What Hearthstone Design Build Builds
Hearthstone Design Build is a licensed Class A custom timber frame home builder and design-build firm in Leesburg, Virginia. We design, engineer, permit, and build across Loudoun, Fauquier, and Clarke counties — one firm, one contract, one accountable team from first sketch to final walkthrough.
- Custom Timber Frame Homes — heavy-timber residences with mortise-and-tenon joinery and SIP enclosures; $450–$750+ per square foot finished (ultra-luxury estates exceed $750).
- Timber Frame Barns & Carriage Barns — equestrian, agricultural, and carriage structures; $175,000–$400,000+.
- Timber Frame Pavilions — poolside and entertaining structures; $150,000–$375,000+.
- Estate Outdoor Living — gunite pools, hardscape, outdoor kitchens, and fire features designed as one program.
- Pole Barns & Agricultural Structures — engineered utility buildings for rural parcels.
- Owner Representation — independent oversight for owners running their own build.
Why Design-Build
One contract and one accountable team means budgets are locked before drawings are finalized — fewer scope gaps, fewer change orders, and a single point of responsibility from design through construction.
Explore Each Service
Frequently Asked Questions
- What services does Hearthstone Design Build offer?
- Hearthstone Design Build is a custom timber frame builder first, delivering hand-cut mortise-and-tenon timber frame homes, barns, and pavilions under a full design-build contract. Around that core, we also deliver design-build custom residences, estate outdoor living (pools, hardscaping, outdoor kitchens, fire features), pole-barn agricultural structures, and owner-representation services for complex builds. Every service is delivered by our in-house team out of Leesburg, Virginia.
- What areas does Hearthstone Design Build serve?
- Our primary service area is Loudoun, Fauquier, and Clarke counties in Virginia, with select projects across the greater Northern Virginia region and the Shenandoah Valley. We're headquartered in downtown Leesburg (19 N King St). Rural AR-1 and AR-2 estate builds in Loudoun and Fauquier make up the majority of our residential portfolio, with Clarke completing our primary service area.
- What is design-build, and how is it different from hiring an architect and a general contractor separately?
- Design-build means design, engineering, permitting, and construction are delivered under one accountable contract. In a traditional design-bid-build workflow, the owner signs one contract with the architect, then a second with a general contractor after drawings are complete — leaving the owner in the middle of every scope, cost, and coordination dispute. Design-build collapses that seam: one team owns the outcome from feasibility through certificate of occupancy, and the estimate you approve at preconstruction is the budget the field team is building against.
- How long does a timber frame home take to build?
- From signed design agreement to certificate of occupancy, expect 18–28 months for a full custom timber frame home on rural Virginia land. Design and engineering run 4–7 months, fabrication of the frame by our specialty timber partners runs 3–5 months in parallel with site work, and on-site construction runs another 10–14 months. Simpler hybrid frames and residential additions move faster; complex easement parcels and commercial hospitality projects run longer.
- What does a custom timber frame home cost in Northern Virginia?
- Full-custom timber frame homes in Northern Virginia typically land between $450 and $750+ per finished square foot (ultra-luxury estates exceed $750), depending on species, joinery complexity, enclosure system (SIPs vs. conventional), and finish level. Hybrid timber frames — where exposed timbers concentrate in great rooms, entries, and primary suites — can deliver most of the visual impact at meaningfully lower cost.
- What is owner representation, and when do I need it?
- Owner representation is a service where an experienced construction professional manages your project on your behalf — reviewing budgets, running trade coordination, chairing OAC meetings, tracking allowances and change orders, and enforcing quality standards. Owners typically engage us for owner-rep on multi-phase estate compounds, projects with unusual zoning complexity, or builds above roughly $750K where the schedule and quality risk justify independent oversight.
- How do I start a project with Hearthstone?
- Every project starts with a discovery call, then a paid feasibility review for serious land or build projects. Feasibility covers zoning, site constraints, budget range, and a written go/no-go recommendation. Qualified projects move into a Pre-Construction Services Agreement (PCSA) for schematic design, engineering, and permitting, then into a full design-build construction contract. See our five-step process at /process.
Loudoun County Towns We Serve
- Leesburg, VA — H-1 historic district and AR-1/AR-2 rural overlays
- Middleburg, VA — hunt country equestrian estates
- Purcellville, VA — western Loudoun vineyard-adjacent acreage
- Round Hill, VA — Blue Ridge viewshed parcels
- Hamilton, VA — historic in-town infill and rural acreage
- Loudoun County Hub — county-wide zoning and buildability overview