Berkeley Vale Granny Flat Build – Investment Property Transformed for Strong Returns

When a property investor purchased a home in Berkeley Vale with the goal of adding a granny flat, our team at Coastwide Granny Flats was brought in to handle the entire design and build process. While the buyers agent managed the overall project, we took care of every aspect of the granny flat itself, from design, planning and engineering through to council approvals and construction.

Pre-Site Evaluation

Before the property was purchased, we conducted a pre-site evaluation to confirm that the block was suitable for a granny flat. This gave the investor confidence to move ahead, knowing the site would meet council requirements and support their long-term strategy.

Site Preparation

The backyard presented some unique challenges, including an old swimming pool that needed to be removed and backfilled. Our team managed the full preparation process, which also included clearing sheds, tree stumps, and installing new fencing to set up the block for construction.

Approvals and Construction

While the ground works were underway, we managed all approvals in the background to ensure there were no delays. The slab design was engineered with slightly larger piers to provide long-term stability on the reclaimed area, and once construction commenced the build progressed smoothly and on schedule.

Results

The granny flat was completed at a total project cost of $220,000 and rented out within just one week of handover for $550 per week. That equates to an annual rental income of $28,600, delivering a rental yield of 13% on the full project cost. If calculated only on the roughly $180,000 construction portion, the yield increases to nearly 16%. This strong result gave the investor immediate rental income while also adding significant long-term value to the property.