Sowden Building Solutions

Sowden Building Solutions Balmain’s Fully Licensed Master Builder and Sustainable Renovation Expert By sorting onsite, we always recycle what we can and strive to minimise waste.

Sowden Building Solutions provides fully licensed home improvement services in Balmain. Owner and operator Nick Sowden, a qualified builder, focuses on providing high quality carpentry and building construction services in Sydney’s Inner West. His adept knowledge in home renovations and remarkable passion for sustainable building practices are key to creating specifically designed innovative homes

. Specialising in a wide range of residential building projects, our skilled professionals ensure alterations, room additions and carpentry work that will make your property a healthier and more comfortable place to live in. Whether you’re aiming for a Victorian, Federation or Heritage inspired home, you can depend on us. Sustainability
Sustainability is an integral part of our focus, ingrained in everything we do. For us, it’s about creating a home that’s comfortable, healthy to live in and cost-efficient to run. We carefully select products and materials that will create little or no off-gassing in your home. We use LED lights, grey water systems, solar panels, zero VOC and non-toxic paints and double glazing or low-e glass. We also provide a level of insulation above and beyond what’s required by Australian building codes. Saving you time and money
We are equipped to give your personal sanctuary an enhanced look that will certainly exceed your expectations but not your budget. Enjoy your comfortable home regardless of the season, without having to spend unnecessary money on heating or cooling. We are the experts you can trust for:
- Alterations and additions
- Building construction
- Green building
- Heritage home renovations
- Victorian home renovations
- Federation home renovations

Turn your dream house into a reality - Make an appointment with the master builders at Sowden Building Solutions today.

02/05/2026

“Quality isn’t a result, it’s a process.” This was my favourite quote from the 28th International Passivhaus Conference in Essen, Germany. It perfectly sums up the craftsman’s mindset: delivering a quality home requires rigorous, well-thought-out processes from day one.
Here’s what’s happening on the global stage:
The 3.5°C Jump: While the world average rise is 1.2°C, areas like Innsbruck, Austria are already 3.5°C over the 1900 baseline. This is pushing active cooling to the forefront of Northern European design.
Efficiency in the Details: We looked at how pre-detailing—like airtighting beam pockets before installation—saves time and cost while ensuring performance.
The Retrofit Revolution: From Greek islands to NY firehouses, the EnerPHit standard is proving that we can retain the “embodied carbon” of existing buildings while hitting peak efficiency.
My favourite site visit? A 1937 neighbourhood undergoing a massive retrofit. They’re using prefab insulated facades (windows included!) and craned-in roofs to move buildings from ‘H’ to ‘A+’ class without moving the tenants out.
It’s inspiring to see the global drive to create healthy, comfortable, and efficient spaces.

17/02/2026

Annandale high performance home is well under way, designed by Tracy from Connected Design. We are working with Eclipse Passive House for our prefab wall which will be craned into our tight access site

16/12/2025
12/10/2025
I’m so excited to share that I’ve been awarded the HIA Australian GreenSmart Professional! 🌿🏆Since building one of Sydne...
29/08/2025

I’m so excited to share that I’ve been awarded the HIA Australian GreenSmart Professional! 🌿🏆

Since building one of Sydney’s first Hempcrete homes back in 2015, I’ve been passionate about driving sustainable construction forward – through educating others, collaborating on research, and working on certified PassivHaus EnerPHit renovations.

It means so much to have this work recognised, and I’m grateful for everyone who has supported me along the way 💚

Category partnered by HIA Insurance Services.

TOMORROW at Sydney Build Expo!Join Nick Sowden from Sowden Building Solutions, Tracy Graham from Connected Design and Di...
06/05/2025

TOMORROW at Sydney Build Expo!
Join Nick Sowden from Sowden Building Solutions, Tracy Graham from Connected Design and Dick Clark from Envirotecture as they dive into why low carbon materials are more important than ever in today’s world.

Topic: “Why Low Carbon Materials Matter Even More in a World Gone Mad”
When: 12pm | Date: 7th May
Where: ICC Sydney – Architecture & Design Workshops

It’s part of Australia’s largest construction & design show, and tickets are FREE!

Register now at: www.sydneybuildexpo.com
Don’t miss it!

At Sowden Building Solutions, passing down knowledge to our apprentices is a key part of what we do.While Matt is comple...
26/03/2025

At Sowden Building Solutions, passing down knowledge to our apprentices is a key part of what we do.

While Matt is completing his carpentry apprenticeship, he’s also learning valuable skills like balancing and commissioning a Heat Recovery Ventilation (HRV) system—along with ducting installation, outlet placement, and the reasoning behind these processes.

Our apprentices work alongside all trades on-site, gaining insight into different roles and understanding the sequencing required to keep projects running smoothly.

The goal? To develop well-rounded tradespeople who not only master their own craft but also appreciate how other trades contribute—helping to streamline construction and train the next generation of builders.

Retrofitting is key to decarbonizing our built environment, and I’m thrilled to be part of the EnerPHit / PH Retrofit Wo...
20/03/2025

Retrofitting is key to decarbonizing our built environment, and I’m thrilled to be part of the EnerPHit / PH Retrofit Working Committee with . Can’t wait to contribute to shaping industry guidelines and advocating for high-performance retrofits!

Sowden Building Solutions completed the Dulwich Hill Hempcrete home in 2021, and we’re excited to share that it has been...
14/03/2025

Sowden Building Solutions completed the Dulwich Hill Hempcrete home in 2021, and we’re excited to share that it has been featured in Sydney Home Design + Living magazine!
This was another fantastic project in collaboration with for wonderful clients.
We transformed the space by removing the asbestos-filled rabbit warren at the back of the house, creating a spacious open-plan living, dining, and kitchen area, plus a generous outdoor kitchen and dining space.
Sustainability was at the heart of this build:
✅ Insulated slab
✅ Hempcrete walls
✅ uPVC windows and doors
✅ SIP (Structurally Insulated Panel) roof
✅ Gas abolished & replaced with solar PV
✅ Domestic hot water heat pump
A beautiful, energy-efficient home designed for the future!

PassivHaus podcast 225: Transforming Sydney’s Heritage Houses with Nick Sowden. In this episode of the Passive House Pod...
04/03/2025

PassivHaus podcast 225: Transforming Sydney’s Heritage Houses with Nick Sowden.

In this episode of the Passive House Podcast, Matthew Cutler Welsh speaks with Nick Sowden of Sowden Building Solutions about the electrification of homes in Sydney, the shift away from gas, and deep energy retrofits. Nick shares insights on insulation upgrades, solar adoption, and how heritage homes can be transformed into high-performance, energy-efficient spaces. Plus, we discuss Australia’s growing incentives for electrification and why the transition to clean energy is becoming easier than ever.
https://share.transistor.fm/s/9a230763

And that’s a wrap! What a fantastic 2024. We have just finished off an amazing EnerPHit project for amazing clients. Eve...
20/12/2024

And that’s a wrap! What a fantastic 2024. We have just finished off an amazing EnerPHit project for amazing clients. Everyone has pulled together to make this happen. Thank you to everyone involved. On to 2025, bring it on!

Address

43 Lawson Street
Balmain, NSW
2041

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 5pm
Thursday 7am - 5pm
Friday 7am - 5pm
Saturday 9am - 5pm

Telephone

+61433323513

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