Giraffe is always counting everything. it makes a lot of calculations in the background - ones that are typical to real estate development and design.
To make these calculations work, Giraffe ships with some default properties.
If a geometry or Usage is missing one of these properties, simple add it to the item from the top menu.
Geometric Properties
Property Name | What it's For | How it's used |
Area | The area of the raw feature polygon | Used with efficiencies and levels for building area metrics |
Perimeter | The perimeter length of the raw polygon | Used for facade calculations, for instance |
Length | The length of the raw polyline | Used to calculate the size of line-based geometries, like roads |
Site Area | The area within the site boundary polygon | Calculate FAR, site coverage, etc. |
Building Properties
Property Name | What it's For | How it's used |
Efficiency | Setting the percentage of occupiable space in a building | Used with gross building area to calculate gross floor area |
Sell efficiency | Setting the percentage of sellable/rentable space in a building | Used with gross building area to calculate net rentable area |
Floor to Floor | Set the height of each level | Used with Levels to generate building heights and calculate building areas |
Levels | Set the number of levels | Used with floor to floor to generate building heights and calculate building areas |
Height | Set a raw geometric height | Overrides floor to floor and levels. Negates building area calculations |
Stack Order | Sets the geometry's order of placement within a building stack | Use to move a geometry higher or lower in a building |
Force Stack | Choose default, always, or never to affect stacking behavior | Change if a geometry stacks on other elements on the same drawing layer |
Base height | Raises the bottom of the geometry off the ground plane by the amount set | Use to raise a geometry off the ground without an element below to stack on top of |
Depth | Sets the basement depth | Use to establish an underground basement or water depth |
Loft | Adds a spine raised to the height property value | Create pitched roofs or ramps |
Parking Required | Setting the required parking ratio of the building | Set the number of parking spaces required per 100m²/1000f² of gross floor area |
Visitor Parking Required | Denote a number of required visitor spaces for the entire building. | Input a number of required visitor spaces per building. |
Building ID | Giraffe understands if geometries are in the same building by | Giraffe automatically assigns a
You can also override the |
Dwelling Properties
Property Name | What it's For | How it's used |
Size | The target area of a unit of that type | Unit counts are calculated using net rentable area * mix / size |
Price | The price of the unit (usually rent value per month) | Can be used in analytics to calculate projected income |
Cars | The required parking spaces for the unit type | The required parking is calculated as unit count * cars |
People | The estimated occupants of the unit type | The open space per person and parking spaces per person are calculated using People |
Mix | The target percentage of the units that are of this type | Unit counts are calculated using net rentable area * mix / size |
Parking, Roads, and Landscape Properties
Property Name | What it's For | How it's used |
Carparks per 100m²/1000f² | Sets parking space size | Divides gross area to calculate parking provided |
Road Width | Sets road total width | Multiplies by length to calculate pavement coverage |
Footpath Width | Sets sidewalk or path width. | Multiplies by length to calculate pavement coverage |
Cut & Fill | Set an element to interact with terrain | Toggle on to make the element manipulate the 3D terrain and add/subtract ground works |
Elevation Datum | The height above sea level | Set the datum height of a cut & fill object |
Cut & Fill Offset | The distance horizontally from a cut and fill object before Angle of Repose begins | Set the distance away from a building bad before the ground angles away |
Angle of Repose | The angle of the ground works up to a cut & fill object | Set the angle of the terrain change between building pads with different elevation datums than the editable terrain |
Is Draped | Toggles whether elements drape on 3D terrain | Toggle on to make a landscape or road element drape along terrain |
Land Use Properties
Property Name | What it's For | How it's used |
Floor space ratio | Target FSR/FAR ratio | Use it to calculate actual vs target FSR/FAR |
Site Coverage Ratio | Target site coverage % | Use it to calculate actual vs target Site coverage |
Lot Number | Set the Lot # for the Precinct app or analytics | Use it to manage parcels in the precinct app |
Calculated Properties
Property Name | What it's For | How it's calculated |
Gross Building Area | Frond the gross area of building type geometries | Area * Levels |
Gross floor area | Find the occupiable area | Area * levels * efficiency |
Net Saleable Area | Find the rentable/saleable area | Area * levels * sell efficiency |
Top | Find the top of a building | Height + height (etc) of all elements in a stack |
Height (calculated) | Find the height of a geometry | Levels * Floor to Floor |
Parking Required | Set the required parking spaces | |
Parking Provided / Parking Bay Count | Calculates the parking provided in a parking lot | |
Parking Provided per level | Calculated the parking per level | |
Dwelling Count | Calculates the dwellings | |
Dwelling Count per Level | Calculates the dwellings per level | |
GFA:NRA | The ration of gross floor area to net rentable area | Gross floor area /Net Rentable Area |