How Much Does It Cost to Build a Duplex in Wollongong?

Building a duplex in Wollongong costs between $700,000 and $1.3 million for both dwellings in 2026, or roughly $350,000 to $650,000 per side. On a per-square-metre basis, you’re looking at $2,400 to $4,200/m² depending on the design complexity, site conditions, and finish level. These figures are construction only. Add design, approvals, site works, and subdivision […]
How Much Does a Commercial Strip Out Cost in Wollongong?

A commercial strip out in Wollongong costs between $50 and $180 per square metre in 2026, depending on the size of the space, what’s being removed, and whether asbestos is involved. For a standard 150-400m² office strip out (partitions, ceiling tiles, carpet, and basic services), you’re typically looking at $10,000 to $35,000. A retail tenancy […]
How Much Does a Home Addition Cost in Wollongong? (2026 Guide)

At Adlington Homes, we believe you must start with a budget you understand. This guide breaks down exactly where your money goes. We explain why “free quotes” are often the most expensive option and how to protect your investment from the start.
Building on Sloping Blocks in the Illawarra: What It Means for Your Addition

Sloping blocks are common across the Illawarra. From the escarpment suburbs of Balgownie and Mount Keira down to the coastal hillsides of Thirroul and Stanwell Park, many homeowners sit on land that drops away from the street or falls toward the rear. If you are planning a home addition on one of these blocks, building […]
How Do Illawarra Homeowners Finance a Home Addition?

Most homeowners in the Illawarra know what they want to build. The harder question is how to pay for it without exposing themselves to financial stress, budget blowouts, or a half-finished project that stalls because the money ran out at lock-up stage. Financing home additions is not the same as financing a new home purchase […]
Granny Flat and ADU Additions in Wollongong (2026 Rules & Costs)

A granny flat (officially called a secondary dwelling in NSW planning law) is one of the most practical additions you can build on an Illawarra property. It creates a self-contained living space on your existing block without subdividing, and in most residential zones around Wollongong it can be approved through the fast-track Complying Development pathway. […]
How Long Does a Home Addition Take? A Complete Timeline for Illawarra Homeowners

See the home addition timeline for Illawarra projects. Adlington Homes explains each stage, common delays, and when to book your build.
Renovate vs. Rebuild vs. Extend: How to Decide in the Illawarra

If you own an older home in the Illawarra and need more space or a better layout, you face one of the biggest decisions in residential construction: do you renovate what you have, knock it down and rebuild, or extend the existing footprint? The answer is never generic. It depends on the condition of your […]
Sustainable Home Additions Illawarra: How to Build an Eco-Friendly Extension

Adlington Homes builds sustainable home additions in the Illawarra. Learn about BASIX compliance, eco-friendly materials, and passive design for your extension.
Home Addition Design Ideas for Illawarra Homes

Looking for home addition design ideas in Illawarra? Explore popular styles, room types, and design principles, then get a free online estimate from Adlington Homes.