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Home report
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21 Galena Grove Lake Cathie NSW 2445
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BASIX certificate and NatHERS rating
This home has a NatHERS rating of 7 stars out of 10. Its BASIX certificate commits it to 2 kW of solar panels. Its NatHERS certificate lists insulation in the external walls, ceiling and floor. It beat its BASIX energy and water targets, scoring 82 against 70 for energy and 47 against 40 for water.
Key features
- Windows
- 27 windows and glazed doors: Aluminium A SG High Solar Gain Low-E; Aluminium B SG High Solar Gain Low-E; 50mm Carinya Classic Sliding Window SG 6EVSG and 3 more types
- Wall insulation
- R2.5
- Roof and ceiling insulation
- Ceiling R4.5, R3.5, roof Cont:Attic-Continuous 1.5, medium colour
- Hot water
- Electric heat pump with a performance of 31 to 35 STCs or better
- Air conditioning and heating
- 1-phase airconditioning, ducted (living area and bedroom)
BASIX certificate
- Energy score
- 82 (target 70)
- Water score
- 47 (target 40)
- Thermal performance
- Pass
- Materials score
- -95
- Heating load
- 28 MJ/m² a year
- Cooling load
- 22 MJ/m² a year
- Bedrooms
- 5
- Conditioned floor area
- 311 m²
- Unconditioned floor area
- 27.8 m²
- Site area
- 2,055 m²
- Roof area
- 315 m²
- Garden area
- 300 m²
- Climate zone
- NatHERS climate zone 15
- Hot water
- Electric heat pump with a performance of 31 to 35 STCs or better
- Solar panels
- 2 kW
- Fixtures
- Showerheads 4 star, toilets 4 star, kitchen taps 4 star, basin taps 4 star
- LED lighting
- Yes
- Cooktop
- Induction
- Clothes line
- Yes
- Maximum glazing
- aluminium frames 66.6 m², single glazing 66.6 m²
Heating
- Living area: 1-phase airconditioning - ducted; Energy rating: 4.5 star (average zone)
- Bedroom: 1-phase airconditioning - ducted; Energy rating: 4.5 star (average zone)
Cooling
- Living area: 1-phase airconditioning - ducted; Energy rating: 4.5 star (average zone)
- Bedroom: 1-phase airconditioning - ducted; Energy rating: 4.5 star (average zone)
Construction and insulation
- Floor: concrete slab on ground, waffle pod slab (no added insulation)
- Floor: above habitable rooms or mezzanine, particle board; frame: laminated veneer lumber (LVL) (fibreglass batts or roll)
- Garage floor: concrete slab on ground, waffle pod slab (no added insulation)
- External wall: external insulated façade system (EIFS); frame: timber - H2 treated softwood. all external walls fibreglass batts or roll+ foil/sarking
- External garage wall: external insulated façade system (EIFS); frame: timber - H2 treated softwood (foil/sarking)
- Internal wall: plasterboard; frame: timber - H2 treated softwood (no added insulation)
- Ceiling and roof: flat ceiling / pitched roof, framed - metal roof, timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)
Certificate 1819105S, issued 28 October 2025, from the council's DA documents.
NatHERS certificate
- Star rating
- 7 stars
- Rated with
- FirstRate5: 5.5.5a (3.22)
- Rated on
- 28 Oct 2025
- Wall insulation
- R2.5
- Ceiling insulation
- R4.5, R3.5
- Floor insulation
- R2.5, R4.5, R0.6
- Living room glazing by direction
- NE 17.6 m², SE 16.8 m², SW 2.5 m²
- All glazing by direction
- NE 24.2 m², SE 19.3 m², SW 12.2 m², NW 10.8 m²
Roof
- Cont:Attic-Continuous 1.5, medium colour
Window types
- ALM-001-03 A Aluminium A SG High Solar Gain Low-E: U-value 5.4, SHGC 0.49
- ALM-002-03 A Aluminium B SG High Solar Gain Low-E: U-value 5.4, SHGC 0.58
- ALS-034-08 A 50mm Carinya Classic Sliding Window SG 6EVSG: U-value 4.6, SHGC 0.33
- ALS-041-08 A 50mm Carinya Classic Double Hung Window SG 6EVSG: U-value 4.45, SHGC 0.31
- ALS-038-08 A 92mm Carinya Classic Sliding Door SG 6EVSG: U-value 4.49, SHGC 0.3
- ALS-027-08 A 50mm Carinya Classic Fixed Window SG 6EVSG: U-value 4.05, SHGC 0.34
Window schedule
- MEDIA, window ALS-034-08 A: 1,200 × 2,100 mm facing SW
- PWD, window ALS-034-08 A: 900 × 600 mm facing SW
- PANTRY, window ALS-034-08 A: 1,200 × 1,200 mm facing SW
- BED 5, window ALS-041-08 A: 2,400 × 1,800 mm facing NW
- LAU, window ALM-001-03 A: 1,200 × 450 mm facing NE
- KIT/LIV/DIN, window ALS-041-08 A: 1,800 × 900 mm facing NE
- KIT/LIV/DIN, window ALS-041-08 A: 1,800 × 900 mm facing NE
- KIT/LIV/DIN, window ALS-038-08 A: 2,400 × 3,000 mm facing NE
- KIT/LIV/DIN, window ALS-041-08 A: 2,400 × 900 mm facing SE
- KIT/LIV/DIN, window ALS-038-08 A: 2,400 × 5,200 mm facing SE
- KIT/LIV/DIN, window ALS-041-08 A: 2,400 × 900 mm facing SE
- BED 1, window ALS-034-08 A: 1,500 × 2,400 mm facing NE
- BED 1, window ALS-041-08 A: 2,100 × 600 mm facing SE
- BED 1, window ALS-041-08 A: 2,100 × 600 mm facing SE
- ENS, window ALM-001-03 A: 1,200 × 300 mm facing SW
- ENS, window ALM-001-03 A: 1,200 × 300 mm facing SW
- ENS, window ALS-041-08 A: 1,200 × 600 mm facing SW
- STUDY, window ALS-041-08 A: 2,100 × 600 mm facing SW
- BED 2, window ALM-002-03 A: 2,100 × 600 mm facing SW
- BED 2, window ALM-002-03 A: 2,100 × 600 mm facing SW
- BED 3, window ALS-041-08 A: 1,800 × 2,400 mm facing NW
- BED 4, window ALS-041-08 A: 1,800 × 600 mm facing NW
- BED 4, window ALS-041-08 A: 1,800 × 600 mm facing NW
- BATH, window ALS-034-08 A: 900 × 1,500 mm facing NE
- BATH, window ALS-034-08 A: 900 × 1,200 mm facing NE
- RUMPUS/HALL, window ALS-027-08 A: 2,400 × 3,000 mm facing NE
- RUMPUS/HALL, window ALS-034-08 A: 1,200 × 2,100 mm facing SW
Certificate 6TJCP7D7WB, issued 28 October 2025, from the council's DA documents. Verify this certificate
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