Second Storey Additions
& Extensions Sydney
Adding a second storey extension to your existing home is a great way to maximise living space without sacrificing your outdoor space. If you need spare bedrooms, a home office, or simply a larger living area, second-storey extensions are the practical and cost-effective decision. At Platform 88, we are experts in constructing and building seamless second-storey additions.
When Should You Consider a Second Storey Addition?
Growing Family Needs
As families expand, extra space becomes essential. A second-storey addition adds bedrooms, bathrooms, or play areas, allowing your family to stay comfortable in the same home.
Limited Land Space
Increasing Property Value
Types of Second-Story Extensions We Offer

Full Second Storey Addition
Full Second Storey Addition

Partial Second Storey Addition
Partial Second Storey Addition

Modular Second-Storey Addition
Modular Second-Storey Addition

Over-Garage Extensions
Over-Garage Extensions

Contact our friendly team today to book your space renovations, you can trust our team to create the space of your dreams!
Our Step-by-Step Process for Second Story Additions
Initial Consultation
Our first step in the design and building process is a deep-dive consultation. Our team then assesses your home’s structure to ensure it can support a second-storey addition.
Design and Planning
We start by creating a detailed plan for your second storey addition. Our team then assesses your home’s structure to ensure it can support a second-storey addition.
Construction Phase
Our expert builders work on a strict schedule, employ all high-quality materials, and maintain an open line of communication throughout the procedure.
Final Inspection and Handover
After your project is completed, we walk you through the finished space, make final adjustments if needed, and provide all documentation, leaving you with a ready-to-use addition.
Why Choose Us for Second-Story Extensions in Sydney?
Quality Guaranteed Work
We strive to provide superior quality service with the best materials available. Our second-storey expansion is designed to stand the test of time, offering you maximum value for your investment.
10+ Years of Experience
Having an experience of more than a decade, our experienced team knows what works well according to Sydney’s variety of architectural styles, council regulations, and construction challenges.
Stress-Free Experience
From conceptualisation to completion, we take care of all the necessary approvals, designs, and building requirements with minimal impact, with open communication and professional project management.
Quality Workmanship
We take great pride in our detail-oriented craftsmanship. We focus on every minute detail, style, function, and longevity, ensuring your second-floor addition complements your existing home.
What Our Client Say About Us
EXCELLENT Based on 249 reviews Ecurb N2025-02-28Trustindex verifies that the original source of the review is Google. Professional effective efficient well recommend Maruf2025-02-24Trustindex verifies that the original source of the review is Google. It was a great and through service Micol Carmignani2025-02-24Trustindex verifies that the original source of the review is Google. Really great!! Staff were super friendly and the wasps at my window sill have successfully been removed!!! :)) Fabrizio Gottardo2025-02-17Trustindex verifies that the original source of the review is Google. Great service on time and received a any treatment and the boys where great Amazing pest control service thanks Mac and Jeff Katherine C.2025-02-17Trustindex verifies that the original source of the review is Google. Iconic Pest Solutions provided exceptional service in eliminating German cockroaches from my kitchen. They stood by their promise, returning for a second treatment at no extra cost to ensure the problem was fully resolved. Highly professional, reliable, and committed to customer satisfaction! natashya sherchan2025-02-12Trustindex verifies that the original source of the review is Google. Adam did a good job. Amazing customer service. Denzel Ndhlovu2025-02-10Trustindex verifies that the original source of the review is Google. Adam was great! He did a good job and had a very good attention to detail. He made sure everything was done to a high standard. Highly recommend! Aesun Jeon2025-02-06Trustindex verifies that the original source of the review is Google. Adam was friendly, and very helpful throughout the process. He explained everything clearly and made sure we felt comfortable and informed. Great service! Zabi Saedi2025-02-05Trustindex verifies that the original source of the review is Google. Adam did in an amazing job with my pest control needs. Providing friendly communication and overall quality service.
Other Services We Offer
Frequently Asked Questions
At Platform 88, we help you create the perfect design for your forever home. Contact us today to start your building journey with the right builder!
The timeline varies depending on the complexity and approval process, however, the duration from planning to completion is typically between 4 to 6 months.
It depends on the extent of the work. In most cases, homeowners can remain in the home while work is ongoing with minimal disruption.
Yes, the majority of second-storey additions require approval. We take care of all permits and local building code requirements.
The second storey addition costs vary depending on size, materials, and complexity. On average, second-storey additions cost range from $150,000 to $400,000.
Professionals need to perform a structural assessment to see if the ground floor of your home could bear an additional weight. Our team provides comprehensive evaluations to ensure there is enough room before construction.