Landscape Design Cost in Ontario: What Design-Build Really Costs
Design-build pricing for Ontario backyards in 2026
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“Landscape design” can mean a hand-drawn sketch on a napkin or a fully engineered set of construction drawings. The cost reflects what you actually need. Here is the honest breakdown.
Three levels of landscape design
Concept sketch / consultation (free to $750): a free site visit and a verbal direction is enough for many smaller projects. We do this for the majority of patio jobs we quote.
Concept plan with material selections ($1,500-$3,500): a real plan-view drawing of the design, with paver selections, planting list, and material specs. Right for mid-scope projects where you want to see the design before committing.
Full design-build documentation ($3,500-$8,000+): includes everything above, plus drainage drawings, lighting plan, irrigation layout, multiple revision rounds, and construction-ready details. Right for larger projects, projects requiring permits, or anything with multiple outdoor rooms.
The design-fee-credit model
Many design-build firms (us included) credit the design fee against the build if the client proceeds. The math: if a design costs $3,500 and the build is $40,000, the build invoice shows a $3,500 credit, and the actual incremental cost of the design is zero. The fee covers our time if you decide not to build with us, which is rare but happens.
What full design-build projects actually cost
| Project scope | Total cost range | Typical install duration |
|---|---|---|
| Single-room focused build (patio + planting + lighting) | $15,000-$30,000 | 1-2 weeks |
| Multi-element backyard (patio, wall, planting, deck step) | $25,000-$50,000 | 2-3 weeks |
| Full backyard transformation (multiple rooms, walls, lighting, fire feature) | $50,000-$100,000 | 3-5 weeks |
| Estate-level design-build (multi-acre, pools, structures) | $100,000-$300,000+ | Multi-phase, often over 1-2 seasons |
What drives the design cost
Three things. Scope: a single patio is one drawing; a full backyard with grading, drainage, hardscape, planting and lighting is six. Site complexity: a sloped lot with multiple grade changes needs more design time than a flat lot. Revision rounds: the first concept usually has 1 to 2 rounds of revision built in. Major direction changes beyond that add design time.
What you should expect from a design
A real landscape design is more than a pretty picture. You should get: scaled plan-view drawing, material selections with samples, planting list with mature sizes, lighting layout if relevant, drainage strategy, and a cost estimate that ties to the design. If a “designer” gives you a sketch on graph paper without any of these, you are paying for less than you think.
Designer-only vs design-build
Designer-only firms (the design comes from one company, the build from another) typically charge $4,000 to $12,000+ for a design, with no credit if you build elsewhere. The advantage is independence. The disadvantage is that the designer is not on the hook for buildability or budget, and the inevitable “value engineering” conversations get harder.
Design-build firms (one team designs and builds) typically charge $2,500 to $6,000 for design, often credited against the build. The advantage is one-team accountability and budget reality from day one. The disadvantage is less designer independence.
Frequently asked questions
Is the design fee always credited if I build with you?
For most projects, yes. We credit the full design fee against the build invoice when a client proceeds. The fee covers our design time if the project does not go ahead.
How long does the design process take?
Typical timeline is 3 to 6 weeks from first site visit to finalized design ready to build, depending on revision rounds and project scope. Smaller projects can run faster.
Do I need a landscape designer or can I just hire a contractor?
For a single straightforward project (a patio replacement, a small garden refresh), a good contractor can handle the design conversation directly. For multi-element projects, full backyards or anything requiring permits, a real design saves money in the long run by getting the project right the first time.
Can I do part of the project myself to save on cost?
Yes. Common DIY portions: planting (after we install the irrigation and prep the soil), mulching, garden bed expansion, and basic maintenance. Hardscape (patios, walls, drainage) we strongly recommend leaving to the professional crew.
How accurate is the cost estimate from a design?
If the design is detailed, the estimate should be within 5 to 10% of the final invoice barring scope changes. Big variances usually come from changes requested mid-build (homeowner adds a fire feature, upgrades materials, etc.). The design phase is when you make those decisions to keep the budget on track.
Sources and further reading
- Interlocking Concrete Pavement Institute (ICPI) for paver industry standards, base-prep specifications and installer certification.
- Landscape Ontario for Ontario industry standards, member directories and consumer resources.
- Belgard, Techo-Bloc, Unilock and Permacon for paver product specifications and warranty information.
- Peace Love Landscaping installer experience across hundreds of projects in Hamilton-Wentworth, Halton and Niagara, 2008-2026.