts included expenditures for unit buildout at 10 West 65th Street, property renovations at Tribeca House and Flatbush Gardens and New York City local law requirements at Tribeca House and 250 Livingston Street.
Other financing costs in the first quarter of 2019 were -- sorry, 2018 were approximately $7 million, all relating to the refinancings at the Flatbush Gardens and Tribeca House properties.
Lastly, we are announcing a dividend of $0.095 per share and unit for the first quarter of 2019. This dividend will be paid on May 29, 2019, to shareholders of record on May 21, 2019.
Additionally, as we announced, I will be retiring at the end of June. It has been a real pleasure and opportunity to work with David and the whole team at Clipper, including J.J. and Mike, in addition to the company's distinguished Board. I believe the organization is well set up for the future and believe the team is well positioned to take advantage of the many opportunities they have to grow shareholder value. Mike and I and the team will work hard to ensure a smooth transition.
Let me now turn the call back to David for concluding remarks.