» Perry Lakes House

Perry Lakes House

We wanted an energy-efficient home that would make best use of Perth’s sunshine and sea breezes whilst being modern, easy to maintain and suitable for us to live in as we grow older beyond retirement.

We chose a 375m2 block that runs east–west, with nothing on the northern side to block solar access. We designed the house so we could live entirely on the ground floor (kitchen, study, lounge, main bedroom, garage and laundry), with an area for visitors upstairs (two bedrooms, bathroom, lounge and balcony).

We use external shade sails in summer, which we take down in winter, helping us control internal temperatures.

The most impressive feature of the house we have experienced so far has been how warm it gets on a sunny winter’s day – we have scarcely needed to run the reverse-cycle heating (perhaps just twice for 30 minutes at a time). Other features are the amount of light that comes in, the openness of the living area, the wide doorways, huge garage for all our ‘stuff’ – and it is really comfortable!

Sustainability Features

ENERGY AND WATER EFFICIENT FEATURES

- Energy efficiency:
- Efficient lighting
- Passive heating cooling:
- Cross-ventilation
  Passive solar designed home
  Shading
  Thermal mass
- Active heating cooling:
- Ceiling fans
  Split system air conditioner
- Water heating:
- Solar hot water (flat panel)
- Energy Efficient Lighting
- LED lights throughout
  Natural daylight
  Skylight
- Window Protection:
- Blinds
  Deciduous tree/vegetation
  Drapes/curtains
  Pelmets
  Shade sails

SUSTAINABLE & RECYCLED MATERIALS

- Sustainable materials:
- Solar passive design: volumetric capacity of wall and floor mass to the volume of air in the building and the placement of glazing in relationship to the mass coupled with specific airflow to give a good solar passive outcome. Low allergen wet areas. Universal access and ageing-in-place design.

INSULATION SPECIFICATIONS

- Insulation Type:
- Under-roof
  Ceiling
- Ceiling Type:
- Bulk – glass wool
- Ceiling Rating:
- R4.1
- Under Roof Insulation Type:
- Reflective foil
- Under Roof Insulation Rating:
- R1.3

RENEWABLE ENERGY SPECIFICATIONS

- All-Electric Home?
- Yes
- Energy star rating:
- 6.4 Stars
- Renewable energy used:
- Solar PV grid-connected
- Size of PV system:
- 6kW

COSTS AND COST SAVINGS

- Total cost of home when constructed:
- $780,000 (built in 2017)
- Cost estimate of sustainable home/features:
- $10,000
- Estimate of annual savings:
- $1000

HOUSE DESIGN SPECIFICATIONS

- House Size
- 245m2 ground floor, 90m2 upper floor
- BAL Rating
- BAL – Low: There is insufficient risk to warrant specific construction requirements
- Roof
- Metal (colorbond)
- Wall Materials
- Double brick
  Stone
- Window and Door Types
- Bi-fold
  Double hung
  Sliding windows/doors
  Skylights
- Window and Door Types
- Aneta double-hung windows
- Universal design accessability
- Wheelchair access
- Universal Design Features
- 80cm minimum door opening width
  Flush thresholds (no lip) to all external doors
  Hobless showers
  Lever handles for doors (no knobs)
  110cm minimum width hallways
  No stairs/steps
  No corner cupboards
  Power points at 60cm above floor level and 50cm from internal corners
  Space around toilets for ease of access in wheelchairs
  Tapware to be easily accessed from outside the shower
- Number of bedrooms
- 3
- Number of bathrooms
- 2

GARDEN AND WASTE REDUCTION

- Garden / Outdoors
- Drip irrigation
  Green walls
  Native plants

HEALTHY HOME FEATURES

- Healthy home features
- Airtight house design
  Cabinet design to minimise dust collection
  Cross-flow ventilation
  Natural light and ventilation

Perry Lakes House 2018

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Perry Lakes House

Sustainability Features

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