Loudoun County, Virginia
Hearthstone Design Build in Loudoun County
Hearthstone Design Build is a custom timber frame home builder and design-build firm based in Leesburg, Virginia, serving Loudoun County for estate-scale residential construction, timber frame homes, carriage barns, estate pools, and outdoor living. Hearthstone Design Build is a custom timber frame home builder serving Loudoun County, Virginia. We design and build timber frame homes, carriage barns, equestrian facilities, and timber frame pavilions across Leesburg, Middleburg, Purcellville, Round Hill, Hamilton, and the AR-1/AR-2 rural overlays of western Loudoun.
Every project runs under one contract with one accountable team — design, engineering, permitting, and field execution sequenced in parallel to compress the schedule and lock cost before drawings are finalized.
Loudoun County Zoning & Permitting
Most of our timber frame estate work lands on AR-1 or AR-2 acreage — minimum lot sizes, well and septic, VDOT entrance permits, and Chesapeake Bay Act stormwater drive the preconstruction schedule. Read the full breakdown in our Loudoun Zoning Intelligence hub and the AR-1 vs AR-2 vs A-3 zoning comparison.
Feasibility reviews for Loudoun County parcels cover buildable envelope (setbacks, easements, slopes, floodplain), soil suitability for septic, well placement, VDOT entrance permitting, and stormwater obligations. We sequence these in parallel with schematic design so the permit clock starts as early as possible.
Services in Loudoun County
Pricing & Timeline
Custom estate homes in Loudoun County typically run $450–$750+ per square foot fully finished (ultra-luxury estates exceed $750), with projects between $1.5M and $10M+. Timber frame homes sit at the higher end of that range. Total schedules run 14–22 months from contract to certificate of occupancy, with permitting timelines specific to Loudoun County review cycles.
See our cost-to-build Northern Virginia guide for a full cost breakdown and our design-build vs. general contractor comparison for delivery-model context.