Timber Retaining Walls
Timber does most of the work in the Hutt Valley. A pole and rail wall goes up in a few days, costs less per metre than anything else, and holds a 1.2m step in level.
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Eastbourne, Wellington region
Retaining Walls in Eastbourne
Top Retaining Walls Lower Hutt builds retaining walls through Eastbourne and the eastern bays, where the hills drop almost straight into the harbour and the flat land is a narrow strip along the shore. Nearly every job out here is a slope job with an access problem attached to it.
- Timber, block, gabion, stone and engineered walls
- Full drainage behind every wall we build
- Consents lodged through Hutt City Council
- Drainage on every wall300mm of metal, a drain coil and geotextile. Never an optional extra.
- H5 poles as standardThe right treatment for timber that lives in wet ground.
- Consents handledHutt City, Upper Hutt and Wellington, start to finish.
- Itemised quotesYou see what the drainage and the spoil actually cost.
The bays are steep and the flat land is scarce
Eastbourne, Days Bay, Mahina Bay, York Bay and Lowry Bay all sit on the same narrow shelf with greywacke hills rising sharply behind. Houses are cut into the slope, driveways climb hard, and back sections often rise faster than the house is wide.
Sloping ground above a wall counts as a surcharge, so most walls out here need a chartered engineer and a consent from Hutt City Council regardless of the height they measure. We work on that assumption until the site proves otherwise.
| Council for consents | Hutt City Council |
|---|---|
| Typical ground | Steep greywacke slopes above a narrow shoreline |
| Walls we build most here | Engineered block, gabion and stone |
| Consent threshold | 1.5m of retained ground, or any surcharge above the wall |
| Drainage | 300mm metal, perforated coil, geotextile, on every wall |
| Site visit | Free, with a written quote to follow |
Slip risk and why drainage matters more here
Weathered greywacke on a steep coastal slope moves when it gets saturated, and heavy rain on these hills is not rare. Water control is part of slope stability out here, not just wall protection.
So we spend more time than usual working out where surface and subsurface water goes. A coil that simply gets water out of the trench and dumps it further down the slope has moved the problem rather than solved it.
Salt air changes the materials
Bare galvanising corrodes faster this close to the water. On gabion work in the bays we specify PVC coated mesh, and we use hot dip galvanised or stainless fixings throughout rather than the cheaper alternatives.
Greywacke and concrete are untroubled by salt air, which is one reason block, gabion and stone walls are so common along this side of the harbour.
Not sure whether your wall needs a consent? Send us a photo and a rough height. Under 1.5m of retained ground with nothing loading it from above is exempt. A driveway, a building, a pool or fill sloping up behind it is a surcharge, and that changes the answer.
Common questions
Retaining walls in Eastbourne: common questions
Do Eastbourne walls always need consent?
Not always, but usually. Sloping ground above a wall is a surcharge, and combined with typical bay section wall heights it puts most jobs into consent territory.
What wall type suits a bay section?
Engineered block, gabion or stone. Gabion handles movement and drains completely, block takes an engineered design cleanly, and greywacke stone looks like it came off the hill behind you.
Wall types
Retaining walls we build in Eastbourne
Concrete and Block Retaining Walls
Concrete goes in wherever something heavy sits above the wall, and in a city built beside an active fault it is also what engineers reach for first. We build.
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Engineered Retaining Walls
Past 1.5m, or once a driveway or building sits above it, the job changes completely. You need a chartered engineer, a building consent from Hutt City Council and.
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Stone and Gabion Retaining Walls
Stone suits the Hutt hills, where a hard manufactured face can look wrong against bush and rock. The whole region is founded on greywacke, so local quarries put out.
See moreNeed a retaining wall in Eastbourne?
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