Home additions in Rockville run $129 to $500 or more per square foot in 2026, and one detail catches homeowners off guard: Rockville has its own permitting office, separate from Montgomery County. Here’s what Rockville homeowners need to know about real costs and the correct jurisdiction.
Basement remodels in Potomac run $85,000 to $350,000 or more in 2026, and estate-scale lower levels often mean a home theater, a wet bar, and a gym all in one project. Here’s what Potomac homeowners need to know about real costs, HOA review, and what adds the most value.
Basement remodels in Silver Spring run $25,000 to $140,000 or more in 2026, and the process is refreshingly simple: Silver Spring isn’t its own municipality, so there’s just one permitting office to deal with. Here’s what Silver Spring homeowners need to know about real costs and what adds the most value.
Home additions in Chevy Chase run $150,000 to $400,000 or more in 2026, and one step catches nearly every homeowner off guard: Chevy Chase Village requires its own approval before the county ever sees the plans. Here’s what Chevy Chase homeowners need to know.
Home additions in Bethesda run $180,000 to $450,000 or more in 2026, with architectural matching mattering as much as square footage on a $1.4 million-plus property. Here’s what Bethesda homeowners need to know about real costs, permitting, and contractor selection.
Basement remodels in Arlington run $55,000 to $300,000 or more in 2026, and Arlington County requires up to five separate permits for a typical finish. Here’s what Arlington homeowners need to know about real costs, inspections, and what adds the most value.
Local service areas
Browse H&C Construction city hub pages across Montgomery County — local guides with permits, neighborhoods, FAQs, and project photos.
