Sloping Block Builder in Old Berwick
Old Berwick has real topography. North of the Princes Highway the land drains to Cardinia Creek and Grasmere Creek, with corner blocks that often fall away on two sides. Volume builders look at these sites and most walk away. NE Homes takes them on.
Old Berwick's sloping blocks go to waste
Old Berwick sits between the Cardinia Creek valley to the east and Grasmere Creek to the north. Plenty of corner blocks fall away on two sides. Pockets of the north-western estates that drain to Grasmere Creek and the Troups Creek East Branch sit in a Special Building Overlay, which brings a planning permit and Melbourne Water's say on the floor level. Land like this builds differently from a flat estate lot.
Volume builders use fixed designs built for flat subdivision land. When a sloping block comes across their desk, the cost of a site-specific structural solution sits outside their standard process, so most pass. The block owner ends up with a site that has real value and nowhere obvious to take it.
These blocks are worth building on. They are large, established blocks in a suburb where land values have held, and the problem is finding a builder willing to take the job. NE Homes builds on sloping blocks, with multiple completed sloping block homes across Melbourne's south east.
Where the ground makes a Berwick build harder
Corner falls and the Cardinia Creek edge
Corner blocks often fall away on two sides. Some sites also have drainage constraints that only show up on a proper site inspection. Lots beside Cardinia Creek can sit in a Bushfire Management Overlay, where Casey's schedule asks for construction to BAL-12.5 and 30 metres of defendable space, which shapes where the house can sit on the slope. NE Homes does a site visit before quoting on any sloping block in Old Berwick.
Class P soil, with mudstone in the deeper cuts
On our Berwick jobs, soil reports often come back Class P, particularly on knockdown rebuilds. Deeper cuts regularly run into mudstone. On a sloping block, the soil combines with drainage requirements and lateral soil pressure to create a more involved engineering brief than a flat site. NE Homes designs for slope and soil class together from the initial site assessment.
A director with a civil engineering background
NE Homes' director has a background in civil engineering, so the falls, drainage and retaining on a Berwick block get assessed before the first line of the design is drawn. On the township grid that assessment includes the SLO4 trees: cuts, fill and retaining walls within 5 metres of a protected tree's drip line need a planning permit.
Three sloping block builds in Melbourne's south east
NE Homes has completed three sloping block homes in Melbourne's south east. All three involved significant gradient, reactive clay soil and engineering requirements that volume builders had declined before NE Homes was brought in. References are available on request.
- 1A shallow fall toward the street often works well as cut-and-fill, with standard single or double-storey construction above.
- 2On our Berwick jobs, deeper cuts regularly run into mudstone, and soil reports often come back Class P.
- 3A steep fall to the rear may suit a two-storey where the upper and lower levels each have their own entry point.
Schematic, not to scale. The dashed line marks the natural ground. The gradient, the direction of fall and where you want the main living areas decide the approach, so we assess each block before design begins.
From survey to slab on a Berwick slope
The order matters more on a slope than on a flat block, because each step sets the limits for the next one.
- 1Survey and soil report: levels across the whole block and the soil class at the depth the cuts will reach.
- 2Design to the fall: cut and fill, a split level or two storeys, chosen from the survey.
- 3Engineering: footings, retaining walls and drainage designed together.
- 4Permits: a planning permit only where an overlay or a tree triggers one, then the building permit from a private building surveyor.
- 5Build, with the director on site from excavation through every stage after it.
Berwick slope questions: cost, volume builders and split levels
How expensive is it to build on a sloping block in Old Berwick?
Expect it to cost more than a flat site, by an amount the block itself decides. The biggest drivers are how far and which way the land falls and how deep the cuts go before they reach mudstone. Retaining walls, drainage and footings for a Class P report follow from those. A Bushfire Management Overlay near Cardinia Creek or a Special Building Overlay in the north-western estates can add construction requirements of their own. NE Homes provides a site-specific estimate after an initial assessment, before any design fees are committed.
Will volume builders take on sloping blocks in Berwick?
Most volume builders will not take on sloping blocks in Berwick. They build from fixed designs developed for flat estate land, and a sloping block requires a site-specific structural approach that sits outside their standard process, so most decline rather than take on the additional design cost. NE Homes builds to a site-specific brief from the start, which is why sloping blocks make up a significant part of its work.
Should I build split-level or two-storey on a sloping block?
Whether to go split-level or two-storey depends on the gradient of your block, the direction of fall and which orientation you want for the main living areas. A shallow fall toward the street often works well as cut-and-fill with standard single or double-storey construction above. A steep fall to the rear may suit a two-storey where the upper and lower levels each have their own entry point. NE Homes assesses each site before design begins and works out the right structural approach for the specific block, because there is no universal answer that works across the range of sloping sites in Old Berwick.
Discuss your sloping block build
Call or send a message. Our director will look at your block and tell you whether a sloping block build is the right fit.
On flatter blocks nearby we work as a custom home builder in Berwick and as a knockdown rebuild builder in Berwick. All three sit together on what we build across Berwick, which is the place to start if the block has not been assessed yet.
Weighing a sloping block? Read why volume builders turn them down and how to approach building on a slope. The soil report is where most of that is decided, so site classification and reactive clay on a slope is worth reading before the first design meeting.