What happens when a custom home builder builds his own house? In the case of Loel Fenwick, owner of Tanglefoot Master Builders, the result is an 11,000-square-foot retreat on Priest Lake, Idaho that reads more like a giant tree house than a conventional residence. Designed by architect James Cutler, this home on a 400-acre wildlife preserve near the Canadian border is a case study in how thoughtful design can honor the natural environment rather than dominate it. For builders looking to elevate their craft, the lessons from this project extend far beyond aesthetics. The home demonstrates principles every builder can apply, whether working on a custom estate or a production home. For more on how high-end residential projects balance design and function, see our article on luxury custom home construction design principles.
Site Integration and the Philosophy of Invisibility
The first and most striking decision Fenwick made was to design the home so it would not be visible as a single mass from any angle. “We wanted it to be tucked into the trees so that one could go by the house on a boat and not even know that there is a house there at all,” Fenwick explains. This philosophy of architectural invisibility shaped every subsequent decision about layout, materials, and orientation.
The Three-Block Strategy
Rather than building one massive structure, the home is split into three distinct blocks. Each block is oriented to capture different views of the lake and the surrounding 8,000-foot Selkirk Mountains:
- The Summer Block contains the conference room below and the master bedroom above. This section is closed off during winter when Fenwick and his wife move into the main block.
- The Wintergarten is the glass-walled middle section used as a family gathering space or for professional retreats. A bridge on the second story connects it to the other two sections.
- The Main Block houses the sitting room, kitchen, scullery, and pantry on the first floor, with a mudroom and children’s bedrooms above.
This approach accomplished two goals. First, it broke up the visual mass of an 11,000-square-foot structure so no single viewpoint reveals the whole house. Second, it allowed each block to respond independently to site conditions, such as solar orientation, prevailing winds, and tree cover. The result is a home that feels like a small settlement in the forest rather than one oversized building.
The Arrival Sequence
Fenwick deliberately designed the approach to the home to set a contemplative tone. Several tight roads lead to the property, with a route that appears to end in a dead end. A tiny road leads to the garage, but Fenwick urges visitors to park and take a 150-foot walkway to the main entrance. This pedestrian approach forces a transition from the speed of the car to the pace of the forest, preparing guests for the experience of the house itself. This principle of controlled arrival is widely applicable: any home benefits from a sequence of spaces that gradually shift the occupant from public to private, from outside to inside.
Exposed Structure as Design Language
Perhaps the most unconventional decision in this project was to leave nearly all of the structural framing exposed. Fenwick describes the home as “a piece of structural artwork” and deliberately avoided covering the frame with drywall. This approach required a level of craftsmanship that most residential projects never demand, because every joist, beam, and column had to be visually perfect.
Material Selection for Exposed Framing
Fenwick chose fir and larch for the exposed framing. These two species could handle the structural requirements while also delivering the visual warmth the design called for. Every piece of lumber was sanded and received at least four coats of finish before being cut and again after installation. This level of attention to raw materials is rare in conventional construction, where framing is hidden behind drywall and never seen again.
For builders considering exposed structural elements, the key takeaways are straightforward:
- Select species that are both structurally adequate and visually appealing. Fir, larch, cedar, and Douglas fir are strong candidates.
- Pre-finish all lumber before cutting to ensure end-grain protection and a consistent appearance.
- Apply a second round of finish after installation to cover cut ends and field adjustments.
- Schedule framing with extra care for sequencing and protection from weather during construction.
- Work with an engineering team that understands exposed structure and can design connections that are both strong and beautiful.
Building in Layers
Fenwick describes the construction approach as building in layers. Panels and closets form the closest thing this home has to traditional walls. In many places, framing is visible where it starts at the floor and continues up, disappears momentarily behind drywall panels, and emerges again on its way to the roof. This layered approach means the structure itself tells the story of how the building was made. The careful selection of products and materials is essential to achieving this kind of result; our article on smart product selection for durable homes covers material specification strategies in more depth.
Structural Engineering and Custom Components
One of the most challenging aspects of this project was engineering a structure that deliberately broke every conventional framing rule. “Every time we tried to get custom builders to look at it they said, ‘This is not the way you do it,’” Fenwick recalls. Some contractors even doubted the home could be built or whether it would be structurally sound. Fenwick brought in some of the best structural engineers in the country to integrate the architecture with the structural demands of the enormous laminated beams and long-span framing required by the design.
Custom Components Everywhere
Because the home’s design was so unconventional, standard components rarely fit. Everything from door handles to locks to windows had to be custom-specified or custom-fabricated. This is a critical lesson for any builder attempting a signature project: custom architecture demands custom components, and that means longer lead times, higher costs, and more coordination with specialized suppliers.
Cost and Complexity Comparison
| Dimension | Conventional Approach | Fenwick Home Approach |
|---|---|---|
| Framing treatment | Covered with drywall | Exposed as design element |
| Component sourcing | Standard catalog items | Custom fabrication required |
| Structural visibility | Hidden within walls | Fully visible, carefully finished |
| Massing strategy | Single building mass | Three distinct blocks |
| Site integration | Clear-cut and build | Work around existing trees |
| Engineering complexity | Standard engineering | Specialized structural engineering |
| Finish schedule | One coat of primer | Four coats on exposed lumber |
Builders planning their own projects should weigh these differences carefully. The exposed-structure approach demands more from every trade involved and typically increases both material costs and construction time. However, for clients who value architectural expression and a deep connection to the building process, the result can be transformative. For those looking to build homes that truly feel like home, the architectural thinking behind projects like this one parallels the principles outlined in our piece on designing homes that feel like home from narrow-lot lessons.
Designing for the Full Life Cycle of a Family
One of the most impressive features of this home is how it anticipates the changing needs of Fenwick’s family. The four children each have a bedroom, bathroom, and loft. Some lofts are positioned in open space so a child can be 30 feet high and look down through the entire house. “I suppose it’s like being in a giant birdcage,” Fenwick says.
Future-Proofing with Removable Partitions
Between two of the children’s bedrooms, a removable partition allows four bedrooms to be converted into two large suites when the children move out and return as adult guests. This kind of forward-looking design is rare in residential construction, where most homes are built for the family’s current configuration and become obsolete as needs change. Builders who incorporate flexible partition systems, multi-purpose rooms, and adaptable floor plans give their clients homes that remain functional for decades rather than years.
Seasonal Zoning for Energy Efficiency
The three-block strategy also supports seasonal zoning. The summer block is closed off during winter, reducing the heated area of the home significantly. This is a built-in energy efficiency measure that requires no mechanical systems, no smart home technology, no added insulation — only smart architectural planning. Builders can apply the same principle by designing homes with zoned floor plans that allow occupants to close off unused wings or floors during seasons when they are not needed. Combined with green building strategies such as high-performance windows, continuous insulation, and air sealing, this approach dramatically reduces operating costs without sacrificing comfort. For more on how to balance sustainability with budget constraints, see our article on green building on a budget with cost-effective strategies.
The Wildlife Preserve as Context
The 400-acre wildlife preserve setting is not incidental to the design. It is the reason the home exists in its current form. Fenwick’s commitment to coexisting peacefully with the land and animals shaped every decision, from the choice to break up the mass of the home to the restrained exterior palette that helps the buildings recede into the forest. Builders working on environmentally sensitive sites can learn from this example: a home that respects its context is not only more responsible but often more beautiful and more valuable.
Key Takeaways for Builders
The Fenwick home on Priest Lake is not a template that can be copied directly — few clients will ask for an 11,000-square-foot exposed-frame retreat on a private wildlife preserve. But the principles that guided its design apply at any scale:
- Site-first thinking. Let the land dictate the form of the home, not the other way around. Break up massing to preserve views and tree cover.
- Structural honesty. When structure is exposed, craftsmanship becomes a defining feature. Invest in material quality and finish standards that will be on permanent display.
- Custom engineering. Unconventional designs require unconventional engineering. Partner with engineers who understand architectural intent, not just code minimums.
- Future adaptability. Design for how a family will use the home in 10 or 20 years, not just today. Removable partitions, zoned heating, and flexible room configurations add long-term value.
- Controlled arrival. The experience of approaching a home matters as much as the home itself. Design arrival sequences that transition occupants from the public realm to the private sanctuary of the home.
Loel Fenwick’s home is proof that when builders push beyond conventional methods and collaborate with visionary architects and engineers, the result can be something that transcends shelter and becomes a genuine work of art — one that coexists with nature rather than consuming it.