Skip to main content

21 Bat Street Box Hill NSW 2765

BASIX certificate and NatHERS rating

Finding the block on the map…

This home has a NatHERS rating of 7 stars out of 10. Its BASIX certificate commits it to 1 kW of solar panels and a 3,000 litre rainwater tank. Its NatHERS certificate lists insulation in the external walls, ceiling and floor. It beat its BASIX energy target, scoring 76 against 70.

Key features

Windows
18 windows and glazed doors: VELUX FS - Fixed Skylight DG 3mm LoE 366 / 8.5mm Argon Gap / 5.36mm Clear La
Wall insulation
R2.5
Roof and ceiling insulation
Ceiling R3, R6, roof Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.8, medium colour
Hot water
Gas instantaneous with a performance of 6 stars
Air conditioning and heating
3-phase airconditioning (living area and bedroom)

Built by Persco Constructions.

BASIX certificate

Energy score
76 (target 70)
Water score
40 (target 40)
Thermal performance
Pass
Materials score
-34
Heating load
42 MJ/m² a year
Cooling load
17 MJ/m² a year
Bedrooms
5
Conditioned floor area
216.3 m²
Unconditioned floor area
11.1 m²
Site area
305 m²
Roof area
210 m²
Garden area
97 m²
Climate zone
NatHERS climate zone 28
Hot water
Gas instantaneous with a performance of 6 stars
Solar panels
1 kW
Rainwater tank
3,000 litres
Fixtures
Showerheads 3 star, toilets 4 star, kitchen taps 5 star, basin taps 5 star
LED lighting
Yes
Cooktop
Gas
Clothes line
Yes
Maximum glazing
aluminium frames 44.7 m², single glazing 27 m², double glazing 17.7 m²

Heating

  • Living area: 3-phase airconditioning; Energy rating: EER 2.5 - 3.0
  • Bedroom: 3-phase airconditioning; Energy rating: EER 2.5 - 3.0

Cooling

  • Living area: 3-phase airconditioning; Energy rating: EER 2.5 - 3.0
  • Bedroom: 3-phase airconditioning; Energy rating: EER 2.5 - 3.0

Construction and insulation

  • Floor: concrete slab on ground, waffle pod slab (no added insulation)
  • Floor: above habitable rooms or mezzanine, particle board; frame: timber - H2 treated softwood (no added insulation)
  • Floor: suspended floor above garage, particle board; frame: timber - H2 treated softwood (fibreglass batts or roll)
  • Garage floor: concrete slab on ground, waffle pod slab (no added insulation)
  • External wall: brick veneer; frame: timber - H2 treated softwood (fibreglass batts or roll+ foil/sarking)
  • External wall: framed (fibre cement sheet or boards); frame: timber - H2 treated softwood (fibreglass batts or roll+ foil/sarking)
  • External garage wall: brick veneer; frame: timber - H2 treated softwood (fibreglass batts or roll+ foil/sarking)
  • Internal wall: plasterboard; frame: timber - H2 treated softwood (fibreglass batts or roll)
  • 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.)
  • Ceiling and roof: flat ceiling / flat roof, framed - metal roof, timber - H2 treated softwood (ceiling: fibreglass batts or roll; roof: foil backed blanket.)

Certificate 1802871S_04, issued 10 August 2025, from the council's DA documents.

NatHERS certificate

Star rating
7 stars
Rated with
BERS Pro v5.2.6 (3.23)
Rated on
10 Aug 2025
Wall insulation
R2.5
Ceiling insulation
R3, R6
Floor insulation
R2.5, R5.0, R3
LED downlights
84
Living room glazing by direction
N 1.5 m², E 7.2 m²
All glazing by direction
N 6 m², E 14.8 m², S 7.4 m², W 16.6 m²

Roof

  • Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.8, medium colour
  • Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, medium colour

Window types

  • VEL-011-01 W VELUX FS - Fixed Skylight DG 3mm LoE 366 / 8.5mm Argon Gap / 5.36mm Clear La: U-value 2.6, SHGC 0.24

Window schedule

  • Media-GF AWS-008-058-001: 2,050 × 610 mm facing W
  • Ktch/Din/Fam-GF AWS-003-055-001: 600 × 1,500 mm facing S
  • Ktch/Din/Fam-GF AWS-013-047-001: 2,400 × 5,000 mm facing W
  • Ktch/Din/Fam-GF AWS-003-055-001: 2,060 × 850 mm facing N
  • Ktch/Din/Fam-GF AWS-003-055-001: 2,060 × 850 mm facing N
  • Pantry-GF AWS-003-055-001: 600 × 1,500 mm facing S
  • Bed 1-GF AWS-008-058-001: 2,400 × 1,570 mm facing E
  • ENS/Bed 1-GF AWS-003-055-001: 1,030 × 850 mm facing S
  • Master Bed-FF AWS-003-055-001: 860 × 2,650 mm facing W
  • ENS/M.Bed-FF AWS-003-055-001: 860 × 1,200 mm facing N
  • Bed 3-FF AWS-003-055-001: 600 × 1,810 mm facing S
  • ENS/Bed 3-FF AWS-008-058-001: 860 × 610 mm facing S
  • ENS/Bed 3-FF AWS-003-055-001: 860 × 1,200 mm facing W
  • Bed 4-FF AWS-003-055-001: 860 × 1,810 mm facing S
  • Bath-FF AWS-003-055-001: 860 × 1,810 mm facing S
  • Bed 5-FF AWS-008-058-001: 2,400 × 1,570 mm facing E
  • Rumpus-FF AWS-003-055-001: 600 × 2,410 mm facing N
  • Rumpus-FF AWS-013-047-001: 2,400 × 3,010 mm facing E

Certificate 0012030326-03, issued 10 August 2025, from the council's DA documents. Verify this certificate

Other certificates for this address

NatHERS certificate, certificate 0012030326, issued 4 July 2025

NatHERS certificate

Star rating
7 stars
Rated with
BERS Pro v5.2.4 (3.23)
Rated on
04 Jul 2025
Wall insulation
R2.5
Ceiling insulation
R2.5, R5
Floor insulation
R2.5, R5.0
LED downlights
84
Living room glazing by direction
N 1.5 m², E 7.2 m²
All glazing by direction
N 6 m², E 13 m², S 8.5 m², W 16.6 m²

Roof

  • Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.8, medium colour
  • Corrugated Iron Timber Frame Bulk, Reflective Side Down, No Air Gap Above R1.3, medium colour

Window types

  • VEL-011-01 W VELUX FS - Fixed Skylight DG 3mm LoE 366 / 8.5mm Argon Gap / 5.36mm Clear La: U-value 2.6, SHGC 0.24

Window schedule

  • Media-GF AWS-008-008-001 W21: 2,050 × 610 mm facing W
  • Ktch/Din/Fam-GF AWS-066-008-001 W04: 600 × 1,810 mm facing S
  • Ktch/Din/Fam-GF AWS-003-008-001 W05: 600 × 1,500 mm facing S
  • Ktch/Din/Fam-GF AWS-013-003-001 W06: 2,400 × 5,000 mm facing W
  • Ktch/Din/Fam-GF AWS-003-008-001 W07: 2,060 × 850 mm facing N
  • Ktch/Din/Fam-GF AWS-003-008-001 W08: 2,060 × 850 mm facing N
  • Pantry-GF AWS-003-008-001 W03: 600 × 1,500 mm facing S
  • Bed 1-GF AWS-007-006-001 W01: 1,800 × 1,500 mm facing E
  • ENS/Bed 1-GF AWS-001-019-001 W02: 1,030 × 850 mm facing S
  • Master Bed-FF AWS-001-019-001 W18: 860 × 2,650 mm facing W
  • ENS/M.Bed-FF AWS-001-019-001 W19: 860 × 1,200 mm facing N
  • Bed 3-FF AWS-001-019-001 W15: 600 × 1,810 mm facing S
  • ENS/Bed 3-FF AWS-007-006-001 W16: 860 × 610 mm facing S
  • ENS/Bed 3-FF AWS-001-019-001 W17: 860 × 1,200 mm facing W
  • Bed 4-FF AWS-001-019-001 W14: 860 × 1,810 mm facing S
  • Bath-FF AWS-001-019-001 W13: 860 × 1,810 mm facing S
  • Bed 5-FF AWS-007-006-001 W12: 1,450 × 1,500 mm facing E
  • Bed 5-FF AWS-066-008-001 W11: 600 × 1,500 mm facing E
  • Rumpus-FF AWS-003-008-001 W20: 600 × 2,410 mm facing N
  • Rumpus-FF AWS-013-003-001 W10: 2,400 × 3,010 mm facing E

Certificate 0012030326, issued 4 July 2025, from the council's DA documents. Verify this certificate

Is this your home? Ask us to remove these details.

What else should you know about this block?

Dudils finds house plans whose living areas face north on your block. Search your own block free at dudils.com.

Related

More homes in The Hills Shire CouncilLook up another addressHow to find a BASIX certificateWhat a NatHERS star rating meansWhat insulation is in my house