Why Irregular Shaped Blocks Can Be a Great Buy

2nd June 2025

Finance & Budgeting Pre-Construction Design & Trends

Irregular shaped blocks are often overlooked by home buyers, but they can offer better value, more space, and greater design flexibility. This article explores the benefits, design tips, and common pitfalls of building on non-traditional lots in Australia. Perfect for buyers looking to get more for their money without compromising on lifestyle.

Why Irregular Shaped Blocks Can Be a Great Buy

When browsing land options, most home buyers default to rectangular blocks. But irregular shaped blocks - including corner lots, battle axe blocks and pizza-shaped parcels - can actually be a strategic choice if you know what to look for. In this episode, Colin Bischof and Darren Brennan explore why these unique lots are often overlooked and how they can deliver serious value.

What is an Irregular Shaped Block?

An irregular shaped block refers to any lot that deviates from the traditional four-boundary rectangular format. Common types include:

• Corner blocks with two street frontages

• Battle axe blocks with narrow access and a wider rear section

• Pizza-shaped blocks with varied or multiple boundaries

These shapes emerge when developers work around curves, cul-de-sacs or maximise use of awkward land parcels. They’re less conventional - but that’s exactly where the opportunity lies.

The Benefits of Buying an Irregular Block

Buying an irregular shaped block can have distinct advantages:

• Better value – Price per square metre is usually lower, and developers are often open to negotiation

• More space – Many irregular blocks offer more total land area than standard lots in the same estate

• Creative design potential – You can often take advantage of side and rear yard space for:

• • Sheds, pools, spas or decking

  • Split yard zones (front/side/back)

  • Enhanced street appeal

• Increased resale value – A larger, better-utilised block can appeal to future buyers

Darren noted, “Once it's built and landscaped, you rarely notice the shape - you just see the space and lifestyle.”

What to Watch Out For

While there are many upsides, irregular shaped blocks do require careful planning. Key risks include:

• Incorrect design fit – Not all builders can modify their plans to suit unusual layouts. Always confirm fit before you buy.

• Splays and boundary angles – Building on angles (known as splays) may require:

• • Additional roof costs (e.g. Colorbond instead of tiles)

  • Custom design fees

  • Council or developer approvals

• Crossover confusion – The driveway position affects how your home must be oriented. Some buyers assume the crossover is at the front, only to learn it's at the rear.

• Setback restrictions – Some blocks require setbacks of 1m or 3m from specific sides or boundaries. This can change where your garage or living area can go.

• Design guideline limitations – Some estates enforce two-storey builds or specific design rules on irregular lots.

Smart Tips for Buyers

If you are considering an irregular block:

• Get a concept site plan done early (even if it costs a few hundred dollars)

• Work with a builder that is flexible and can adapt to your block

• Understand your setbacks and orientation requirements clearly

• Double check the crossover location before committing

• Don’t assume all consultants will identify these issues – get independent advice if unsure

Key Takeaways

• Irregular shaped blocks can offer great value and creative design flexibility

• They may cost less per square metre and provide more usable outdoor space

• The key is selecting the right design and right builder to suit the lot

• Always confirm block suitability with a proper plan before signing a contract

Listen to the Full Episode

For a deep dive into examples, mistakes to avoid and expert advice, listen to the full episode:

👉 Why Irregular Shaped Blocks Can Be a Great Buy

Glossary of Terms

• Battle axe block – A block with a narrow driveway access and wider rear area

• Splay – A wall or building line that is angled, not perpendicular

• Crossover – The section of the kerb where your driveway connects to the road

• Setback – The required distance between a structure and the boundary of the lot

FAQ

Q: Do all builders work with irregular shaped blocks? No. Some builders have fixed floorplans and won’t customise to suit unusual shapes. Work with a builder that offers design flexibility.

Q: Is it worth paying for a concept site plan? Absolutely. A basic sketch plan can avoid expensive redesigns later and ensure your chosen home fits the block.

Q: Are irregular blocks harder to sell later? Not necessarily. If landscaped well and designed smartly, they can be more appealing due to larger land size or unique layout.

About the Home Building Hub Podcast

The Home Building Hub podcast, hosted by industry experts Colin Bischof and Darren Brennan, is Australia’s premier resource for new home buyers. With weekly episodes featuring special guests, the podcast provides objective, high-quality insights into the home building process - completely free and without sales pitches. From understanding financing options to navigating the complexities of building a new home, each episode is packed with actionable advice and tips.

Explore more episodes at http://www.homebuildinghub.com.au and join our growing community of informed home buyers.

Disclaimer

Whilst we’re all about providing value to you, this article should not be considered as legal or financial advice. It contains general information only and is based on the content discussed during the podcast episode. This information is relevant to the episode’s release date and may not be applicable at the time of reading. Always seek independent professional advice tailored to your personal situation before making any legal or financial decisions.