Thornton is a northern Denver-metro suburb that has grown rapidly since the 1980s. It offers mostly suburban residential developments, planned subdivisions with single-family detached homes, townhomes, and some condos. The character is clearly suburban, with large-lot newer homes in some parts. Proximity: about 10-15 miles north of central Denver, offering metro access. Typical existing home pricing: many homes list around US$500,000 or a bit less, depending on size, lot and year built. Building a new home on a newer lot might cost US$450,000-650,000 in current conditions.