Human Settlements Review - Parliamentary Monitoring Group

Human Settlements Review, Volume 1, Number 1, 2010
115
Adjust intervention list
When all of the data points are entered and/
or reviewed, the calculator is ready to produce
results. The main interface needed for this
task is the first section of the Input worksheet,
namely the list of the sustainable building
interventions on the left-hand side (with Y
or N options). Although the calculator was
designed to be used to compare sustainable
options to conventional options, it can also
be used to compare any two combinations of
housing developments with one another. This
can be done by selecting scenarios (Yes or No
scenarios in the drop-down box) to indicate
whether that intervention will be included or
not. There are separate columns providing
up to five different housing typologies within
a development. To indicate whether a type
should be included or not, simply enter the
amount of units that will be built for each type in
the row below the name of that type (e.g. RDP,
GAP, MID). The abbreviations are defined as
follows in the base case: RDP is used for basic
subsidy housing, GAP columns are used to
allow for three different types of houses aimed
at the gap market. MID indicates market-priced
housing, typically the lower end of the market
which is targeted towards those who narrowly
qualify for a housing bond with the banks.
Making Changes to more advanced inputs
1. Calculations – as mentioned
previously in this chapter, the
calculations are all included in excel
spreadsheets that are not locked
or password protected. A few
rows and columns may be hidden
in the main input sheet to make
the calculator less complicated,