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Perimeter terraced housing block properties

If you select a Mixed-Use Perimeter Block (or more than one block of this type only) in the main Display Window, then the following sub-panels will appear:

Mixed-Use Perimeter Blocks

Number of storeys / Number of Basements

You can choose a value from the drop-down menu, or you can type in a number directly. The 3D visualization, the Total GFA and Floor Area ratio will be updated.

Block Depth

If you change this, the 3D visualization, the Total GFA and the Floor Area Ratio will be updated.

Total GFA

If you enter a value for this, the Floor Area Ratio and the Block Depth will be updated. If you enter a GFA which cannot be achieved even if the block depth is increased to cover the whole block, then storeys will be added until the target GFA is achieved.

Floor Area Ratio

If you enter a value for this, the Block Depth and Total GFA will be adjusted to achieve the ratio you enter. If you enter a ratio which cannot be achieved even if the block depth is increased to cover the whole block, then storeys will be added until the target ratio is achieved.

Block Area

This displays the footprint of the block.

Levels - Fixed Base

If you check this box, then the block will be set at a constant level. You can set this fixed level by entering a value next to 'Fixed Base' (This will be a height above the ground plane).

Levels - Max Height

If you check 'Max Height' and enter a value, you will be warned if the building exceeds this height.

Interior Colour

This will be the colour of the ground in the centre of the perimeter block. If you select 'Default', then it will use the default as defined in the Land Uses dialog. Alternatively, you can choose 'Custom' and select a colour from the drop-down panel.

Setback Colour

This will be the colour of any setbacks from routes around the block. If you select 'Default', then it will be the same as the rest of the block. Setbacks are added to Routes in the Route Properties panel.

Padlocks

This panel contains padlocks, which allow you to 'lock' a value if the block is made larger or smaller in the Main Display Window.

If no padlocks are locked, and if you make a block larger or smaller, then by default the Block Depth will remain constant (and the Total GFA and Floor Area Ratio will be adjusted).

You can click on a padlock to lock or unlock it.

Using Padlocks

In most cases you may find it best to leave the padlocks unlocked. If you lock the number of units, then if you re-size the block the density can easily be changed to unexpectedly high or low levels. Similarly, if you lock the Total GFA, then the average unit floor area can easily become unexpectedly low or high.

Padlocks are also available in the Floors and Subdivisions panel. See below for more details.

Floors and Subdivisions Panel

The settings for individual Floors can be changed in this panel. First, select the floor you want to edit by using the 'Select' drop-down menu at the top. The options available in this menu will change depending on how many floors and basements you enter in the 'Perimeter Mixed Use' panel above.

Name

You can enter a name for each floor.

Use

Select a land use from the drop-down menu.

Floor-to-floor height

The 3D visualization will adjust depending on the value you enter, and will be indicated by horizontal lines on the side of the block.

Colour

You can choose either 'Default' or 'Custom'. If you choose default, then the floor will be coloured according to the land use colour, as specified in the land use preferences

Sub-panels

Within the Floors and Subdivisions Panel are sub-panels:

Other options, such as 'Retail Use Options' will appear depending on which Land Use is chosen in the Use menu. For a full description see: Summary of Land Uses and Options

Sub-Panel: General Floorspace Options

This is a sub-panel within the Floors/Subdivisions Panel. You can use it to change floorspace and unit settings for the selected floor.

Total GFA

Displays the total Gross Floor Area of the floor. In CityCAD, this is a calculation of the gross floorspace contained within the floor - with no deductions made for wall thicknesses, stair/lift cores or similar uses.

Net Floor Area

You can enter in the Net Floor Area either as a percentage of the GFA, or as an absolute value. If you type in a percentage, then the absolute value will be calculated automatically based on the GFA of the floor, and vice versa.

Units

All floors can contain units. You can enter the total number of units or the average unit area. If you type in an average unit area, then the total number of units will be calculated automatically based on the GFA of the floor, and vice versa.

Padlocks

The General Floorspace Options panel contains padlocks, which allow you to 'lock' a value if the block is made larger or smaller in the Main Display Window.

By default, if you make a block larger or smaller, then the % of Net Floor Area, and the Number of Units will remain constant.

This means if you enlarge a block, the % of NFA will remain constant, and the absolute area of NFA will increase.

The total number of units will remain constant, but the average unit area will increase.

Sub-Panel: Land and Resource Use Options

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Activity

You can set hours of activity for the block - either Default (as set in the Land Uses dialog), 24-hour (all day), or specific times. These values will be used in the Land Use Summary tab.

Occupancy/Population

This allows you to set the number of people in the floor. If you set 'Use Estimate' then it will use the default setting for this block depending on the settings in the Land Uses, or if you choose 'Set at:' and enter a number it will be fixed at this number.

Environmental Rating

You can choose a Conservation value from the drop-down panel. This is an embedded custom parameter, and multiple choice options can be edited in the Preferences window.

Ownership

You can choose a Ownership description from the drop-down panel. This is an embedded custom parameter, and multiple choice options can be edited in the Preferences window.

Conservation Value

You can choose a Conservation value from the drop-down panel. This is a reference which can be used to create diagrams using Block Shading or in the 2D drawing window

Sub-Panel: Resource Use Options

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You can enter energy and resource use options for the floor in this panel.

If you choose 'Use Default', then the default settings for this type of land use will be used, as defined in the Land Uses.

If you choose 'Custom', then you can enter custom values that will apply to this block only.

Embodied CO2

This is a measure of the CO2 used in the construction of the floor.

Rate and Time Menus

If you click on the first drop-down menu you can choose whether the values you enter are:

The second drop down menu allows you to enter the time period for which the values are entered:

Rates

You can then enter values for:

Hint

If you are used to dealing with other units of measurement (eg. gallons of water, or square feet of area) then you can go to the Units section of the Preferences dialog and set your preferred units.

Sub-Panel: Custom Parameters

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This panel is used for entering custom parameters which are specific to a floor, as opposed to the block as a whole.

Block Appearance

You can enter settings for illustrative visualizations on the block. See Block Appearance for more details.

Custom Parameters

You can enter custom parameters for the currently selected block. Note that this is different from custom parameters applied to individual floors of a block. To edit which custom parameters are available, go to the Preferences window.

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