David V. Auld
President and Chief Executive Officer at D.R. Horton
Thank you, Jessica, and good morning.
I'm pleased to also be joined on this call by Mike Murray and Paul Romanowski, our Executive Vice Presidents and Co-Chief Operating Officers; and Bill Wheat, our Executive Vice President and Chief Financial Officer.
The D.R. Horton team delivered an outstanding first quarter, highlighted by a 48% increase in earnings to $3.17 per diluted share. Our consolidated pre-tax income increased 45% to $1.5 billion on a 19% increase in revenues, and our consolidated pre-tax profit margin improved 380 basis points to 21.2%.
Our homebuilding return on inventory for the trailing 12-months ended December 31, was 38.5%, and our consolidated return on equity for the same period was 32.4%. These results reflect our experienced teams and production capabilities, and our ability to leverage D.R. Horton scale across our broad geographic footprint. Even with the recent rise in mortgage rates, housing market conditions remain very robust and we are focused on maximizing returns while continuing to increase our market share.
There are still significant challenges in the supply chain, including shortages in certain building materials and a very tight labor market. We are focused on building the infrastructure and processes to support a higher level of home storage, while working to stabilize and then reduce construction cycle times to our historical norms. After starting construction on 25,500 homes this quarter, our homes and inventory increased 30% from a year ago to 54,800 homes, with only 1,000 unsold completed homes across the nation.
Our January home starts and net sales orders were in line with our targets, and we are well positioned to achieve double-digit volume growth in 2022. We believe our strong balance sheet, liquidity and low leverage position us very well to operate effectively through changing economic conditions. We plan to maintain our flexible operational and financial position by generating strong cash flows from our homebuilding operations, while managing our product offerings, incentives, home pricing, sales pace and inventory levels to optimize returns.
Mike?