30, 2019. During the nine months ended September 30, 2020, loans were sold resulting in a gain on sales of SBA loans of and $467,000, compared to $331,000 for the nine months ended September 30, 2019.
The Company’s factoring receivables are from the operations of Bay View Funding whose primary business is purchasing and collecting factored receivables. Factored receivables are receivables that have been transferred by the originating organization and typically have not been subject to previous collection efforts. These receivables are acquired from a variety of companies, including but not limited to service providers, transportation companies, manufacturers, distributors, wholesalers, apparel companies, advertisers, and temporary staffing companies. The portfolio of factored receivables is included in the Company’s commercial loan portfolio. The average life of the factored receivables was 37 days for the first nine months of 2020 and 2019. The balance of the purchased receivables was $47.7 million at September 30, 2020, compared to $44.2 million at September 30, 2019 and $46.0 million at December 31, 2019.
The commercial loan portfolio increased $66.5 million, or 13%, to $574.4 million at September 30, 2020 from $507.9 million at September 30, 2019 and decreased ($28.9) million, or (5%), from $603.3 million at December 31, 2019. C&I line usage was 28% at September 30, 2020, compared to 35% at September 30, 2019 and December 31, 2019. In addition, the Company had $323.6 million in PPP loans at September 30, 2020.
The Company’s CRE loans consist primarily of loans based on the borrower’s cash flow and are secured by deeds of trust on commercial property to provide a secondary source of repayment. The Company generally restricts real estate term loans to no more than 75% of the property’s appraised value or the purchase price of the property depending on the type of property and its utilization. The Company offers both fixed and floating rate loans. Maturities for CRE loans are generally between five and ten years (with amortization ranging from fifteen to twenty five years and a balloon payment due at maturity), however, SBA and certain other real estate loans that can be sold in the secondary market may be granted for longer maturities.
The CRE owner-occupied loan portfolio increased $125.3 million or 29% to $561.5 million at September 30, 2020, from $436.2 million at September 30, 2019, and increased $12.6 million, or 2% from $548.9 million at December 31, 2019. CRE non-owner occupied loans increased $173.2 million or 32% to $713.6 million, compared to $540.4 million at September 30, 2019, and decreased ($54.2) million, or (7%) from $767.8 million at December 31, 2019. At September 30, 2020, there was 44% of the CRE loan portfolio secured by owner-occupied real estate.
The Company’s land and construction loans are primarily to finance the development/construction of commercial and single family residential properties. The Company utilizes underwriting guidelines to assess the likelihood of repayment from sources such as sale of the property or availability of permanent mortgage financing prior to making the construction loan. Construction loans are provided only in our market area, and the Company has extensive controls for the disbursement process. Land and construction loans increased $46.0 million, or 48%, to $142.6 million at September 30, 2020, compared to $96.6 million at September 30, 2019, and decreased $(4.6) million, or (3%), from $147.2 million at December 31, 2019.
The Company makes home equity lines of credit available to its existing customers. Home equity lines of credit are underwritten initially with a maximum 75% loan to value ratio. Home equity lines of credit increased $25.7 million, or 30%, to $111.5 million at September 30, 2020, compared to $85.8 million at September 30, 2019, and decreased ($40.3) million, or (27%), from $151.8 million at December 31, 2019.
Residential mortgage loans decreased ($1.5) million, or (2%), to $91.1 million at September 30, 2020, compared to $92.6 million at September 30, 2019, and decreased ($9.7) million, or (10%) from $100.8 million at December 31, 2019.
Additionally, the Company makes consumer loans for the purpose of financing automobiles, various types of consumer goods, and other personal purposes. Consumer loans generally provide for the monthly payment of principal and interest. Most of the Company’s consumer loans are secured by the personal property being purchased or, in the instances of home equity loans or lines, real property.
With certain exceptions, state chartered banks are permitted to make extensions of credit to any one borrowing entity up to 15% of the bank’s capital and reserves for unsecured loans and up to 25% of the bank’s capital and reserves for secured loans. For HBC, these lending limits were $96.1 million and $160.2 million at September 30, 2020, respectively.