First-Floor Additions Sydney

First-Floor Addition Builders Sydney

Planning to add another level to your home? Acme Built specialises in first-floor additions and second-storey extensions across Sydney's Eastern Suburbs, Inner West and Inner City.

Whether you're adding extra bedrooms, a new master suite or additional living space, we manage the construction with honest advice, clear communication and an experienced builder overseeing your project from start to finish.

What's Involved in a First-Floor Addition?

A first-floor addition can create valuable extra space without significantly increasing your home's footprint. Depending on your existing property and plans, the project may involve structural upgrades, a new upper-level floor system, additional bedrooms and bathrooms, a master suite, new staircases, roof construction and architectural glazing.

Whether you have your own architect or designer, or would like to engage one through Acme Built, we can help coordinate the design and construction process. We work closely with engineers, designers and specialist trades to manage structural requirements, integration with the existing home and construction through to completion.

Discuss Your Renovation

Who Are Acme Built

Acme Built started with a simple idea: building should be done properly.


What began with Mal working on the tools has grown into a family-run building company centred on honest advice, clear communication, and genuine care for every home we work on.

Learn More About Us

The Acme Built Difference

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Deal Directly With Your Builder

When working with us you will be meeting directly with the builder from day one and you will be advised throughout your project.

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Quality Custom Home Renovations

Every renovation is designed around your family, your lifestyle and the way you want to live. No two homes are ever the same.

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Clients Come First

We keep you informed with honest advice, open communication and personalised service from start to finish.

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Fixed Priced Contracts

Transparent fixed-price contracts give you confidence before construction begins, with no hidden surprises.

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Built To Last

We focus on quality materials, careful planning and exceptional attention to detail to create renovations that stand the test of time.

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Over 20 Years Experience

More than 20 years of renovation experience means better planning, smarter solutions and a smoother building experience.

  • Custom waterfront home renovation featuring a swimming pool, landscaped garden and outdoor entertaining area.

    Waterfront Family Home Renovation

    A complete transformation opening the home to its waterfront setting, with bespoke interiors, luxury entertaining spaces and a beautifully reimagined cabana.

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  • Luxury whole home renovation featuring premium natural stone, bespoke joinery and custom finishes in Double Bay.

    Luxury Whole Home Renovation

    A complete luxury home renovation featuring bespoke joinery, premium natural stone, exceptional detailing and carefully curated finishes, creating a timeless home for modern family living.

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  • Home extension and renovation creating open-plan family living and seamless indoor-outdoor entertaining in Randwick.

    Home Extension & Renovation

    A thoughtfully designed extension and renovation that transformed a traditional home into a light-filled family space with open-plan living and timeless finishes.

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  • Architectural home renovation with curved design, custom joinery and open-plan living in Bondi Beach.

    Bondi Beach Architectural Renovation

    A complete architectural renovation featuring custom curved details, premium finishes and seamless indoor-outdoor living, designed for modern family life.

    View Project

View Our Full Portfolio Here

Planning a First-Floor Addition?

Looking to create more space in your home with a first-floor addition? Tell us more about your project, and we'll be in touch to arrange an initial consultation.

Modern two-story house with outdoor patio, black spiral staircase, and lawn, featuring glass sliding doors, white chairs, and a cushioned seating area.
A modern freestanding white bathtub in a bathroom with marble walls and floor, a window with white blinds, and a green textured towel hanging on a hook on the wall.

What Our Clients Say

"Mal guided us through every detail and delivered exceptional quality. Our search for the right builder is over."

★★★★★
Jacquie – Bondi

"Communication was outstanding from start to finish. The workmanship exceeded our expectations, and we always felt informed throughout the renovation."

★★★★★
Laura M – Annandale

"We've trusted Malcolm and the Acme Built team on multiple projects. Their professionalism, quality workmanship and fair pricing keep us coming back."

★★★★★
Max T – Sydney