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Part 5 Calcs Testing

 

Residential siting assessment

A clearer path through your Part 5 assessment.

Work through each regulation at your own pace. Your inputs, assessment status and reference material stay together in one place.

iYou can save your progress and return with the access code sent to your email.

Your project

Testing mode
In progressOverall assessment
0/15Regulations actioned
0Appears compliant
0Not compliant
0Needs review

Building and property parameters

Enter the site-wide dimensions once so matching assessment fields can be prefilled.

Assessment details

Select a regulation to review its inputs and result.

15 shown
73

Maximum street setback

! Maximum allowable street setback based on allotment depth.
To be assessed

Enter the allotment depth and proposed setback in metres. The plugin calculates the maximum allowable setback as one third of the allotment depth.

To be assessed

Enter the required details to assess this regulation.

74

Street setbacks

! Checks the minimum street setback using Regulation 74(1), Table 74 and the Regulation 74(3) porch encroachment limits.
To be assessed

Start with Regulation 74(1). If it does not apply, select the Table 74 context, confirm whether the street is a declared road where relevant, then enter the proposed house front setback. If there is a front porch, enter its height and proposed porch front setback.

To be assessed

Enter the required details to assess this regulation.

75

Building height

To be assessed

Enter the schedule height if applicable. Otherwise select the natural ground slope category, confirm whether the relevant cross section is wider than 8m, and enter the proposed height. Use the within-1m height field only where regulation 75(3) applies.

To be assessed

Enter the required details to assess this regulation.

76

Site coverage

! Checks how much of the allotment is covered by buildings against the site coverage limit.
To be assessed

Enter the allotment area, building footprint and any unroofed areas that may be disregarded under regulation 76(3). Eaves, fascias and gutters are noted for reference only and are not deducted by this calculator.

To be assessed

Enter the required details to assess this regulation.

76A

Minimum garden area

! Checks whether enough garden area is provided for the allotment size.
To be assessed

Enter the allotment area to calculate the required garden area percentage and minimum area. Add the qualifying garden area provided to complete the compliance check. Use the 27 March 2017 field only where Regulation 76A(5) is relevant.

To be assessed

Enter the required details to assess this regulation.

77

Permeability

! Checks whether enough permeable surface is provided to help stormwater soak into the site.
To be assessed

Enter the scheduled permeability where applicable. Otherwise enter the allotment area and proposed permeable surface area.

To be assessed

Enter the required details to assess this regulation.

78

Car parking

! Checks whether the required car spaces and basic parking dimensions are provided.
To be assessed

Select whether the assessment relates to a new Class 1 building or an alteration. For a new building, choose garage/carport or no garage/carport, then enter only the dimensions for that parking arrangement. Note only: any building projection into a car parking space must be at least 2.1m above that space.

To be assessed

Enter the required details to assess this regulation.

79

Side and rear setbacks

! Checks side and rear boundary setbacks using orientation-based wall heights and Table 79.
To be assessed

Use the property parameters for front/side street alignments and storeys, then add each side or rear wall to assess its height and setback against Table 79.

Encroachments permitted by Regulation 79(3) and 79(4), including eaves, fascias, gutters and listed projections, should be noted separately where relevant.

For a wall that continues from ground floor to first floor, add it under the ground floor, enter the total wall height being assessed, and tick continuous to first floor.

North

East

South

West

North

East

South

West

To be assessed

Enter the required details to assess this regulation.

80

Walls and carports on boundaries

! Checks walls and carports on boundaries for length, average height and maximum height limits.
To be assessed

Enter the relevant boundary length, proposed wall or carport length, maximum wall height and average wall height.

To be assessed

Enter the required details to assess this regulation.

81

Daylight to existing habitable room windows

! Checks daylight impacts to existing habitable room windows on adjoining allotments.
To be assessed

Confirm whether Regulation 81 applies to an adjoining habitable room window. If the current 1m clear-to-sky distance or 3m2 light court area is already below the threshold, report and consent is required regardless of the proposed setback. Measure the 1m light-court distance from the gutter where relevant.

To be assessed

Enter the required details to assess this regulation.

82

Solar access to existing north-facing habitable room windows

! Checks solar access impacts to existing north-facing habitable room windows.
To be assessed

Tick whether there is an adjoining north-facing habitable room window within 3m of the boundary. If no, Regulation 82 automatically complies. If yes, complete the existing orientation, eaves/parapet, height and setback fields to assess Table 82.

To be assessed

Enter the required details to assess this regulation.

83

Overshadowing of recreational private open space

! Checks overshadowing impacts to adjoining recreational private open space.
To be assessed

Use this as a preliminary Regulation 83 assessment. Confirm whether an existing adjoining dwelling is affected, whether the proposal creates additional shadowing, and whether matching 22 September 9am-3pm shadow information supports a reliable cumulative 5-hour sunlight assessment.

Add one assessment for each adjoining dwelling that may be affected.

To be assessed

Enter the required details to assess this regulation.

84

Overlooking

! Screens Regulation 84 overlooking using source, target, sightline, obstruction and treatment checks.
To be assessed

Use this as a screening tool. Clear no-existing-dwelling, no protected target, outside-9m, no-direct-sight, Regulation 84(8), permanent obstruction, window-offset, clear-view-height, obscure-glazing and complete fixed-screen pathways can be screened here. Ambiguous geometry, target/source classification, openable glazing, side views and incomplete documentation require further review.

To be assessed

Enter the required details to assess this regulation.

85

Daylight to habitable room windows

! Checks daylight access for proposed habitable room windows using the outdoor-space, open-structure and carport pathways.
To be assessed

Assess each proposed habitable room window separately. Use the outdoor-space/light-court pathway, verandah/porch/deck/balcony pathway, or carport pathway. Return further review where geometry, clear-to-sky dimensions, subject-allotment extent, perimeter openness or carport open-side classification is not clearly established.

To be assessed

Enter the required details to assess this regulation.

86

Private open space

! Screens Regulation 86 private open space using Schedule 6, small-second-dwelling and standard side/rear POS pathways.
To be assessed

Use this as a pathway-based screening tool. Confirm small-second-dwelling applicability, Schedule 6 zoning, schedule requirements, qualifying private open-space area, side/rear location, inclusion within total POS, minimum dimension and convenient access. Use further review for uncertain facts and report and consent where complete information confirms a failure.

To be assessed

Enter the required details to assess this regulation.

Your assessment

Your live status and next actions.

0%
To be assessed

Not assessed

This assessment is based on the information entered and is provided as general guidance only. Final compliance should be confirmed by SP Building Surveyors.

Planning scheme zone schedules and their related subclause pathways are currently excluded from this assessment.

Need a regulation reference?

Choose a regulation to review its assessment guidance, legislative text and supporting reference material.

Building Regulations 2018 (Vic) — Regulation 73

73 – Maximum street setback

  1. A Class 1 building when first constructed must not be set back from the front street alignment more than one-third of the depth of the allotment unless the allotment is equal to or greater than 0·40469 ha.
  2. The report and consent of the relevant council must be obtained to an application for a building permit in relation to a design that does not comply with this regulation.
  3. For the purposes of subregulation (1), if a building is on a battleaxe allotment—
    a) a reference to the allotment is taken not to include a driveway that forms part of the battleaxe allotment; and
    b) a reference to the front street alignment is taken to be a reference to the common boundary between the battleaxe allotment and the front allotment (excluding the common boundary between any driveway that forms part of the battleaxe allotment and the front allotment).
  4. In this regulation—

battleaxe allotment means—
an allotment situated behind another allotment that has a street frontage; and
the allotment has access to the street through a driveway, whether or not the driveway forms part of the allotment;

driveway includes any land related and contiguous to the driveway;

front allotment means an allotment that has a street frontage and that is situated in front of a battleaxe allotment.
This regulation does not apply in respect of the construction of a building that is a small second dwelling.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 74

Regulation 74 – Minimum street setbacks

Regulation 74(1) requires a building to be set back from a street alignment not less than the relevant setback specified for that street alignment where that subregulation applies. If Regulation 74(1) does not apply, Regulation 74(2) requires the building to be set back not less than the relevant distance in Table 74.

Table 74 assesses front and side street setbacks based on adjoining development context, including existing dwellings on adjoining allotments, no existing dwellings, and corner allotments. Where Table 74 refers to a declared road, check whether the road is listed in the Victorian Register of Public Roads. For this calculator, treat a declared road as a main public road recorded in the register; treat an ordinary local street off a main road as non-declared unless confirmed otherwise.

Regulation 74(3) permits a porch, verandah or pergola not more than 3.6m high to encroach into the required front setback by not more than 2.5m. If it is over 3.6m high, assess it against the required front setback without the 2.5m encroachment allowance.

Report and consent of the relevant council is required for a design that does not comply with this regulation.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 75

(1)         If—
(a)  an allotment is in a zone of a planning scheme specified in Schedule 6; and
(b)  that zone, or a schedule to that zone, specifies a maximum height for buildings—
the height of a building on that allotment must not exceed the relevant height specified in that zone or schedule (as the case may be).
(2)  If subregulation (1) does not apply, the height of a building must not exceed—
(a)  10 m if the slope of the natural ground level at any cross section of the site of the building that is wider than 8 m is 2·5° or more; and
(b)  9 m in any other case.
(3)  If a wall is constructed in accordance with regulation 80, and despite regulation 79, any part of a building on the allotment that is within 1 m of a side or rear boundary and that is adjacent to the wall must be constructed so as not to exceed the height formed by a line that connects—
(a)  any point at the top of the wall; and
(b)  any point at a height of 3·6 m at a setback of 1 m from the boundary.
(4)  The report and consent of the relevant council must be obtained to an application for a building permit in relation to a design that does not comply with this regulation.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 76

Regulation 76 – Site coverage

(1) If an allotment is in a zone of a planning scheme specified in Schedule 6, and a schedule to that zone specifies a maximum site coverage for buildings, buildings must not occupy more of the allotment than the site coverage specified in that schedule.

(2) If subregulation (1) does not apply, buildings must not occupy more than 60% of an allotment.

(3) The following items may be disregarded when calculating site coverage under subregulation (1) or (2):

  • not more than 600 mm of the width of eaves, fascia and gutters;
  • unroofed swimming pools or spas, unroofed terraces, unroofed patios, unroofed decks and pergolas.

Note: Eaves, fascias and gutters are listed here for reference only. This calculator does not deduct them from the site coverage area.

(4) The report and consent of the relevant council must be obtained to an application for a building permit in relation to a design that does not comply with this regulation.

(5) This regulation applies whether or not there is one building constructed on the allotment, or there are 2 buildings constructed on the allotment, one of which is a small second dwelling.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 76A

Regulation 76A – Minimum garden area

The allotment must have a minimum garden area of 25%, 30% or 35% of the allotment area depending on site size, unless the lesser 27 March 2017 planning scheme minimum applies. Garden area means any area on an allotment with a minimum dimension of 1m other than an area covered by a building, a driveway or an area set aside for car parking.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 77

Regulation 77 – Permeability

(1) If an allotment is in a zone of a planning scheme specified in Schedule 6, and a schedule to that zone specifies that an allotment must have a minimum area of permeable surfaces, the amount of the allotment that must have a permeable surface must not be less than the minimum area of permeability specified in that schedule.

(2) If subregulation (1) does not apply, and if a building is to be constructed on an allotment, at least 20% of the area of the allotment must have a permeable surface.

(3) The report and consent of the relevant council must be obtained to an application for a building permit in relation to a design that does not comply with this regulation.

(4) This regulation applies whether or not there is one building constructed on the allotment, or there are 2 buildings constructed on the allotment, one of which is a small second dwelling.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 78

Regulation 78 – Car parking

(1) If a new Class 1 building is to be constructed on an allotment, provision must be made for 2 car parking spaces on the allotment that are accessible from the street.

(2) Of the 2 required car parking spaces:

  • the first space must be at least 6m long and 3.5m wide; and
  • the second space must be at least 4.9m long and 2.6m wide.

(3) A building may project into a car parking space if it is at least 2.1m above that space.

(4) Despite subregulation (2), if the 2 required car parking spaces adjoin each other in a garage or carport or in a space constrained by walls, the total space may be 5.5m in width.

(5) An alteration to a building on an allotment must not reduce the number of car parking spaces on the allotment unless there are more than 2 car parking spaces on the allotment, in which case the number of car parking spaces may be reduced to 2.

(6) The report and consent of the relevant council must be obtained to an application for a building permit in relation to a design that does not comply with this regulation.

(7) This regulation does not apply in respect of the construction of a building that is a small second dwelling.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 79

Regulation 79 – Side and rear setbacks

Assess side and rear walls against Table 79 using the building height at that point and the proposed setback from that boundary. Boundaries nominated as the front street alignment, or as the side street alignment for a corner block, are not assessed under this side/rear pathway.

Encroachments listed in Regulation 79(3) and 79(4) may affect how the setback is measured and should be reviewed separately where relevant.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 80

Regulation 80 – Walls and carports on boundaries

(1) This regulation applies to the construction of:

  • a wall of a building constructed on or within 200mm of a side or rear boundary of an allotment; or
  • a carport constructed on or within 1m of a side or rear boundary of an allotment and which is open on the side facing the boundary or boundaries.

(2) If an allotment is in a zone of a planning scheme specified in Schedule 6, and a schedule to that zone specifies the maximum length of the wall, or of the carport, or of the wall and carport, or the maximum of any of those lengths combined with the length of any existing wall or carport, that length must not exceed the maximum length specified in that schedule.

(3) If subregulation (2) does not apply, the length of the wall, or of the carport, or of the wall and carport, or any of those lengths combined with the length of any existing wall or carport, must not exceed the greater of the following:

  • the length of any existing wall or carport constructed on an adjoining allotment, which is within 200mm of the boundary of that allotment, if the proposed construction abuts the existing wall or carport;
  • 10m plus 25% of the remaining length of the boundary of the adjoining allotment, in any other case.

(4) The wall or carport must not exceed an average height of 3.2m where the average is calculated after excluding any length that is less than 2m in height, and a maximum height of 3.6m.

(5) Despite subregulation (4), if the wall or carport abuts an existing wall or carport it may be constructed to the same height as that wall or carport.

(6) The report and consent of the relevant council must be obtained to an application for a building permit in relation to a design that does not comply with this regulation.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 81

Regulation 81 – Daylight to existing habitable room windows

(1) A building must be set back from a habitable room window in an existing dwelling on an adjoining allotment to provide for a light court to the window that has a minimum area of 3m2 and a minimum dimension of 1m clear to the sky.

(2) The area of the light court required under subregulation (1) may include land on the adjoining allotment.

(3) A wall or carport with an average height of more than 3m opposite a habitable room window in an existing dwelling on an adjoining allotment must be set back from that window at least half the height of the wall or carport if the wall or carport is within a 55 degree angle in the horizontal plane about a vertical axis through the centre of the window.

(4) For the purposes of subregulation (3), the angle may be swung to not less than 35 degrees from the plane of the wall containing the window.

(5) If the window referred to in subregulation (3) is above ground floor level, then for the purposes of that subregulation, the wall or carport height is to be measured from the floor level of the room containing the window.

(6) The report and consent of the relevant council must be obtained to an application for a building permit in relation to a design that does not comply with this regulation.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 82

Regulation 82 – Solar access to existing north-facing habitable room windows

(1) This regulation applies if a building is to be constructed on an allotment and a north-facing habitable room window or part of a window of an existing dwelling on an adjoining allotment is within 3m of a boundary of the allotment on which the building is to be constructed, is oriented towards the boundary, and will be situated below the eaves or the top of a parapet of the building being constructed.

Note: “north-facing habitable room window” means a window of a habitable room that has an axis perpendicular to its surface oriented true north 20 degrees west to true north 30 degrees east.

(2) The proposed building must be set back from the boundary not less than the distance specified in Table 82 for a distance of 3m from each side of the window or that part of the window that is within 3m of the boundary.

Table 82 – Setbacks from north-facing habitable room windows

  • Building height 3.6m or less: minimum setback 1m.
  • More than 3.6m but not more than 6.9m: 1m plus an additional distance at the rate of 600mm for every metre of height over 3.6m.
  • More than 6.9m: 3m plus an additional distance at the rate of 1m for every metre of height over 6.9m.

(3) Flues and pipes, domestic fuel tanks and water tanks, heating and cooling equipment and other services may encroach into the setback distance required by subregulation (2) by not more than 500mm and to a height not exceeding 2.5m.

(4) A rainwater head may encroach into the setback distance required by subregulation (2) by not more than 500mm.

(5) The report and consent of the relevant council must be obtained to an application for a building permit in relation to a design that does not comply with this regulation.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 83

Regulation 83 – Overshadowing of recreational private open space

(1) A building must not reduce the sunlight to a recreational private open space of an existing dwelling on an adjoining allotment to the extent that less than the required minimum area of the recreational private open space has less than 5 hours of sunlight between 9 a.m. and 3 p.m. on 22 September.

(2) If a building is to be constructed on an allotment and the existing amount of sunlight to a recreational private open space on an adjoining allotment is less than the amount required under subregulation (1), the amount of sunlight to that area must not be further reduced by the construction of the building.

(3) The report and consent of the relevant council must be obtained to an application for a building permit in relation to a design that does not comply with this regulation.

(4) In this regulation the required minimum area of a recreational private open space is the lesser of 75% of the recreational private open space and 40m2, with a minimum dimension of 3m.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 84

Regulation 84 – Overlooking

A habitable room window or raised open space of a building on an allotment must not provide a direct line of sight into a habitable room window or on to a secluded private open space of an existing dwelling on an adjoining allotment.

A habitable room window complies if it is offset by at least 1.5m from the adjoining window, has its lowest clear-view portion at least 1.7m above floor level, has compliant obscure glazing below 1.7m, or the direct line of sight is obscured by a permanent and fixed screen with no more than 25% of its area open.

A raised open space complies if the complete relevant direct line of sight is obscured by a permanent and fixed screen with no more than 25% of its area open.

This regulation does not apply to a new habitable room window or raised open space that faces a property boundary if there is a visual barrier at least 1.8m high at the boundary and the floor level of the room or raised open space is less than 800mm above the ground level at the boundary.

The report and consent of the relevant council must be obtained to an application for a building permit in relation to a design that does not comply with this regulation.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 85

Regulation 85 – Daylight to habitable room windows

(1) A habitable room window of a building on an allotment must face an outdoor space or light court with a minimum area of 3m2 and a minimum dimension of 1m clear to the sky, a verandah/porch/deck/balcony on the allotment that is open for at least one third of its perimeter, or a carport on the allotment that has 2 or more sides open and is open for at least one third of its perimeter.

(2) A side of a carport or verandah may be taken to be open if the roof covering adjacent to that side is at least 500mm from another building on the allotment or the adjoining allotment boundary.

(3) The report and consent of the relevant council must be obtained to an application for a building permit in relation to a design that does not comply with this regulation.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

Building Regulations 2018 (Vic) — Regulation 86

Regulation 86 – Private open space

(1) If an allotment is in a zone of a planning scheme specified in Schedule 6 and a schedule to that zone specifies a minimum area and dimension for private open space, a Class 1 building on that allotment must have private open space of at least the area and dimension specified in that schedule.

(2) If subregulation (1) does not apply, a Class 1 building on an allotment must have private open space of not less than 80m2 or 20% of the area of the allotment, whichever is the lesser, including an area at the side or rear of the building that is at least 25m2 with a minimum dimension of 3m and has convenient access from a habitable room other than a bedroom. If there is a small second dwelling on the allotment, the existing dwelling must have private open space at the side or rear of at least 25m2 with a minimum dimension of 3m and convenient access from a habitable room other than a bedroom.

(3) The report and consent of the relevant council must be obtained to an application for a building permit in relation to a design that does not comply with this regulation.

(4) This regulation does not apply in respect of the construction of a building that is a small second dwelling.

Practice note figures

Relevant figure-only diagrams will be added here. Full practice-note pages are intentionally excluded.

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