Sammamish Flagstone Patio Project
Custom Natural Stone Patio & Pergola | Sammamish, Washington
This project transformed a sloped backyard in Sammamish into a functional outdoor gathering space featuring a natural flagstone patio, custom pergola, and integrated drainage designed for the Pacific Northwest environment.
The homeowners wanted an outdoor space that felt natural and timeless while also being durable enough to perform well through seasonal weather conditions. The result is a comfortable patio designed for entertaining, relaxing, and everyday outdoor living.
Project Overview
This patio installation combined natural stone materials with thoughtful design and structural preparation to create a long-lasting outdoor living space.
Project features included:
• Natural flagstone patio installation
• Custom pergola structure
• Stone steps and transitions
• Integrated drainage system
• Structural base preparation for durability
The finished patio blends naturally with the surrounding landscape while creating a defined and inviting outdoor environment.
Natural Flagstone Patio Installation
Natural flagstone provides a unique surface with variation in color, texture, and shape. Each stone is individually selected and positioned to create a balanced layout that feels organic while still providing a comfortable walking surface.
Unlike manufactured pavers, natural stone patios require careful placement and fitting of each piece. This process allows the patio to follow natural contours and creates a distinctive appearance that complements the surrounding landscape.
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Proper Base Preparation and Drainage
One of the most important factors in long-lasting patio construction is what lies beneath the stone surface.
For this project, the site was excavated and prepared with layered base materials designed to provide both structural stability and effective drainage. This foundation helps prevent settling, shifting, and water accumulation over time.
In Central Washington and the surrounding mountain environments, proper base preparation and drainage are essential for preventing frost movement and ensuring the patio performs well for many years.
Pergola and Outdoor Living Space
A custom pergola was added to define the patio area and provide shade during warmer months. The pergola helps create a comfortable gathering space while adding architectural structure to the outdoor design.
Combined with the natural stone patio, the pergola creates a welcoming environment for outdoor dining, relaxing, and entertaining.
Construction Process
Projects like this typically involve several stages of construction:
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Site evaluation and layout planning
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Excavation and base preparation
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Installation of drainage systems
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Placement of compacted structural base materials
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Installation and fitting of natural flagstone
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Joint finishing and final detailing
Each step plays an important role in creating a patio that performs well for decades while maintaining its appearance.
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Finished Outdoor Space
The completed patio provides a durable and visually appealing outdoor space that enhances both the functionality and value of the property.
By combining natural stone materials, thoughtful design, and proper installation methods, the project delivers a long-lasting outdoor living environment that integrates naturally with the surrounding landscape.
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Planning a Patio Project?
Dreamlike Builders specializes in custom patios and outdoor living spaces throughout Central Washington, including Chelan and Kittitas Counties.
If you're considering building a patio and would like to discuss your property, design ideas, and materials, we would be happy to help.
Request a consultation to start planning your outdoor living space.
Learn more about patio materials, installation methods, and what affects project costs.​