Site & Civil

• Catch basin

  A below-ground chamber with a grate at the surface that collects runoff and lets sediment settle in a sump before water flows into the storm pipe.

• Courtyard

  A courtyard is an open-air architectural space that is enclosed by walls or buildings, often serving as a central organizing feature within a residential, commercial, or institutional structure. Throughout history, courtyards have provided essential benefits such as natural light, ventilation, and privacy, acting as a protected outdoor extension of the interior living area. They function as multifunctional spaces for social gathering, relaxation, and gardening, while also helping to regulate the building's microclimate by facilitating airflow and cooling in temperate regions.

• Deck

  A deck is a flat, load-bearing architectural platform typically constructed outdoors and elevated from the ground. Usually made of wood, composite materials, or metal, it serves as an extension of a building's living space for activities such as lounging, dining, or entertaining. Decks are often connected to a main structure but can also be free-standing, and they typically include safety features like railings and stairways for access. Supported by a structural framework of posts, beams, and joists, decks are engineered to withstand environmental exposure while providing a functional transition between indoor and outdoor environments.

• Driveway

  A driveway is a private road or path that provides vehicular access from a public thoroughfare to a house, garage, or parking area. It serves as a critical transitional element between the public and private realms, often defining the initial architectural character and aesthetic tone of a property. Constructed from various materials such as concrete, asphalt, gravel, or decorative pavers, driveways are designed to support the weight of personal and service vehicles while incorporating functional considerations like turning radii, drainage gradients, and site-specific landscaping to enhance curb appeal and safety.

• Easement

  A legal right allowing someone other than the owner, such as a utility or neighbor, to use part of a property for a specific purpose like access, drainage, or service lines.

• Fence

  A fence is a freestanding structural barrier designed to enclose an outdoor area, demarcate boundaries, and provide security or privacy. Typically constructed from posts connected by boards, rails, wire, or netting, it differs from a wall by generally lacking a continuous solid foundation. Fences serve a wide range of functional and aesthetic purposes in architectural and landscape design, from agricultural livestock containment and perimeter protection for residential properties to decorative installations that enhance curb appeal and integrate with the surrounding environment. Materials vary significantly based on regional availability and specific needs, including timber, stone, metal, vinyl, and composite products.

• French drain

  A gravel-filled trench, usually containing a perforated pipe wrapped in filter fabric, that collects groundwater and carries it away by gravity.

• Gate

  A gate is an architectural element and structural component that serves as a movable barrier, controlling access and passage through an opening in a wall, fence, or enclosure. Functioning as a point of entry or exit, it regulates the flow of people and vehicles while providing a balance between security and accessibility. Beyond its practical use in delineating boundaries and managing privacy, a gate often serves as a significant design statement that reflects the architectural style and status of a property, ranging from simple functional frames to ornate, monumental structures.

• Gazebo

  A gazebo is a freestanding, roofed architectural structure with open sides, typically designed in a circular, hexagonal, or octagonal shape. Serving as a decorative focal point in gardens, parks, and other outdoor landscapes, it provides a sheltered area for relaxation, social gatherings, or dining while offering unobstructed views of the surrounding environment. Historically rooted in ancient civilizations and evolving into a status symbol in Victorian design, modern gazebos are constructed from various materials like wood, metal, or vinyl and may include features such as raised platforms, built-in seating, or screens to enhance comfort and privacy.

• Grading

  The reshaping of ground levels by cutting and filling to create stable building pads, drives, and paths, and to drain surface water away from structures.

• Patio

  A patio is an outdoor architectural element that typically adjoins a residence and is characterized by a hard-paved surface at ground level. Derived from Spanish and Latin American traditions, it serves as a versatile transitional space between a building's interior and the surrounding landscape, providing a dedicated area for dining, recreation, or relaxation. Unlike raised decks or balconies, a patio is built directly on the earth using durable materials such as stone, brick, concrete, or tile. While contemporary patios are often open-air backyards, the classical definition refers to an inner courtyard surrounded by walls or buildings, designed to provide private access to natural light and ventilation.

• Pergola

  A pergola is an outdoor architectural structure characterized by a series of vertical posts or columns that support an open-roof framework of horizontal beams and rafters, often arranged in a grid-like pattern. Unlike fully enclosed structures such as gazebos or pavilions, a pergola typically lacks walls and a solid roof, providing filtered shade and a sense of spatial enclosure while remaining open to the sky. It is frequently used to define outdoor living spaces, create shaded walkways, or serve as a structural support for climbing plants and vines, seamlessly blending built form with the natural landscape.

• Ramp

  A ramp is an inclined plane or sloped pathway that connects two different levels, providing a smooth transition for pedestrians, vehicles, and wheeled equipment. As a critical component of universal design and accessibility, it serves as an alternative to stairs, enabling independent movement for individuals with mobility challenges, such as wheelchair users or those with strollers. Ramps can be constructed from various materials like concrete, metal, or wood and are designed with specific gradient requirements, landings, and handrails to ensure safety and ease of use in both interior and exterior environments.

• Retaining wall

  A wall built to hold back soil where the ground changes level abruptly, resisting the sideways pressure of the earth behind it.

• Steps (exterior)

  Steps are the fundamental units of a staircase or exterior stairway, consisting of a horizontal tread for foot placement and a vertical riser that provides the height between levels. In outdoor environments, they are essential for bridging changes in elevation, connecting different areas of a landscape, or providing access to a building's entrance. Exterior steps must be designed with durable, weather-resistant materials such as concrete, stone, or treated wood and often feature anti-slip surfaces and specific drainage considerations to ensure safety and longevity under various environmental conditions.

• Swale

  A broad, shallow, usually planted channel that slows, filters, and carries surface runoff away from buildings toward a drain or infiltration area.

• Terrace

  A terrace is an outdoor, raised, flat platform structurally associated with a building or landscape, designed to serve as an extension of living space for leisure activities like dining, socializing, or viewing the surroundings. Often larger than a balcony and typically open to the sky, it can be located at ground level, on an intermediate floor, or as a rooftop area. Terraces provide a functional transition between interior and exterior environments and are constructed from durable materials such as stone, brick, concrete, or timber.

• Walkway

  A walkway is a defined path or thoroughfare designed for pedestrians to move safely and efficiently through various environments, such as buildings, gardens, and urban landscapes. It serves both functional and aesthetic roles, providing a stable surface for walking, jogging, or using mobility aids while protecting the surrounding terrain from foot traffic. Walkways can be constructed at ground level, raised as skybridges, or even enclosed to provide shelter from the elements. Often built from durable materials like concrete, stone, brick, or wood, they are essential for organizing circulation, enhancing accessibility, and defining the visual flow and character of an architectural or site plan.