No.12 2019

House Notes – No.12

With a much loved family home in a character protection area we wanted to enhance the house (nearly all of the 1928 structure) with a contemporary extension that addressed sustainability whilst retaining the character of the original without major change. In doing so we demolished only the ‘sleepout’ and laundry as well as the outside toilet and recycled timber for the new deck and bricks for pathways.

The extension provides us with a new living space and main bedroom with ensuite. Polished concrete floor for thermal mass, double glazing, insulation, high louvres and solar orientation the living area has been successful in moderating the climate. Only ceiling fans have been needed even in the heat of summer, aided by a shade sail to keep the direct sun away. By comparison the original rooms are noticeably hotter in summer and colder in winter. Our intent was to reduce energy consumption, including solar HWS, and reuse materials where possible. The house was able to meet our needs as we get older with ease of access inside.

All this was to be complemented by a garden with new trees, native plants and succulents.

Designed by Patrick Irwin Architect and built by Wandoo Design and Construct

Sustainability Features

Years Open
2019
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Draught proofing
      Efficient lighting
    • Passive heating cooling:
    • Cross ventilation
      Passive solar designed home
      Thermal mass
    • Active heating cooling:
    • Ceiling fans
    • Water heating:
    • Solar hot water (flat panel)
    • Water harvesting and saving features:
    • Low flow shower heads
      Drip irrigation
    • Average water consumption per day:
    • 0.1kL
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight
    • Window Protection:
    • Blinds
      Shade Sails
SUSTAINABLE & RECYCLED MATERIALS
    • Recycled and reused materials:
    • Salvaged boards and beams, recycled jarrah kitchen bench
    • Sustainable materials:
    • Retention of nearly all of the 1928 structure Double glazed sliding doors with split frame - timber interior and aluminum exterior Matrix cladding
    • Recycled and reused materials:
    • Doors
      Paving
      Timber

INSULATION SPECIFICATIONS
    • Insulation Type:
    • Under-roof
      Internal walls
      External walls
    • Under Roof Insulation Type:
    • Insulated panels
    • Under Roof Insulation Rating:
    • R4.84
    • Internal Walls Insulation Type:
    • Polyester
    • Internal Walls Insulation Rating:
    • R4.16
    • External Walls Rating:
    • R4.16
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • Yes
    • Average Daily Energy Consumption:
    • 2.7kwh
COSTS AND COST SAVINGS
    • Total cost of home when constructed:
    • $395,000
    • Cost estimate of sustainable home/features:
    • included in overall cost
    • Estimate of annual savings:
    • TBD
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 170m2
    • BAL Rating
    • BAL – Low: There is insufficient risk to warrant specific construction requirements
    • Roof
    • Metal (Zincalume)
    • Wall Materials
    • Lightweight construction (timber frame)
    • Window and Door Types
    • Double glazing
      Louvre windows
      Low-e, films
      Sliding windows/doors

    • Window and Door Types
    • Louvres in low-e glass
    • Universal design accessability
    • Disability access
      Universal access
    • Universal Design Features
    • 80cm minimum door opening width
      Hobless showers
      Lever handles for doors (no knobs)
      Ramps and path gradients must be less than 20:1
      Rocker style light switches
      Semi recessed basins
      Shower head on rail for various heights
    • Number of bedrooms
    • 3
    • Number of bathrooms
    • 2
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Native plants
      Water wise plants
    • Waste Reduction Practices:
    • Compost all food scraps
      Recycle
      Repair
HEALTHY HOME FEATURES
    • Healthy home features
    • Airtight house design
      Cabinet design to minimise dust collection
      Cross flow ventilation
      Indoor plants for air filtration
      Natural light and ventilation
      Natural oil sealer/finishes
Location
Bayswater WA 6053
    • Housing Type:
    • Standalone House
    • Project Type:
    • Extension and renovation
    • Builder
    • Wandoo Design and Construct
    • Designer
    • Patrick Irwin Architect

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