Barnhouse 3.3

The Barnhouse 3.3 prefab package is $275,429. That includes the panelized building shell, engineered and stamped permit-ready plans, premium windows and exterior doors, and shipping within the lower 48. Your total build also includes site prep, foundation, interior finishing, and mechanical systems installed by your local contractor. Taxes and additional fees may apply.

Turn-key cost depends on your site, region, and finish level, but DEN's fixed-price panelized shell helps you deliver at or below local stick-built rates. A simple way to estimate: start with your budget for a finished home, subtract the $275,429 prefab package, and what remains is your budget for foundation, on-site assembly, finishes, and systems. Our cost calculator helps you get a closer number.

If you're interested but on the fence, the Feasibility Package ($999) is DEN's go/no-go check before you commit. We run a remote review of your parcel, build a line-by-line cost analysis, draft a preliminary site plan placed to scale on your lot, and walk through all of it in a 60-minute working session. The full $999 credits toward your prefab deposit if you move forward. Learn more about Feasibility.

Every DEN prefab project begins with a $10,000 kickoff deposit, fully refundable for 14 days. The deposit reserves your place in the production pipeline and is credited toward your manufacturing contract. After preconstruction, DEN issues a contract defining the full project price and a milestone-based schedule tied to the start of engineering, release of stamped plans, start of fabrication, and shipment.

This FAQ is informational only; your DEN Terms & Conditions and manufacturing contract govern your project.

No. Every DEN prefab package comes with fully engineered, permit-ready stamped plans. With Prefab, DEN provides engineering for the entire structure, so you don't need to separately hire an architect or structural engineer for the building itself. Your local contractor builds to the stamped documents, and local engineering is required only for the site-specific foundation design.

Yes. Design customizations are available for a flat fee of 5% of the prefab package price. DEN reviews every requested change during preconstruction to confirm it integrates cleanly into the panelized building system before your plans are finalized.

The insulated panel shell is typically weathertight in about 5 to 15 days, moved into place by a two-to-three-person crew with standard equipment — no crane required. Total time to completion depends on your local contractor's schedule for foundation, interior finishing, and mechanical systems; most homeowners can expect roughly 3 to 6 months from foundation to move-in.

DEN's building panels use premium steel and closed-cell foam rather than traditional structural insulated panels (SIPs). This delivers superior thermal performance, structural strength, and longevity. Unlike standard SIPs, DEN's panels resist degradation and rot over time, and their insulation values exceed local building codes.

Extremely efficient. The steel and closed-cell foam panel system provides high-performance insulation that exceeds local energy codes. Combined with the ducted heat pump and ERV for heating, cooling, and ventilation — plus an optional wood or gas stove — the Barnhouse 3.3 stays comfortable year-round with low energy use, even in extreme climates.

The Barnhouse 3.3 can be built on a concrete slab, crawl space, or walkout basement. The right choice depends on your local building codes, site and soil conditions, and personal preference, and is finalized during preconstruction. Local engineering produces a stamped foundation design from soil testing and site specifics, while DEN provides a complete engineered plan set from the foundation up, ready for permitting.

Yes. DEN's entire catalogue is designed with both private retreats and hospitality ventures in mind. With three bedrooms, three baths, and a single-floor layout, the Barnhouse 3.3's efficient space planning and striking design make it well suited to the short-term rental market, subject to your local zoning and permitting rules.

Your prefab kit is cleared for shipment once final payment is received. It's then released from the factory and routed to your delivery location, with a confirmed delivery window provided ahead of shipment. See the timeline on the product page for the full sequence.