Lake Forest will get 144 new townhomes with prices starting under $600,000.

Silveroak is Landsea Homes’s latest addition to its 543-home IronRidge community in Portola Hills. The builder has begun pre-sales for the project, which offers three plans ranging in size from 1,311 to 1,693 square feet of space with up to three bedrooms, three bathrooms, an outdoor deck and a two-car garage. Model homes will be ready for viewing later this year.

Landsea says pricing will start from the high-$500,000s, “a very attractive price-point for the region,” said Tom Baine, president of the company’s Southern California division.