Drainage & Grading

Water management planned as part of the whole outdoor space.

Drainage problems rarely come from one issue alone. Slope, collection, discharge, hardscape layout, and soil behavior all affect how a property performs. CDG approaches the major solution families as one coordinated strategy.

Drainage and grading landscape solution by Constructive Design Group

Start with the site

We look at topography, low points, runoff paths, and how new outdoor features will change water movement.

Match the right tools

Different drainage conditions call for different combinations of grading, collection, conveyance, storage, and infiltration.

Build it to fit

The goal is not to bolt drainage onto the end of a project, but to integrate it with patios, planting, pools, and access.

Solution families

Each property has its own combination of runoff, saturation, slope, and usability challenges. These are the major categories we evaluate when building a drainage and grading plan.

Graded landscape with retaining wall for managing a change in elevation

Grading

Grading sets the direction for everything else. We shape slopes and finished elevations to move water away from structures, reduce standing water, and support the long-term performance of the landscape and hardscape around it.

  • Reworking problem slopes near foundations and patios
  • Planning finish grades before new outdoor construction begins
  • Reducing soggy lawn areas and surface runoff issues
Graded landscape slope shaped to direct stormwater away from outdoor spaces

Retaining walls

When grade changes need structure, retaining walls help stabilize transitions and create usable outdoor space. They are often part of a larger drainage strategy on sloped or layered sites.

  • Managing elevation changes across terraced yards
  • Supporting patios, planting areas, and access paths
  • Helping control erosion on sloped properties
Above-ground cistern for collecting and managing stormwater

Cisterns

Cisterns can be used when a project needs to capture and hold water as part of a broader site strategy. They are considered when storage, controlled release, or water reuse goals need to be coordinated with grading and drainage design.

  • Capturing runoff from selected roof or site areas
  • Supporting controlled water collection strategies
  • Coordinating storage with other drainage components
Dry creek landscape channel used to guide stormwater

French drains

French drains help intercept and redirect subsurface water that lingers around lawns, beds, patios, and foundations. They are useful when water needs to be collected below the surface and carried to a better outlet.

  • Relieving saturated areas near structures
  • Collecting water along patios, walks, and planting beds
  • Moving groundwater toward an appropriate discharge point
Dry creek landscape channel used to guide stormwater

Dry creeks

Dry creeks provide a visible path for moving stormwater across the property while adding texture to the landscape. They can help slow erosion and organize runoff in a way that feels integrated with the yard instead of hidden from it.

  • Guiding surface runoff through natural-looking landscape corridors
  • Managing erosion in areas with concentrated flow
  • Blending drainage function into planted outdoor spaces
Drainage installation detail for a dry well system

Dry wells

Dry wells are considered when collected water needs a place to disperse below grade. They are typically part of a system, working alongside surface collection and conveyance components rather than acting as a one-piece fix.

  • Receiving water from downspouts or area drains
  • Supporting systems where direct discharge is limited
  • Helping distribute collected water below grade
Catch basin used to collect surface runoff

Catch basins

Catch basins collect surface water at low points before it spreads across paving, turf, or planting beds. They are often used where fast collection matters, especially around patios, drive approaches, and drainage transitions.

  • Collecting runoff at hardscape low points
  • Managing concentrated water near transitions and edges
  • Connecting surface drainage into larger site systems
Permeable paver surface designed to help manage stormwater

Permeable pavers

Permeable pavers can help certain hardscape areas handle water more gracefully by allowing infiltration through the surface assembly. They are evaluated as part of an integrated hardscape and drainage approach rather than as a stand-alone aesthetic upgrade.

  • Supporting patios or walkways where runoff reduction matters
  • Coordinating surface drainage with hardscape design
  • Pairing water management goals with finished outdoor living spaces

Better outcomes come from combining systems, not forcing a single fix.

Some sites need regrading first. Others need a mix of surface collection, subsurface drainage, structural support, and hardscape choices that help water behave better over time. Our role is to organize those pieces into a plan that supports the way the property is actually used.

Ready to talk through your site?

If drainage issues are affecting how you use your yard, we can help evaluate the conditions and discuss the right mix of solutions.

Request a Quote