CONCEPT TO COMPLETION
At H4 we have a variety of resources to help you get started, before you make any large financial decisions, our unique approach as been founded on years of experience.
CUSTOM DESIGN & BUILD SOLUTIONS
Your Step-by-Step guide to a better Home Design and Building Process
We keep the process simple
Step 1
Concept Design
Step 2
Design Development
Step 3
Tender Management
Step 4
Construction
Construction Costs Calculator
This calculator helps you to estimate the minimum and maximum range of your possible project costs.
Costs provided are an average price, allowing for preliminaries, builders profit and overheads. Costs can provide no more than a rough guide to the probable average cost of your project and can vary significantly based on site conditions, Design ,and fit out and general scope of works.
At H4 one of our key differences, our process is designed to ensure that you have early information about your project cost, without having to spend thousands upfront.
Also our building tendering process , building system, including trades and suppliers, ensures you are getting the best possible market rates for your project.
- Please select form this link :
- Project type: 4br brick veneer home , level block, unique design
- City you are building
- Quality of finish – view Low /Medium
- Enter estimated Floor area in m2
- Calculate
- NOTE:
COMPARE BUILDING QUOTES
At H4 we offer great value for your new home or renovation project. Below please find some of the latest project costs and comparison table. We provide up to 4 building quotes from our trusted building teams.

HOW WE BUILD & WHY?
Building Science and Technology have improved dramatically in the last few years, Government and industry bodies are struggling to keep up and at cross roads with legislation.
The National Construction Code (NCC) sets residential building standards to a “minimum” acceptable or “deemed-to-satisfy solution”.
In an extremely competitive environment most building companies (home builders) have no choice to provide only “minimum requirements” in order to compete. Unfortunately this is giving all of us very poor performing and built quality homes. The Code comparatively to other countries, also DOES NOT REQUIRE measurable building performance standards.
MINIMUM STANDARDS = MINIMUM PERFORMANCE
5 KEY ELEMENTS that have been identified regardless of home design/budget/climate zone, in order to produce a Healthy and Thermally efficient Home.
1-Quality Glazing, 2-Continuous Insulation, 3- Air Tightness, 4- Eliminate Thermal Bridging, 5- Ventilation.
Experience the difference of an H4 Living Home




NATIONAL CONSTRUCTION CODE (NCC)
- A – Glazing
- – Single Glazing AS 2047 Ordinary annealed glass.
- B – Insulation
- – To meet the Minimum “Deemed to Satisfy” basic ‘R’ value insulation to walls & ceilings.
- – Sarking only required for Tiled Roofs.
- – No anti condensation blanket required to roof.
- – Common use of low cost/quality wall wraps.
- C – Air Tightness
- – Poor air sealing, air tightness testing is not required by the National Construction Code.
- – High air changes/hour -No Testing required.
- – https://www.theaustralian.com.au/business/business-spectator/air-leakage-the-next-big-insulation-test/news-story/2334a2894a55695bdb8be48937095a8d
- D – Thermal Bridging
- No attention to detail and not code compliant -so very little attention is required to minimize thermal bridges.
- E – Ventilation
- 5% Of floor space /area -if no ceiling fan effective cross flow ventilation. High use of cooling and heating appliances.
- https://www.news.com.au/lifestyle/health/health-problems/nsw-homes-are-being-engulfed-by-mould/news-story/7f2eb2ab600871353e046060a6276456
- NOTE: Minimum standards = Minimum Thermal Performance. Homes continue to be too Hot in Summer and too Cold in Winter and Unhealthy proved by thousands of homes nationwide with high levels of moisture and mould build up.
H4 Standard
- A – Glazing
- – EnergyTech™ + SolTech™ Insulating Low-e performance glass.
- B – Insulation
- – High ‘R’ value insulation to walls, Floor, Ceilings & Roof.
- – External wall wrap vapour permeable membrane designed to allow moisture to escape /twice as permeable than most wraps -exceeds AS/NZ 4200.
- C – Air Tightness
- – Air sealing, extra care with airtightness.
- – Seal/Tape penetrations minimize air leaks.
- D – Thermal Bridging
- – Careful attention to minimize thermal bridging.
- – Void forming slabs where possible (Waffle Pod or Cupolex®) under slabs.
- – Thermal break strips on steel frames.
- E – Ventilation
- – Roof & Eaves ventilation, SupaVent -exhaust heat& moisture from roof without use of elec. Energy.
- – Cross flow ventilation attention to all design.
- – Vented & drained wall cavity to reduce mould/moisture build up, between cladding and structural frame.
- NOTES: H4 Standard Inclusions to the “Building Fabric’ exceeds the National Construction Code , based on building science , an holistic approach to a better /healthier built home regardless of building budget .We do not compromise in our High Standards, and Nature will thank you.


All H4 Standard Homes can easily be upgraded to PassivHaus
- A – Glazing
- – Double or Triple glazing with ThermoTech with Low-E coating/Argon Gas filled.
- B – Insulation
- – High ‘R’ value insulation to walls, Floor, Ceilings & Roof.
- – Solitex Extasana External wall wrap-High performance ,low vapour permeable ,high water resistance membrane -exceeds AS/NZ 4200.
- – Intello -High Performance moisture control and air tightness membrane.
- – Additional Services Cavity to External Walls.
- C – Air Tightness
- – Below 0.6 air changes per hour.
- – Additional seal/tape/protect.
- – Blower door air pressure test certification of performance.
- D – Thermal Bridging
- – Designed to minimise all possible thermal bridging.
- – 50mm XPX insulation to under slabs where applicable.
- – Void forming slabs where aplicable (Waffle Pod or Cupolex®) under slab.
- – Thermal Performance test report.
- E – Ventilation
- – Heat/Energy Recovery Ventilation throughout.
- – Vented & drained wall cavity to reduce mould/moisture build up , between cladding and structural frame.
- NOTES: Proved and tested /measured over 55000 buildings.




