Total loans and leases were $13.3 billion as of June 30, 2022, an increase of $300.8 million or 2% from December 31, 2021. The increase in total loans and leases was primarily due to increases in commercial real estate loans and residential mortgage loans, partially offset by a decrease in PPP loans, which are included in commercial and industrial loans, and decreases in construction loans and consumer loans.
Commercial and industrial loans are made primarily to corporations, middle market and small businesses for the purpose of financing equipment acquisition, expansion, working capital and other general business purposes. We also offer a variety of automobile dealer flooring lines to our customers in Hawaii and California to assist with the financing of their inventory. Commercial and industrial loans were $1.9 billion as of June 30, 2022, a decrease of $145.0 million or 7% from December 31, 2021. This decrease was primarily due to a decrease in PPP loans of $173.2 million during the six months ended June 30, 2022.
Commercial real estate loans are secured by first mortgages on commercial real estate at loan to value (“LTV”) ratios generally not exceeding 75% and a minimum debt service coverage ratio of 1.20 to 1. The commercial properties are predominantly apartments, neighborhood and grocery anchored retail, industrial, office, and to a lesser extent, specialized properties such as hotels. The primary source of repayment for investor property and owner-occupied property is cash flow from the property and operating cash flow from the business, respectively. Commercial real estate loans were $4.0 billion as of June 30, 2022, an increase of $317.2 million or 9% from December 31, 2021. This increase was primarily due to an increase in U.S. Mainland commercial real estate loans during the six months ended June 30, 2022.
Construction loans are for the purchase or construction of a property for which repayment will be generated by the property. Loans in this portfolio are primarily for the purchase of land, as well as for the development of commercial properties, single family homes and condominiums. We classify loans as construction until the completion of the construction phase. Following completion of the construction phase, if a loan is retained by the Bank, the loan is reclassified to the commercial real estate or residential real estate classes of loans. Construction loans were $727.8 million as of June 30, 2022, a decrease of $86.2 million or 11% from December 31, 2021. The decrease in construction loans was primarily due to payoffs of several large projects during the six months ended June 30, 2022.
Residential real estate loans are generally secured by 1-4 unit residential properties and are underwritten using traditional underwriting systems to assess the credit risks and financial capacity and repayment ability of the consumer. Decisions are primarily based on LTV ratios, debt-to-income (“DTI”) ratios, liquidity and credit scores. LTV ratios generally do not exceed 80%, although higher levels are permitted with mortgage insurance. We offer fixed rate mortgage products and variable rate mortgage products. Since our transition from LIBOR in late 2021, we now offer variable rate mortgage products based on SOFR with interest rates that are subject to change every six months, after the third, fifth, seventh or tenth year, depending on the product. Prior to this, we offered variable rate mortgage products based on LIBOR with interest rates that were subject to change every year after the first, third, fifth or tenth year, depending on the product. Variable rate residential mortgage loans are underwritten at fully-indexed interest rates. We generally do not offer interest-only, payment-option facilities, Alt-A loans or any product with negative amortization. Residential real estate loans were $5.2 billion as of June 30, 2022, an increase of $224.4 million or 5% from December 31, 2021.
Consumer loans consist primarily of open- and closed-end direct and indirect credit facilities for personal, automobile and household purchases as well as credit card loans. We seek to maintain reasonable levels of risk in consumer lending by following prudent underwriting guidelines, which include an evaluation of personal credit history, cash flow and collateral values based on existing market conditions. Consumer loans were $1.2 billion as of June 30, 2022, a decrease of $22.9 million or 2% from December 31, 2021.
Lease financing consists of commercial single investor leases and leveraged leases. Underwriting of new lease transactions is based on our lending policy, including but not limited to an analysis of customer cash flows and secondary sources of repayment, including the value of leased equipment, the guarantors’ cash flows and/or other credit enhancements. No new leveraged leases are being added to the portfolio and all remaining leveraged leases are running off. Lease financing was $244.7 million as of June 30, 2022, an increase of $13.3 million or 6% from December 31, 2021. The increase was primarily due to the closing of several large lease transactions during the six months ended June 30, 2022.
See “Note 3. Loans and Leases” and “Note 4. Allowance for Credit Losses” contained in our unaudited interim consolidated financial statements and the discussion in “Analysis of Financial Condition — Allowance for Credit Losses” of this MD&A for more information on our loan and lease portfolio.