Our Office Locations in Delaware Green Diamond Builders > Our Office Locations in Delaware We are located in Felton at 24 Memorial Avenue and in Dover at 22 Salt Creek Drive. Felton – Office Hours Monday – Thursday 9AM – 5PM Friday 9AM – 2PM Saturday By Appointment Sunday Closed Driving Directions to Sales Center in Felton, DE Dover – Office Hours Monday – Friday 10AM – 5PM Saturday By Appointment Sunday Closed Driving Directions to Our Sales Center in Dover, DE