The firm revealed it was now on course to deliver almost 5,500 frames, a rise of nearly a third on last year at its Space4 factory.
Persimmon said timber frame designs helped it to fast-track construction to meet rising demand and lower production costs.
A trading statement for the third quarter this morning said: “Our Space4 new home timber frame factory continues to increase supply to the group, which is supporting a swifter response to the increase in market demand but is also becoming increasingly cost advantageous.”
“We remain confident of delivering further growth in group operating profits in the second half of the year from both improved gross margins and tightly controlled overheads.
“With our new site openings, land recoveries continue to improve and with increased production volumes we are capturing further build efficiencies.”
But the top three ranked house builder also warned planning was hindering progress on opening new sites.
“Despite the ongoing improvements to the planning system, opening new development sites without undue delay continues to be one of the industry’s main constraints.
“While we have successfully opened 80 of the 100 new sites planned for the second half of the year, our desire to modestly increase our overall outlet numbers remains a challenge,” warned Persimmon.