Palos Verdes, Torrance / South Bay Guide to Retaining Walls: What to Know Before You Build

If you're in the South Bay, you’ve probably noticed the varying terrain—perfect for stunning views but not always ideal for creating usable yard space. Whether you’re dealing with a sloped backyard, an eroding hillside, or just want to make your outdoor space more functional, a retaining wall can be a game-changer.

But before you start stacking blocks or calling contractors, let’s dive into what you really need to know about retaining walls in the South Bay area.

Do You Actually Need a Retaining Wall?

First, let’s clear up the basics. If you’ve got a sloped yard (looking at you, Rancho Palos Verdes and Rolling Hills Estates), a retaining wall can help manage erosion, create level planting spaces, or simply make your yard more usable.

Common signs you need a retaining wall:

• Erosion: Water runoff is washing away soil and damaging your landscape.

• Uneven Yard: A sloped or uneven yard is hard to enjoy or use effectively.

• Flooding: Poor drainage makes your yard a muddy mess every time it rains.

In the South Bay, areas like San Pedro, Torrance, and Hermosa Beach can benefit from retaining walls, which provide the structure needed to keep soil in place.

What Are Your Options?

Gone are the days of ugly cinder block walls. These days, retaining walls come in a variety of materials to match your style and budget. Here’s a breakdown of some popular options:

• Natural Stone: Beautiful and rustic, natural stone offers a timeless, earthy look.

• Concrete Blocks: Affordable and durable, they’re perfect for clean lines and modern designs.

• Timber: Ideal for a more natural look, timber can be great for softer, sloping areas.

The material you choose will depend on your yard’s style and the wall's function. For example, if you’re trying to retain soil in a large garden, a sturdy stone wall might be the best option. If you’re looking to add curb appeal or create a terraced garden, timber might fit the bill.

South Bay’s Unique Landscape: Why Location Matters

The South Bay is full of diverse landscapes, which makes retaining walls an essential feature in many homes. For example, Paseo del Mar in San Pedro is known for its steep cliffs, so many homes in this area need retaining walls to help manage erosion and stabilize the terrain. Similarly, neighborhoods like Hickory Square and Towers in Torrance are known for their hilly areas, making retaining walls crucial for preventing soil runoff and creating flat, usable spaces.

Homes in these areas often face unique challenges when it comes to landscaping, and a retaining wall can be the perfect solution for stabilizing the soil and creating a functional outdoor space.

Avoid These Common Retaining Wall Mistakes

Before you start your retaining wall project, here are a few things to watch out for—especially in South Bay’s unique terrain:

• Skipping Drainage
  Water buildup behind a wall is one of the top reasons they fail. Make sure your wall design includes proper drainage.

• Choosing the Wrong Material
  Not every material works for every slope or soil type. For steep or erosion-prone areas, durability matters more than looks alone.

• Overlooking Local Permits
  In areas like Torrance and Palos Verdes, taller walls may need permits. It’s worth checking before you build.

A little planning goes a long way. With the right team and approach, you’ll avoid costly mistakes and get a wall that actually lasts.

When is the Best Time to Build?

Spring is a great time to tackle your retaining wall project, but late spring—specifically May to early June—is ideal. By this time, the rainy season has usually passed, and the weather is more predictable, allowing for smooth construction. This gives you plenty of time to enjoy your newly transformed yard before the summer heat hits.

Get Started on Your Retaining Wall Project Today

So, now that you know the basics, it’s time to plan! If you’re in the South Bay and considering a retaining wall, make sure to:

• Choose the right materials that fit both your budget and aesthetic.

• Consider drainage and erosion control to protect your investment.

• Hire a professional who knows the ins and outs of South Bay’s unique landscape.

At Jonakee Landscaping, we specialize in working with local homeowners to build durable, functional, and beautiful retaining walls that can withstand the test of time (and the South Bay weather). Whether you're in Redondo Beach, Torrance, or San Pedro, we can help you transform your sloped yard into a usable outdoor space.