Penning's design-build process runs in four phases: discovery and vision, design development, build and installation, and maintenance and gardening. One team handles all four, with a single point of contact from the first site visit through the life of the landscape. The firm that designs and builds the landscape is the one that maintains it.

Penning designs and builds for luxury estates and wineries across Napa Valley and Sonoma County. Its clients include estate managers, private estate owners, and winery property directors caring for high-value properties. The firm focuses on full-scope custom projects rather than small one-off jobs.

Every project is scoped and priced individually, so Penning prepares a custom proposal after visiting the property. Pricing depends on the size of the grounds, the scope of the build, and the materials and planting involved. Penning does not publish set pricing because no two estates are alike.

Penning designs the landscape and manages the entire build as a single-source partner. The firm self-performs the planting, lighting, and irrigation work, and coordinates specialist trades such as masonry, pools, and larger structures, so you deal with one accountable team rather than several contractors. When you already have a designer or architect, Penning collaborates with them and manages the build to their plans.

The first step is a consultation at your property. Penning walks the site, listens to how you want to use the space, and evaluates the conditions that shape the design. From there, the team prepares a custom proposal. Request a consultation to begin.

Penning stays on to maintain the landscape it builds through its Maintenance and Gardening program. The same firm watches over the grounds, adjusts the planting as it matures, and keeps everything healthy over the years. This long-term care is the reason Penning designs and builds for the long view.