Oak Knoll 3-Story Custom Home

Innovative Top-Down Solutions

Commercial Project | Petaluma, CA

Aspect by Lafferty Communities consists of 18 custom residences nestled among the scenic hills of Sonoma County. As multiple phases of the development unfolded, the steep terrain proved to be challenging for site preparation and slope stabilization, particularly for Lot 12 on Oak Knoll Court, a site planned for a spacious 5,578-square-foot home with three stories, a 5-car garage, and outdoor living space.

When other companies declined to build on Lot 12, Lafferty Communities called CalWalls. While our team agreed that a standard spread-foot, bottom-up approach was not feasible, we brought the expertise and technology to build an innovative solution that saved time and money. Using GS2 block built on helical barrels, with Geobrugg Tecco mesh anchored with helical tieback stabilization drilled 30+ feet into the hillside, our crews were able to start with the top walls and work down. The precise, vertical cuts involved with this approach required substantially less excavation, backfill, and clearance for each of the 20+-foot walls.

Services

Alternative Wall System Analysis
Excavation and Material Off-Loading
Drilling for Helical Piles, Barrels, Tiebacks
Retaining Wall Construction
Weekly Project Reviews with Client

Products

GS2 block
Helical Tieback Stabilization
Helical Barrels
Geobrugg Tecco Mesh

Technology
& Equipment

Hyundai HX135 Crawler Excavator with REV Drill
Bobcat S130 Skid-Steer Loader
Forklift with REV Drill
GS2 Block

Dig a Little Deeper

Explore additional project photos to view the exceptional craftsmanship that defines our work, inspire your own retaining wall project, and envision the possibilities for your outdoor space.

<div class="project-gallery-modal" data-post-id="2270"> <button class="project-gallery-modal-close button-close color-greyexlgt"><span class="sr-only">Close</span></button> <div class="slick-pagination"> <button class="project-gallery-modal-prev slick-prev" tabindex="0">Prev</button> <button class="project-gallery-modal-next slick-next" tabindex="0">Next</button> </div> <div class="project-gallery-modal-carousel"> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-1.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-19.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-17.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-15.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-14.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-13.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-12.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-11.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-10.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-9.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-8.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-7.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-6.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-5.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-4.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-3.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-2.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> </div> <div class="project-gallery-modal-pagination"> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-1-300x200.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-19-300x169.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-17-300x169.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-15-300x169.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-14-300x169.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-13-300x169.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-12-300x169.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-11-300x169.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-10-300x169.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-9-300x169.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-8-300x169.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-7-300x200.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-6-300x200.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-5-300x200.jpg" alt="Oak Knoll 3-Story Custom Home" /> </div> <div class="thumbnail-slide"> <img class="project-image" src="https://calwalls.com/wp-content/uploads/2024/07/Lot12-4-300x200.jpg" alt="Oak Knoll 3-Story Custom Home" /> 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