Backyard landscaping in Wellington gets talked about like it’s a straightforward add-on to a house — some turf, a few plants, maybe a deck. I found out otherwise on my own section in Johnsonville. It started blank and sloping, and I priced it the way most first-timers do: plants, turf, a paved area, some fencing, call it $15,000. Once I understood what a Wellington section actually demands before you can plant anything, the real number came in closer to four times that. I’ve spent years landscaping hill sections like it around this city, and I’m not telling you this to put you off — I’m telling you because a realistic budget is the difference between a finished backyard and a muddy, half-done one you abandon by year two. Here’s what a full backyard landscape genuinely costs in Wellington in 2026.
What a full backyard actually costs in Wellington
A complete backyard landscape — design, ground preparation, hard surfaces, planting and fencing — on a typical suburban section runs roughly $35,000 to $100,000 including GST. In Johnsonville and the other northern hill suburbs — Newlands, Tawa, Khandallah — where sections are often sloped and wind-exposed, most of the projects I’ve watched land in the $45,000 to $75,000 band. The width of that range comes down to one thing more than any other: how much the ground has to be tamed before a single plant goes in.
Where that number breaks down
These are the rough per-element costs I see quoted on Wellington backyards:
| Element | Typical cost |
|---|---|
| Design and plan | $2,000 – $6,000 |
| Earthworks and levelling (on a slope) | $8,000 – $25,000 |
| Retaining walls | $400 – $700 per m² of wall face |
| Paving or patio | $180 – $350 per m² |
| Decking | $350 – $600 per m² |
| Fencing (solid, wind-rated) | $250 – $500 per lineal metre |
| Planting, topsoil and lawn | $6,000 – $20,000 |
Wind, slope and access are what blow out the quote
Three things make Wellington landscaping cost more than the same job in a flatter, calmer city. First, the wind — southerlies tear through northern suburbs like Johnsonville, so flimsy fencing and delicate ornamental planting are a waste of money. Solid, properly braced fencing and hardy, wind-tolerant species cost more up front but they’re still standing in five years. Second, the slope. Very few Wellington backyards are flat, so retaining and drainage aren’t optional extras — they’re usually the single biggest hidden cost on the job. Third, access. Narrow driveways and stepped sections mean smaller machines and more hours of hand labour, and that quietly adds thousands to a quote that looked fine on paper.
Drainage isn’t the place to cut corners
Wet Wellington winters and clay-heavy hill soil mean water has to go somewhere. If you don’t plan for it properly with proper stormwater and subsoil drainage, it ends up under your new patio or hard against the house. A proper subsoil drainage setup for a backyard commonly adds $4,000 to $12,000 to the job. It’s the same problem I see on retaining wall builds and hardscaping jobs generally — drainage is never the line item to negotiate down.
DIY, project-manage, or hand it to one crew
You’ve got three broad routes. DIY saves on labour but eats your weekends for a year and rarely handles earthworks and retaining safely. Project-managing — hiring the digger operator, fencer and planter yourself — saves maybe 15 to 20 percent, but you’re coordinating trades and carrying the risk when their schedules clash. Or you hand the whole thing to one landscaping outfit that manages it end to end. For anything involving retaining, drainage and machinery on a slope, I lean towards the last option: one point of accountability when the ground throws up a surprise, which on a Wellington section it always does. If you want to see which plants actually cope with the conditions before you spend a cent, my piece on landscaping a windy Wellington section is the companion read to this one.
How I keep a quote honest
Get the design finalised first, then price the built design — not a vague wishlist. Ask three landscapers to quote the same itemised plan so you can compare like with like and see who’s quietly left drainage off the page. Confirm whether any retaining wall over 1.5 metres needs a building consent, because that changes both cost and timeline. Greater Wellington Regional Council’s guidance on earthworks and stormwater at Greater Wellington Regional Council is worth reading before you dig. And hold a 12 to 15 percent contingency. On a Wellington slope, the ground is the one variable you can’t fully see until the digger’s already in it.
Questions I get asked about Wellington backyards
How much does a full backyard landscape cost in Wellington in 2026? A complete backyard landscape on a typical suburban section runs roughly $35,000 to $100,000 including GST, with most sloped northern-suburb projects — Johnsonville, Newlands, Tawa — landing between $45,000 and $75,000.
Can I landscape a Wellington section in stages instead of all at once? Yes, and I’d usually recommend it if the budget’s tight — but do the earthworks, retaining and drainage first, in one pass, even if planting and paving come later. Splitting the ground-taming work across stages is what leads to a re-do, not a saving.
What plants and fencing actually hold up on a Wellington backyard? Solid, wind-braced fencing and hardy, wind-tolerant natives hold up; delicate ornamentals and light lattice fencing don’t last a winter. I cover the specific species and fencing styles that get through a southerly in the companion piece linked above.
Do I need consent for backyard landscaping in Wellington? Basic planting and paving usually don’t need consent, but retaining walls over 1.5 metres, walls carrying a load, and significant earthworks can require building or resource consent. Check with the council before starting. If the job starts by removing an old shed or a failed wall, a Wellington demolition contractor can price that separately so it does not hide inside the landscaping quote.