CPCCBC4012B Diploma of Building: Plans and Specifications Portfolio

This portfolio assignment, completed in partnership with the CPC50210 Diploma of Building and Construction (Building), focuses on the unit CPCCBC4012B: Read and interpret plans and specifications. The assignment involves a scenario where students, acting as construction professionals, assist clients David and Tara King in designing a single-storey residence with a double garage and workshop. Tasks include completing tables on drawing types and their purposes, explaining aspects of drawings like elevations and sections, creating a site plan with building footprints and a garage/workshop, and developing an orthographic drawing of the garage. Additionally, the assignment requires students to differentiate between provisional sums and prime costs and identify BCA requirements for site features. The student's work includes various drawings, explanations, and tables, demonstrating their understanding of construction plans, specifications, and relevant building codes.

in partnership with
CPC50210 Diploma of Building and
Construction (Building)
CPCCBC4012B Read and interpret
plans and specifications
Portfolio
Student name: XXXXXX
Student number: XXXXXX
Assessment: 32634/01

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Assessment submission
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student number or name_32634-01_Task 1.docx
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Introduction
This assessment has been designed to allow you to provide full evidence of your
competence in the unit CPCCBC4012B Read and interpret plans and
specifications.
Note: you will need to complete additional assessments as you progress through
your course to demonstrate competence for all aspects of the unit.
In completing your final assessments, you will show evidence of your ability to:
 read and interpret plans and specifications and other details pertinent to the
construction process
 identify the characteristics and features of sites and structures pertinent to a
construction project
 address customer variations to plans and specifications
 apply elements to estimation, planning and supervisory tasks
 communicate specification changes to the client and construction team
Instructions
Complete each of the tasks below based on this scenario.
Scenario
Sullivon Constructions have been contacted by new clients, David
and Tara King, who are considering building a single storey
residence and double garage with workshop on the property they
have recently purchased. The couple have had a site plan
prepared for construction purposes (see Appendix A on page 9).
They have organised an on-site meeting with you to discuss their
future plans to build their first home, including a variation to add
a double garage with workshop at the rear of the site.
David and Tara have supplied you with their sketch of the
proposed residence over the site plan (see Appendix B on page 10).
Task 1
Task 1.1 - Complete the table below by listing five types of drawings you will
need in order to prepare a quotation and explain the construction process.
Drawing type What purpose does What is the advantage of
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this drawing serve? this type of drawing?
1. Architectural
drawings
They present all the
architectural designs of
the site and the building
structure.
It is the basis of design for
the entire construction.
2. Structural
drawings
They present all the
structural requirements of
the building structure
such as beams and
columns loading.
It presents the precise
loadings and structural
elements required for
building stability.
3. Mechanical
drawings
They illustrate all the
mechanical needs of the
building such as
ventilation.
It indicates the precise
mechanical needs of the
building.
4. Electrical
drawings
They illustrate electrical
needs and specifications
of the building.
It precisely shows the
voltage required for various
electrical needs of the
building and exact wiring.
5. Landscaping
drawings
They illustrate the
planting plan and types to
be followed when
landscaping the
compound.
It presents a footprint to be
followed during planting in
the compound to reflect the
clients’ wishes.
Task 1.2 - Write a brief explanation (approximately 50 words) of each of
the aspects of drawing listed below.
Aspect of
drawing
Explanation
Elevations The exterior façade of a building
Plans An orthographic drawing showing relationship between
rooms or other elements at one level, viewed from
above.
Sections A cut through a building along the primary axis
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Isometric
projection
A three dimensional representation of a building showing
its technical elements
Perspective
drawing
An approximated graphic, artistic or rendered
representation of a building
Task 2
Scenario
The clients, David and Tara King, are satisfied that the double garage
and workshop will allow on-site storage of most construction
materials while they build their new home, but they need you to
design this structure and show the location in the zoned area. They
require a rainwater tank attached to the garage with workshop, which
will cater for all new vegetation they have planted at the rear of the
property, while the residence is being built.
The Kings would now like you to prepare a sketch plan of the
proposed single-storey residence. In addition, the Kings also need you
to determine the location of the 6m X 10m garage with workshop
located within the zoned area, at the rear of the site. You must
specify the garage location by drawing the footprint in the zoned
area, as shown in Appendix A.
Follow these instructions to prepare drawings that reflect the client’s
requirements and variation to the original site plan they received when
purchasing their property.
Task 2.1 - Drawing 1: Repurposed Site Plan
You are to produce a site plan drawing which includes the
building/residential footprint and garage with workshop, as
described by the clients.
Your 2D freehand Site Plan with building footprints drawing must include:
 Scaling at 1:200 on A3 paper (to show in more detail)
 All drawing patterns/hatching as indicated over the single storey
residence
 Design and locate the position of the 6m X 10m Double garage
and workshop in the zoned area
 AHD levels with area labels
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 Power supplies, cabling, services, stormwater pipe work,
setbacks, boundaries, driveways and contour lines
 International drawing conventions
 A title block (landscape format)
 North point
Drawing 2.2: Orthographic drawing
You must create an orthographic drawing (scale 1:50 on A3 paper) of
the double garage and workshop:
 2 Elevations of your choice
 1 Section through the garage/workshop
 1 Roof plan
Your drawing must:
 be drawn freehand, at a scale of 1:50
 show the natural lighting to the garage (e.g. skylight, window/s)
 include the 2,000-litre rainwater tank showing tie-in plumbing
with piping
 use international conventions, including object labels
 include a title block
Please note: at a scale 1:50 you will represent windows and door framing as well
as detailed elements of external walls, downpipes, gutters and roofing material.
Task 3
Task 3.1 - Prepare a written example to explain your understanding
of the difference between provisional sum (PS) and prime cost (PC).
Maximum 150 words.
A prime cost item refers to the specific amount of money included in a
contract sum to purchase a specified item such as taps or bathroom
fittings while a provisional sum is the amount of money included in the
contract cum to cover materials and work whose extents cannot be
specifically calculated in the time of contract signing.
In the provisional sum, the contractor is privileged to add attendance
costs and mark up costs to the provisional sum. If the actual costs
happen to be higher than the quoted provisional sums then the contract
sum is increased while if the actual costs are lower than the quoted
provisional sum then the contract sum is reduced.
Prime costs may be classified as defined or undefined sums:
 Undefined sums are those costs that are not well defined and thus
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the contractor cannot add them in his allowance during the
preliminaries and planning stage.
 Defined sums are costs that are precisely defined and thus
allowing the contractor to quote them in his allowance during the
preliminaries and planning stage.
Task 3.2 - Complete the Site features table below by listing three key
features of the site and researching and indicating specific Building
Code of Australia (BCA) requirements and standards.
Site features table
Key
feature
Location or position
on the site plan
BCA and
Standard/legislation
requirement
Approvals
required
e.g.
Drivewa
y
North west of the
property, crossing
verge with footpath,
providing site access
AS 3727 Subject to
approval by
Council
2000L
water
tank
Adjacent to the
workshop, west of the
proposed residence
AS 3500
AS 4130
Subject to
approval by local
council
Garage
and
worksho
p
West to the residence Planning and
Development regulation
2008, Schedule 1, part
1.3
Approval by
building
certifier
1.8m
Paling
fence
At the boundary of the
residential plot
Dividing Fences Act
1961
No approval
required
Please note: All files are to be uploaded to OpenSpace as a PDF.
Items to submit as evidence for this assessment:
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Table 1 
Table 2 
Site Plan - residence and garage with workshop 
Orthographic drawing of garage and workshop 
Difference between PC and PS 
Completed site features table 
Appendix A
David and Tara’s sketch of the proposed driveway and zoned area
over the site plan
CLICK here for High-Res version
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Appendix B
David and Tara’s sketch of the proposed residence over the site
plan
Click here for High-Res version
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