Hillwood broke ground last week on one of the final phases of its 2,400-acre Twin Creeks residential community in Allen. The next phase includes 40 lots in the Lexington Village section of Twin Creeks, which is the largest master-planned community in Allen. Homes on the new lots will be built by Sanders Custom Homes with a $500k to $900k price tag. The lots are expected to be completed by the end of the year. After this phase, only 59 more lots will remain to be developed in Twin Creeks; 30 of those lots are in the Lexington Village section. The remaining lots are in the Wimberley Place section, where homes start at $1 million.