How to Read a Landscape Design Plan Before Work Begins

Most of the landscapers in Perth has on offer will hand you a design plan before any digging starts. It might be a hand-drawn sketch or a detailed set of drawings, but either way it's the closest thing you'll get to seeing the finished garden before it exists.

Many homeowners give the plan a quick glance, say it looks great and sign off. That's a shame, because the plan is where changes are easiest to make. Moving a path on paper takes a few minutes. Moving it once the pavers are down is a different story.

You don't need any design training to read one properly. You just need to know what to look for.

Get your bearings first

Every plan is drawn to a scale, which tells you how distances on the page relate to real distances in your yard. A common scale for residential gardens is 1:100, where 1 cm on the page equals 1 m on the ground. Check the scale before anything else, because it changes how big or small everything looks.

Next, find the north arrow. It shows which way the plan is facing, and it matters more than you might think. Knowing where north sits tells you which areas will get the most sun, where shade will fall in the afternoon and whether that new seating area will be pleasant on a summer evening or baking hot.

Then locate the house. Most plans show the outline of your home, including doors and windows. Picture yourself standing at the back door and looking out. Does the layout make sense from that spot?

Make sense of the symbols

Landscape plans use a visual shorthand. Circles of different sizes usually represent trees and shrubs, while patterned or shaded areas show paving, decking, lawn or garden beds. Dashed lines often mark things that are overhead, like a pergola roof, or underground, like pipes.

There should be a legend or key that explains each symbol. If there isn't one, or if a symbol isn't clear, ask. It's far better to check than to assume a shaded rectangle is a garden bed when it's actually a concrete pad.

Pay attention to the size of the tree symbols, too. They're often drawn at their expected mature size rather than the size they'll be on planting day. That's helpful for planning, but it also means the garden will look sparser at first than the drawing suggests.

Look closely at levels and drainage

This is the part of a plan that's easiest to skip and most important to understand. If your yard slopes, or if the design changes the levels in any way, the plan should show it. Look for spot heights, contour lines or arrows showing the direction water will flow.

Where will rainwater go during a heavy downpour? Ideally it should move away from the house and towards garden beds, drains or other areas that can handle it. If the plan includes retaining walls, steps or raised beds, check how they fit with the overall levels.

If you can't find any information about levels or drainage, raise it. A garden that looks perfect on paper but sends water towards your back door won't feel perfect for long.

Check the planting schedule

Detailed plans usually include a planting schedule. It's a list of every plant in the design, often with a code that matches labels on the drawing, along with the quantity and sometimes the size at planting.

Read through it slowly. Do you recognise the plants? Are there any you've struggled with before or simply don't like? Is anything toxic to pets, spiky beside a path or likely to drop leaves into the pool?

It's also worth asking how each plant will look through the seasons. Some are stunning for a few weeks and fairly plain the rest of the year. A good mix gives the garden interest year round, so you're not left with a bare patch every winter.

Understand the hard surfaces

Paving, decking, gravel and edging often make up a large part of a design. The plan should show where each surface goes and, ideally, which material is intended. Sometimes this information sits in a separate materials list or in notes on the side of the drawing.

Think about how each surface will feel to use. Is the path wide enough for two people side by side, or for a wheelbarrow? Will the patio fit your outdoor table with room to pull out the chairs? A tape measure and a few minutes in the yard can answer these questions quickly.

If you're unsure what a material looks like, ask to see a sample or a photo of it in a finished garden. Colours and textures can look quite different in real life compared with a small swatch on a page.

Notice what isn't on the plan

Plans tend to focus on what's being built, so some practical details can get left out. Look for clothesline locations, bin storage, taps, garden lighting and the route a wheelbarrow or mower will take to reach the back of the yard.

Irrigation is another common gap. If the design includes new garden beds or lawn, how will they be watered? A plan that shows the planting but says nothing about water is only telling half the story.

Consider your neighbours' side of the fence as well. A large tree planted right on the boundary might cast shade where you didn't expect, or drop leaves into their gutters for years to come.

Questions to ask before you approve it

By now you'll probably have a list of notes. Before you sign anything, sit down with your landscaper and work through them, starting with the big ones.

How will this area feel in summer compared with winter? Where will water go after heavy rain? How long will the planting take to fill out? What will need regular attention once the work is finished?

Ask, too, which parts of the plan are fixed and which can still change. Some elements depend on levels, access or existing services and are hard to move. Others, like plant choices or the shape of a garden bed, are usually easy to adjust at this stage.

Making the plan your own

A design plan isn't a test you can pass or fail. It's a conversation starter between you and the person building your garden. The more closely you read it, the more chances you have to shape the result so it fits the way you actually live.

Take your time with it. Walk the yard with the plan in hand, mark the main features with string or stakes if it helps and picture yourself using each space. Those small efforts now are what turn a good drawing into a garden you'll enjoy for years.