Single-family homes
Energy self-sufficient homes, robotically built and finished in the factory.
Industrialised housing · Australia · Spain · U.K.
High-output manufacturing of social & affordable apartmentsfor BTR, aged care and volumetric offsite accommodation.
Zerowatt Homes designs and manufactures affordable, energy-efficient housing off-site, for governments, housing agencies and aged care providers. Faster delivery, less waste, lower cost, and every asset structured for long-term institutional ownership.
Precision±2 mmCapacity3,000 apts / yr / factoryMaterials recyclable90%Assembly lines6 per factoryConcessions25–65 yrs · CPI-linkedUnits delivered by team2,000+TrackingBarcode · QR · MESHeightMid-rise
Precision±2 mmCapacity3,000 apts / yr / factoryMaterials recyclable90%Assembly lines6 per factoryConcessions25–65 yrs · CPI-linkedUnits delivered by team2,000+TrackingBarcode · QR · MESHeightMid-rise
Who we are
A vertically integrated housing platform, engineered off-site.
Factory precision, robotics and repeatable design replace the delays and waste of traditional building sites. From high-rise towers to essential worker housing, aged care and mine-site accommodation, our homes are built once, to a higher standard, in a fraction of the time.
3Markets in build & delivery
5,300 m²NSW factory floor
3,000Apartments / yr, one factory
2,000+Modular units delivered by the team
The platform
Factory to pension fund, in one loop.
We originate inside government frameworks, make our own supply, hold each asset in its own SPV and sell the income to pension capital. Then the capital goes round again.
What we build
BTR for government. Homes for aged care.
One industrial line, designed and built for government, state housing agencies and aged care providers, from single-family homes to mid-rise apartment buildings.
Programme AGovernment BTR
Rental homes for nurses, teachers and key workers under long-dated, CPI-linked government concessions.
Programme BAged care
Factory-built care residences, delivered faster on the same industrial line as our housing.
Short cycleRemote & site
Mine-site and remote workforce accommodation, delivered in weeks from Smeaton Grange.
Where we build
Manufacturing platforms across three markets.
● Live · 34.04°S 150.76°EAustralia
A 5,300 m² factory at Smeaton Grange, NSW, for essential worker housing, aged care, disaster relief and mine-site accommodation.
● Opening · Madrid · Barcelona · MálagaSpain
An automated platform opening in three centres, Madrid, Barcelona and Málaga, for long-term, government-backed housing programmes.
Track record · 51.51°N 0.13°W
1,000+modules · towers to 23 storeys
United Kingdom
High-rise towers, PRS and housing association schemes, built to Scottish Gold and Zero Carbon standards.
Delivery partner
Sigma Management + Zerowatt Homes.
Sigma brings site feasibility, commercial structuring, government coordination and delivery governance. We bring MMC design, digital manufacture, compliance and installation. Together, one platform from site strategy to long-term operation.
Design→Manufacture→Install→Operate
For investors
Two ways in. One platform underneath.
Infrastructure-style income with equity upside. Choose exposure to the whole platform, or to the government-backed income from individual assets.
| Summary terms | Platform equity | Project income |
|---|---|---|
| Exposure | Factories, GIP platform, pipeline, SPV ownership | Individual BTR assets or annual vintages |
| Return driver | Manufacturing, development and capital recycling | Concession rent, then sale to pension |
| Counterparty | Diversified across programmes | Government housing authority |
| Indexation | Indirect | CPI-linked from year one |
| Recourse | Group | Non-recourse, ring-fenced SPV |
| Liquidity | Platform exit | Pension sale at stabilisation, or hold |
← About
High-speed, robotic
High-speed, robotic
MMC build.
Our own manufacturing platform that turns design into precision-built components and modules: automated, digitally governed and ready to scale.
From design to install
Total traceability, from design to assembly.
Data follows each component from digital design to on-site installation, so what is designed is what gets built. Exact, controlled information travels all the way to site.
Step 01 · Collaborative design
One shared digital model for every discipline.
Every project starts in a single collaborative BIM model. Architects, structural engineers and services designers all work on the same model, built in the open IFC standard and tailored to the group's own building components, so everyone is always looking at the latest version.
Each country has its own Technical Office that designs and calculates projects in the GIP software. Because the model already knows the component system, designs are buildable in the factory from the first sketch, not redesigned for manufacture afterwards.
What it controlsA single, shared digital model across all disciplines
- Architectural designLayouts and elevations drawn with the group's own library of panels, pods and modules.
- Engineering and calculationStructural and services engineering in licensed software adapted to the GIP system.
- Clash detectionAutomated design-collision and data checks find conflicts on screen, before anything is cut.
- Code complianceAustralian and Spanish building-code requirements built into the model.
- Design freezeThe coordinated design is locked and released to manufacturing.
Step 02 · Connected data
Design data becomes machine instructions.
Design for Manufacture and Assembly (DfMA) means each designed component is translated instantly into production, material and cost data. CAD/CAM files go straight from the model to the factory machines. Nothing is redrawn or re-keyed, so no information is lost between the design office and the factory floor.
The design information then travels with each component through manufacturing, transport and site assembly, together with its technical requirements and evidence of compliance.
What it controlsDesign data feeds manufacturing with no re-entry or loss of information
- CAD/CAM generationMachine files for cutting, forming and assembly created directly from the model.
- Factory nestingCutting plans optimised to get the most from every board and coil, minimising offcuts.
- Bills of materials and costQuantities and costs produced automatically from the design.
- Production schedulingComponents sequenced to the order the site will need them.
- AI assistanceAI agents draft plans, check data and build live dashboards for the team.
Step 03 · Manufacture & assemble
Robotic lines, tracked station by station.
A high-capacity, highly automated main line produces the components, feeding 2D and 3D assembly lines. A custom-built manufacturing execution system (MES) links every machine to the design data, and the ERP tracks every asset's movement in real time.
Each part is cut, formed, identified and sequenced to a ±2 mm tolerance, with quality recorded at every station. The process uses no water, around 90% of materials are recyclable, and more than 95% of panel offcuts are recovered for recycling.
What it controlsContinuous, traceable control of process, quality and output
- Panel compositionFibre-cement or gypsum-fibre boards bonded to an insulated core, then stacked ready for cutting.
- Robotic cuttingA robotic cell cuts, machines and labels each part from CAD/CAM instructions, separating waste automatically.
- Steel roll-formingLight-steel-frame profiles formed, punched and cut to the engineering data, then sequenced.
- 2D assemblyRobotic positioning, then fixing, insulation, services and closure before each wall is raised upright.
- Finishing and 3D modulesPanels finished or assembled into modules and pods, ready for dispatch.
Step 04 · On-site install
Every component traced to the point it is installed.
Finished parts leave the factory in sequenced stillages, in the order the site needs them. Foundations, services and civils are prepared in parallel with factory production, so site and factory finish at the same time and the building goes up quickly.
Every component carries its own identity, so the team always knows where each asset is, from the factory floor to its final position in the building. The result is a complete digital record for handover, with no cost or schedule surprises.
What it controlsEach component traced from design to the exact point it is installed
- Sequenced deliveryStillages loaded in assembly order, matched to the site plan.
- Site readinessFoundations, services and civils completed while the factory builds.
- Identified assemblyBarcode and QR codes confirm each component goes in the right place.
- CommissioningServices connected, tested and signed off.
- HandoverQuality, compliance and warranty records handed to the owner and operator.
Digital twin
One digital thread, from model to building.
Watch a facade travel the GIP digital thread: modelled in BIM, framed in light steel, split into coded panels, nested for cutting to ±2 mm, then assembled in sequence.
One factory, six lines
An integrated factory: materials, assembly and 3D installation.
One factory runs six assembly lines, from panel production through to finished 3D modules.
±2 mmManufacture, assembly & install
3,000Apartments / yr, one factory
90%Of materials recyclable
0On-site cutting waste
Build systems
Three systems. One production line.
Restricted · Partner access
Inside the Spanish platform.
From digital model to robotic panel line to a finished residential block: the GIP system at work in Spain.
No PIN? Request one through investor relations.
Film locked · 2:25 · PIN required
GIP · Con-tech
The software is the factory.
GIP is the group's construction-technology platform: design software, manufacturing execution and a standardised building system, proven on completed projects and owned by the group, running in every ZWHI factory.
- One standardised building system across every factory
- Barcode, QR and MES tracking on every component
- 06:00:01DESIGNBIM model locked · rev C
- 06:00:14OPTIMISEnesting complete · waste minimised
- 06:01:02CAD/CAMmachine files generated
- 06:12:40PRODUCErobotic framing · line 1
- 09:30:05TRACKpanels barcoded · MES synced
- 14:00:00DELIVERsequenced kit dispatched
← About
Products
A fully flexible MMC design and build system, from single-family homes to mid-rise apartment buildings. Single-family homes can be energy self-sufficient; apartment buildings are best in class.
Programme A
Government build-to-rent
Rental housing for nurses, teachers and key workers, delivered under 25- to 65-year government concessions on public land, CPI-linked from year one and structured from day one for pension ownership.
- Federal, state and community housing provider programmes
- Government-backed housing and BTR programmes in Spain
- Non-recourse SPV per project
Programme B
Aged care & retirement living
Our team has spent three decades manufacturing affordable, social and essential worker housing. We bring the same factory-first approach to aged care, so providers get faster builds, higher quality and lower cost.
- Bedroom and bathroom modules lock around a shared corridor spine
- Panel or hybrid systems configured to any care layout
- Built on the same industrial line as our housing
Also from our lines
Homes, towers and remote sites.
Multi-storey
Panel, volumetric and hybrid mid-rise apartment buildings.
Remote & mine-site
Portable workforce camps and disaster relief accommodation, delivered in weeks.
For public partners
More homes in less time. Better homes.
Key benefits for federal, state and community housing providers.
Public & affordable housing
More output, more predictable schedules and capacity for large-scale programmes.
Quality industrial jobs
More stable, safer and measurable work, and more accessible to women in the sector.
Sustainability & territory
Less on-site waste, recyclable materials and local industrial activity.
← About
● Live · Smeaton Grange, New South Wales
Australia
Our 5,300 m² automated factory at Smeaton Grange anchors the Australian platform: affordable and essential worker housing, aged care and retirement living, portable workforce camps and disaster relief accommodation, all on advanced robotic production.
5,300 m²Factory floor area
30+ yrsMine-site & remote housing experience
4Sectors served on one line
±2 mmManufacturing tolerance
Focus areas
Four sectors. One factory.
- Affordable and essential worker housing
- Aged care accommodation
- Mine-site and remote workforce housing
- Disaster relief accommodation
Sigma Management handles project management, the government interface and pipeline origination in Australia.
The factory
Industrialised, roboticised production under one roof.
Rapid-deployment camps
Small remote campsites, ordered and delivered in weeks.
← About
● Opening · Madrid · Barcelona · Málaga
Spain
An automated manufacturing platform opening in three centres, Madrid, Barcelona and Málaga, delivering low-cost, high-volume production for long-term, government-backed housing programmes across Spain.
3,000Apartments / yr capacity
90%Materials recyclable
±2 mmManufacturing tolerance
3Centres: Madrid, Barcelona, Málaga
- Government-backed housing programmes
- Fully automated production on our own GIP system
- Low-cost, high-volume delivery
- Three centres: Madrid, Barcelona and Málaga
Completed projects
The GIP system, proven on completed projects.
Published projects across private residential, public housing and care, delivered with the GIP system, which the group will own.
Two residential blocks
Private residential, 2,850 m². 2D industrialised panel integrated with a wider 3D system.
36 social housing units
Public residential, 2,200 m², 16-week build. Industrialised facade on a concrete structure.
54 residential units
Private residential, 3,000 m², 16-week build. 2D, 3D and conventional systems on one project.
Care home
Community facility, 2,800 m². Structural frame and self-supporting facades for care-sector infrastructure.
← About
Track record · High-rise & residential
United Kingdom
Our UK team's track record spans high-rise residential towers, PRS developments and housing association schemes, built to Scottish Gold and Zero Carbon standards. Meet the UK team →
Projects the team delivered
Among the tallest modular builds in the UK.
| Project | Location | Scale | Result |
|---|---|---|---|
| Addiscombe Grove | Croydon | 21 & 9 storeys | 323 modules forming 155 apartments |
| Creekside Wharf | Greenwich | 12 & 23 storeys | 653 modules forming 249 apartments, incl. corridor cassettes and roof |
| Hathersage Road | Manchester | 7 storeys | 154 modules, 136 studios, manufactured in 8 weeks |
| Housing association scheme | Alva | 48 units | Scottish Gold Standard, Zero Carbon equivalent |
| Housing association | Oxford | 2 homes / day | Occupancy-ready within two weeks of installation |
| Bespoke modular | — | Core modules | Mixed into high-end floor plans and finishes |
← About
Team & partners
Execution, technology, demand and delivery, brought together through experienced leadership and embedded partners.
Institutional & investment leadership
Senior public and private equity and investment banking leadership from major international financial institutions.
Industrialised construction
Deep MMC expertise across Europe and Australia: 2,000+ modular units delivered, with advanced systems design, robotics and automation.
Government & large projects
Defence, infrastructure, aged care and master-planned developments, with national supply chains and government relationships.
Founders
GK
George Katzaros
Co-Founder & Joint CEO, ZWHI
30+ years in listed equities and private equity, from Hambros Bank (1986) to CEO of Flemings Spain and MD at JP Morgan, Cazenove and ABN AMRO. Co-founded ZWH in 2008.
PH
Paul Harrison
Co-Founder & Joint CEO, ZWHI
30+ years in public and private equities, from Wood Mackenzie, Hill Samuel and County NatWest WoodMac to EVP of European Equities Capital Markets at Salomon Brothers. Has founded, listed and advised businesses on NASDAQ and AIM.
GIP founding team & Spanish roll-in
CC
Charlie Cruz
Spanish roll-in
Joined ZWHI's senior management in 2025. Began in 1980 in his family's group spanning food manufacturing, distribution, construction and logistics. In 1992 set up a plant bakery in southern Spain in a JV with Associated Foods PLC, serving 25 years as MD and then Chairman. Consultant to Savills Gibraltar since 2017 on development appraisal and Madrid valuations, with five years' close work alongside Spain's industrialised component manufacturers.
F
Founder, GIP
Tech Lead, Con-Tech IP
Leads technology and product for the con-tech manufacturing system across all territories: Spain, NSW and future markets.
SP
Sergio Pereira
GM, Manufacturing Deployment, GIP
Background in industrialised construction and housebuilding. Heads manufacturing system deployment across factories.
SE
Chief Software Engineer
GIP
Leads software engineering within the GIP team, alongside the founding technology function.
ZWH Australia
KB
Ken Boundy
Chairman, ZWH Australia
35+ years' corporate experience: EGM International, James Hardie Building Products; CEO, Goodman Fielder Asia; MD, Tourism Australia. NED, Timberlink Australia and The ABX Group.
AC
Andrew Cutler
Business Development Director
25 years' business development across aviation, telecoms and technology. At Volante Integrated Technology, grew the business from 7 to 400+ employees.
AY
Andrew York
MD, Portable / Off-Site Manufacturing
Leads the existing off-site manufacturing business at Smeaton Grange, with mine-site and remote site-office accommodation contracts.
GP
Greg Poole
Project Development
Former Head of Wimpey Australia; land buyer and developer of 1,400+ residential lots; Project Director, Oran Park Town (9,000 homes). DHA board advisor 2018–2024.
ZWH UK
WM
Wayne Morgan
COO, UK
Founder of Elements Europe Ltd, one of the largest offsite modular companies in the UK. Since 2005 has designed and delivered 2,000+ modular homes, apartments, student rooms, hotel rooms, schools and care homes. Multiple awards for innovation in offsite.
GT
Griff Thomas
Engineer, UK
25+ years in off-site design and engineering for affordable housing. Designed the first modular homes to Scottish Gold Standard and the first modular care home to achieve BREEAM Excellent. Former Technical Director, F1 Modular, and Head of Design, Swift Manufacturing; co-founder of the SLSL affordable housing system.
Partners
Sigma Management
Australian project management, government interface and pipeline origination.
Government partners
Spanish public authorities and Australian state and federal housing programmes.
Capital partners
Aged care operators, and pension funds and insurers as long-term owners.
← Products
Government build-to-rent
Essential-worker housing, built to stay.
Secure, professionally managed rental homes near the hospitals, schools, police stations, care services and transport hubs that depend on essential workers. Delivered with our partner Sigma Management.
Workforce retention
Housing is workforce infrastructure.
Governments cannot recruit their way out of critical shortages if essential workers cannot find stable housing near the communities they serve.
HealthEducationPoliceCareTransport
Today
Recruit. Train. Lose. Repeat.
- Recruit new staff
- Train and onboard
- Rent and commute pressure
- Vacancy and cost
Housing pressure turns recruitment and training investment into recurring attrition.
Essential-worker BTR
Secure, long-term rental homes near priority employment, with agency nomination rights and professional management.
With BTR
A stronger employment offer.
- Attract
- A more competitive offer in hard-to-staff locations
- Retain
- Longer tenure and less workforce churn
- Serve
- More stable frontline services
Long-term public value
Keep the land. House the workforce. Preserve public value.
A long-term BTR or reversionary structure brings in external capital to deliver homes without selling strategic public land.
- Retain landFreehold and strategic control stay public.
- Grant tenureGround or reversionary tenure, tested site by site.
- Mobilise capitalExternal capital funds delivery under agreed risk allocation.
- MMC deliversDigital design, local manufacture, factory QA and site assembly.
- BTR operatesRent supports finance, operations and lifecycle care.
- Value preservedLand and improvements remain or return to public control.
Government sets
Land · worker cohort · tenure · policy controls
The delivery partnership carries
Capital · compliance · MMC · operations · lifecycle
MMC delivery pathway
Site and factory work in parallel.
Site readiness and factory production run at the same time and meet at installation. That is what makes essential-worker BTR repeatable.
Site
- Screen site and use
- Approve planning and code
- Enable services and civils
- Ready foundations and utilities
Factory
- Design in digital DfMA
- Standardise components
- Manufacture with factory QA
- Ready panels and modules
Install and commissionControlled site assemblyEssential-worker BTRA repeatable delivery programme
Public returns
One platform. Four lasting returns.
Workforce resilience
Stronger attraction and retention of essential workers across health, education, policing, care and transport.
Housing supply
Secure, professionally managed rental homes near priority jobs, services and transport.
Public asset value
Retained land, long-term policy control and residual or reversionary value.
Industrial capability
Local manufacturing, digital delivery skills, apprenticeships and supply-chain jobs.
Evidence-gated delivery
Engage now. Commit when the evidence is complete.
A five-gate pathway lets government test the model, with a proceed, revise or stop decision at every stage.
- 01EngageNominate leads and objectives
- 02ScreenShortlist site and worker cohort
- 03TestBTR, capital and risk model
- 04AssureStatutory, technical, commercial and delivery evidence
- 05DecideProceed, revise or stop
← About
Delivery partner · Australia
Sigma Management + Zerowatt Homes
Our Australian delivery partner for essential-worker BTR, aged care and social housing, taking projects from site strategy to long-term operation.
About Sigma
A Sydney-based project and development manager.
Who they are
- Founded in 2018, head office in Sydney, NSW
- Works for government, not-for-profit and faith-based clients
- Specialises in social and community infrastructure
- Sectors: education, affordable and community housing, health, civic and heritage
- Involved from early strategy right through to handover
What they bring
- Strategy and capital planning for infrastructure programmes
- Feasibility, options testing and business cases
- Full project management, from planning to handover
- Development structuring across landowners, funders and regulators
- Treasury submissions, precinct planning and integrated delivery
The partnership
Sigma governs the project. We build it.
Two complementary halves of one delivery platform for essential-worker BTR, aged care and social housing in Australia.
Sigma Management
- Site feasibility
- Commercial structuring
- Government coordination
- Governance and delivery
Zerowatt Homes
- MMC design and DfMA
- Digital manufacture and QA
- Australian compliance
- Production and installation
Design→Manufacture→Install→Operate
Credentials
Australian delivery and governance credentials.
SydneyAustralian-owned, NSW head office
SCM1191NSW Government prequalified
ISO9001 · 14001 · 45001 certified
30+ yrsSenior project, design and risk management
Governance pathway
Seven stages, from first site to handover.
Every project moves through the same governed sequence, so the factory only builds what has been approved and funded.
- 01QualifySite, demand, customer, operator and funding
- 02StructureFeasibility, tenure and business case
- 03ApprovePlanning, authorities and stakeholders
- 04FreezeCompliance, coordinated design and DfMA freeze
- 05CommitContract, funding and manufacturing release
- 06DeliverProduction, logistics, site readiness and install
- 07OperateCommissioning, handover and warranty
Shared values
Why the partnership works.
- Projects shaped around local needs and regional priorities
- Government, mission-led and private partners working as one team
- Involvement from the earliest stage, well before construction
- Delivery on time and on budget, built to last
← About
Let's build something better.
Whether you're a government partner, housing association, aged care provider or investor exploring the platform, we'd like to hear from you.
Factory & office
Smeaton Grange, NSW 2567, Australia
Investors, government, aged care and site enquiries.
info@zerowatthomes.com