Third-party real estate services revenue, including reimbursements, decreased by approximately $4.6 million, or 17.2%, to $22.2 million in 2022 from $26.7 million in 2021. The decrease was primarily due to (i) a $2.2 million decrease in development fees related to the timing of development projects, (ii) a $954,000 decrease in reimbursement revenue and (iii) a $716,000 decrease in asset management fees due to the sale of assets within the JBG Legacy Funds.
Depreciation and amortization expense decreased by approximately $7.2 million, or 12.7%, to $49.5 million in 2022 from $56.7 million in 2021. The decrease was primarily due to an $8.7 million decrease related to the Disposed Properties and a $1.7 million decrease related to 2345 Crystal Drive primarily due to the amortization and disposal of certain tenant improvements in 2021. The decrease in depreciation and amortization expense was partially offset by a $2.9 million increase related to The Batley.
Property operating expense increased by approximately $445,000, or 1.3%, to $35.4 million in 2022 from $35.0 million in 2021. The increase was primarily due to (i) a $2.8 million increase in property operating expenses across our portfolio, primarily utility, and repairs and maintenance expenses, (ii) an $875,000 increase related to The Batley, (iii) an $821,000 increase related to higher occupancy at several recently developed properties (4747 Bethesda Avenue, West Half, The Wren, 900 W Street and 901 W Street), (iv) a $772,000 increase at properties in our development pipeline due to an increase in marketing expenses and (v) a $552,000 increase related to technology initiatives in National Landing. The increase in property operating expense was partially offset by a $5.6 million decrease related to the Disposed Properties.
Real estate tax expense decreased by approximately $3.6 million, or 19.5%, to $14.9 million in 2022 from $18.6 million in 2021. The decrease was primarily due to a $3.4 million decrease related to the Disposed Properties.
General and administrative expense: corporate and other increased by approximately $887,000, or 6.4%, to $14.8 million in 2022 from $13.9 million in 2021. The increase was primarily due to an increase in compensation expense.
General and administrative expense: third-party real estate services decreased by approximately $1.4 million, or 5.5%, to $24.1 million in 2022 from $25.6 million in 2021. The decrease was primarily due to a decrease in reimbursable expenses, partially offset by an increase in compensation expense.
General and administrative expense: share-based compensation related to Formation Transaction and special equity awards decreased by approximately $2.9 million, or 64.5%, to $1.6 million in 2022 from $4.4 million in 2021. The decrease was primarily due to the graded vesting of certain awards issued in prior years, which resulted in lower expense as portions of the awards vested.
Transaction and other costs of $2.0 million in 2022 included (i) $854,000 of expenses related to completed, potential and pursued transactions, (ii) $727,000 of integration and severance costs and (iii) $406,000 of demolition costs related to 223 23rd Street and 2250/2300 Crystal Drive. Transaction and other costs of $2.3 million in 2021 included (i) $1.6 million of expenses related to completed, potential and pursued transactions, (ii) $439,000 of demolition costs related to 2000/2001 South Bell Street and (iii) $222,000 of integration and severance costs.
Income (loss) from unconsolidated real estate ventures decreased by approximately $6.1 million, or 153.3%, to a loss of $2.1 million for 2022 from income of $4.0 million in 2021. The decrease was primarily due to a $4.3 million reduction in gains on sale of real estate related to various asset sales in 2022 compared to 2021 and a $1.8 million loss on the extinguishment of debt related to a property that was sold in 2022.
Interest expense decreased by approximately $732,000, or 4.4%, to $16.0 million in 2022 from $16.8 million in 2021. The decrease in interest expense was due to a $2.0 million increase in the fair value of our interest rate caps due to rising interest rates and a $1.0 million decrease related to the Disposed Properties. The decrease in interest expense was partially offset by (i) a $1.1 million increase due to new mortgage loans entered into in 2021 at 1225 S. Clark Street and 1215 S. Clark Street, (ii) a $445,000 increase related to a higher average outstanding balance on our revolving credit facility, (iii) a $276,000 increase at 4747 Bethesda due to rising interest rates and (iv) a $199,000 increase due to an increase in rates related to the Tranche A-1 Term Loan.