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:: Cost Segregation Audit Techniques Guide - Chapter 6.6 -
Chapter 6.5 - Construction Process
APPENDIX - CHAPTER 6.6 -
CONSTRUCTION PROCESS
In order to
better understand how a cost
segregation study is conducted,
it is helpful to understand the
construction process (i.e., how
a building is constructed). The
following discussion provides a
general overview of this
process, from the conceptual
stage through the bidding,
construction, payment, and
completion stage of a project.
Although there may be certain
facts and circumstances in
specific geographic locales that
vary from what is presented
here, the basic construction
concepts are similar in all
locales. For purposes of this
discussion, it is assumed that a
fee contractor, rather than an
in-house labor force, performs
the construction. For additional
information and a glossary of
construction terms, refer to the
MSSP Guide for Construction
Industry, which can be
downloaded using the following
link:
http://www.irs.gov/pub/irs-mssp/build.pdf
STAGES
IN THE CONSTRUCTION PROCESS
The
Construction Process is composed
of six distinct stages, which
are:
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Each of these
stages is discussed below in
more detail.
1.
Concept
All
construction projects begin with
planning and design, also
referred to as "architectural
programming." Numerous
overlapping steps occur during
this conceptual or design phase,
prior to actual construction of
the project.
An
architect is the
primary designer of a building
or project and controls the
overall design, specifications,
finished materials (e.g., brick,
paint, carpet, wall covering,
etc.), and other architectural
features of the building. In
addition, the architect
supervises the engineers
responsible for the structural,
mechanical, electrical, lighting
and plumbing design of the
building. Engineers must always
conform to the design
requirements of the architect.
Each member of the design team
must also be licensed with the
proper state licensing
authorities where the facility
is located.
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Planning &
Architectural
Programming
During the initial
stages of the design
process, the
architect(s) and
engineer(s) have a
number of client
meetings in order to
determine the purpose
and objective of the
proposed construction.
The primary activities,
for which the project is
being constructed, as
well as the
relationships between
spaces, are reviewed.
Consideration is also
given to how well the
completed project
relates to adjacent
buildings (if any) and
its surroundings. The
preliminary programming
produces a list of
solutions, alternatives,
feasibility studies and
costs estimates. After a
review of the
programming statement,
schematic plans are
prepared.
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Schematic Plans
Schematic plans are the
first plans of a
facility and show the
interrelationship
between spaces and
activities. All of the
parties (architects,
engineers, and the
client) review the
schematic plans and make
recommendations, as
necessary. Any changes
are then incorporated
into the final schematic
plans. Revised schematic
plans are also known as
"preliminary plans," and
provide a graphic view
of the project, the
refined details of how
the project will look,
and the relationship of
all spaces.
Once the
preliminary planning phase is
complete, the project then
enters a stage involving the
preparation of contract bid
documents and working drawings.
2.
Contracts and Bid Documents
In order to
solicit construction bids, the
builder must provide potential
bidders with working drawings
and plans for the proposed
structure, as well as project
specifications, the terms of
which are spelled out in
contracts.
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Contract/Working
Drawings/Plans
All projects,
whether they involve new
construction or
expansion of an existing
structure, require the
preparation of contract
documents. The contract
working drawings and
plans provide a
pictorial representation
of the construction
work, and specify or lay
out the designer’s
intentions for the
facility. The drawings
illustrate, among other
things, the appearance,
layout, equipment, and
amenities of the
project. These drawings
show the architect’s
plan/design for the
building’s overall
appearance, such as
finish materials, floor
plans, sizes, and use of
each building area.
Engineers design the
building’s structural,
mechanical, electrical,
plumbing and
communication systems.
The
architect also begins to
gather project data to deal
with problems or situations
that are expected to arise
during the construction
process, such as local
zoning requirements, local
infrastructure, traffic,
environmental and population
impact, acoustic, energy,
lighting, and aesthetic
considerations. Various
consulting engineers may
also be utilized to solve
specific project problems.
Numerous
drawing plans are involved
in a construction project,
including the following.
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Architectural Plans
The architectural
plans indicate the
layout of the
project, such as
floor plans,
elevations, and
details of the
construction and
architectural
finishes. These
plans are typically
numbered
sequentially with
the prefix "A" for
"architectural."
"Plan view," the
most common type of
an architectural
plan, is an overhead
view of the spaces
on a specific floor.
These plans also
indicate the length,
width and various
heights of the
structure and floor
elevations. Plans
may show notes of
specific
construction
information and may
also contain details
on a specific
portion of work.
Exterior elevations show
the exterior and the
exterior finishes, and
are similar to
photographs of the
exterior. Architectural
schedules on the plans
indicate the door types,
windows, hardware,
plumbing, and light
fixtures in each room.
In
preparing the plans, the
architect utilizes
graphic symbols, instead
of words, to indicate
various facility
conditions. These
symbols indicate the
various types of
material, sizes, and
room finishes to be
used. Symbols may be
shown on the plans
themselves or in the
legends of the plans. [A
list of general symbols
is shown in the Appendix
of Plan Reading and
Material Takeoff, by
Wayne J. DelPico,
published by R. S. Means
Company.]
A civil
engineer is responsible
for the proper drainage
of a site, as well as
the design of land
improvements, such as
paving, curb and gutter
design, retaining walls,
and drainage culverts.
Site plans prepared by
the civil engineer
indicate the existing
and proposed grades of
the land and the
specific location of the
facility on the land.
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Structural
Plans
The
structural plans are
prepared by
structural engineers
and show the
structural design of
a building. These
plans incorporate
foundation planning
with considerations
for rain, snow,
wind, earthquakes,
and other natural
phenomena.
Structural engineers
design the facility
for both "live" and
"dead" loads of the
building. Live loads
consist of the
people, furniture,
and other items that
are not part of the
building, but are
supported by the
building. Dead load
is simply the weight
of the building or
structure itself.
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Mechanical
Plans
Mechanical plans are
prepared by a
mechanical engineer
to show the design
of the various
mechanical systems
in the building.
These systems must
be designed to
incorporate the
proper air
conditioning,
heating, and
ventilation
equipment, as well
as adequate
plumbing, to meet
the needs for all of
the building’s
designated
activities.
Like
the structural engineer,
the mechanical engineer
must design the
mechanical building
systems to meet building
"loads." For example,
office work produces a
certain level of heat
load, whereas cooking in
a commercial kitchen may
produce greater heat
loads. The energy use of
the air conditioning,
heating, pumps, and
other building equipment
are monitored by the
mechanical engineer and
are considered when
specifying building
equipment for an
efficiently designed
building system.
Mechanical plans are
numbered with the
prefixes "P" for
"plumbing" and "H" for
"heating, ventilating,
and air conditioning."
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Electrical Plans
Electrical
plans are prepared by an
electrical engineer, and
show the electrical
distribution system for
the efficient
distribution of power in
a building. The plan
design includes the
distribution of
electrical power from
the utility company and
the distribution to
power-specific
equipment. Engineering
design factors for the
overall electrical
"load" of a building
must also be considered
(e.g., proper sizing and
arrangement of
transformers, panel
boards, circuits, wires,
conduits and power to
the various machines,
equipment and activities
in the building).
Electrical engineers may
also handle the lighting
design requirements of
the building, as well as
specialty areas such as
a central security
monitoring system, a
computerized control
system, and fire and
smoke management
systems. Electrical
plans are numbered with
the prefix "E" for
"electrical."
back to the
top
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Contract Specifications
The second part of
the contracts and bid
documents stage is the
preparation of project
specifications, also known
as "specs." Specs instruct
the contractor how to build
the project, and consist of
contract documents, the
technical specifications of
the materials and the
quality of the materials to
be installed, and the
workmanship for installation
of the materials. Given the
amount of information that
is required to be included,
specs have to be organized
in a coherent manner. The
most widely accepted system
for arranging construction
specifications is called the
CSI Master Format. The CSI
format, developed by the
Construction Specification
Institute, requires four
categories of information:
bidding requirements,
contract forms, contract
conditions, and technical
specifications.
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Bidding
requirements
Bidding requirements
describe the conditions
of the bid to the owner,
and encompass the
Invitation to Bid, the
Instructions to Bidders,
the Information
Available to Bidders,
the Bid Forms and
Attachments, and the Bid
Security Forms. The type
of contract between an
owner and a contractor
dictates the form of the
bidding conditions.
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Contract Form
Contract forms
are divided into
sections, including the
Agreement, the
Performance and Payment
Bonds, and the
Certificates.
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Contract
Conditions
The contract conditions
include the General
Conditions and
Supplementary
Conditions.
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Technical
Specifications
The technical specs are
generally prepared for
each specific project in
the CSI Master Format
and these include
hundreds, perhaps
thousands of individual
items that will be
installed in the
project.
The
CSI Format consists
of 16 "Divisions of
the Work", which
are:
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Division 1 -
General
Requirements
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Division 2 -
Site Work
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Division 3 -
Concrete
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Division 4 -
Masonry
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Division 5 -
Metals
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Division 6 -
Wood &
Plastics
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Division 7 -
Thermal &
Moisture
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Division 8 -
Doors &
Windows
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Division 9 -
Finishes
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Division 10
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Specialties
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Division 11
- Equipment
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Division 12
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Furnishings
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Division 13
- Special
Construction
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Division 14
- Conveying
Systems
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Division 15
- Mechanical
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Division 16
- Electrical
Each CSI Division is
further sub-divided
into three
additional parts,
called General,
Products, and
Execution
(Installation).
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The General
Section
explains the
scope or the
limits of
work for a
particular
CSI Division
and makes a
correlation
between the
technical
specifications
and the
general and
supplementary
conditions
of the
contract.
The
administrative
portion for
any trade
(e.g., shop
drawings)
would be
found in
this
section, as
well.
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The Product
Section
lists the
materials to
be used, by
name and
model
number, and
explains the
quality of
materials
and the
basis for
any
substitution.
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The
Execution
Section
explains the
method of
material
installation,
techniques
to be used,
and
workmanship
quality.
The
American Institute
of Architects (AIA)
is a nationally
recognized,
professional
organization of
architects. Over the
years, the AIA has
developed a document
entitled "AIA
Document A201 -
General Conditions
of the Contract for
Construction
("Document A201").
The Document A201 is
universally accepted
in the construction
industry and
provides the legal
basis and
description of the
following contract
items:
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General
Provisions
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Owner
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Contractor
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Administration
of the Contract
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Subcontractors
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Construction by
the Owner or by
separate
Contractors
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Changes in the
Work
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Time
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Payments and
Completion
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Protection of
Persons and
Property
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Insurance and
Bonds
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Uncovering and
Correction of
Work
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Miscellaneous
Provisions
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Termination and
Suspension of
the Contract
Document A201 provides
legal definitions of the
elements in the
construction process and
the items that will be
provided by the
contractor. Document
A201 also details how to
prepare material
submittals, shop
drawings, and interim
payment requests.
3.
Bidding
The third stage
of the construction process is
bidding. Once an owner
determines that a project is
feasible and that construction
financing is available, the
owner will solicit bids or
proposals from general
contractors and/or specialty
contractors. Owners generally
use trade publications and
newspapers in order to invite
contractors to bid on a
construction job. A copy of "The
Notice to Contractors" will be
shown in the project’s
specifications, providing
contractors with the bidding
procedures.
The following
is the sequence of events to
prepare a contract bid:
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The
contractor obtains a
copy of the plans and
specifications from the
owner in order to
prepare a formal
estimate of the
construction cost or bid
(experienced
construction personnel
prepare the bids).
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The
contractor reviews the
contract plans and
specifications to
determine how to build
the project and to
consider all the
limitations or
conditions the owner
requires for the
project.
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The
contractor solicits bids
from subcontractors,
estimates their direct
material and labor
costs, and evaluates the
ultimate profit
potential of the
contract. The amount of
the bid covers the
estimated costs and a
profit for the
construction project.
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The
owner evaluates all of
the submitted bids and
then awards the
contract.
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The
contract document and
specs contain the
project start and
completion dates, the
progress billing
procedures, the
insurance requirements,
and other pertinent
information.
The
preparation of a bid is the
first step in the cost control
system of a construction
project. The agreed-upon bid
price then becomes the budget by
which the actual expenditures
are measured and drawn against.
The object of a cost control
system is to provide the general
contractor and/or owner with
information regarding actual
project costs versus the
anticipated or budgeted costs.
These cost comparisons become
essential for internal control
purposes.
Standard cost manuals, such as
the "R. S. Means Building
Construction Cost Data," are
used by a general contractor to
compute a bid. These guides
contain a compilation of cost
data for each phase of
construction. There are also
construction cost data guides
for both union and non-union
wage rates. If the Service
examiner needs to estimate
construction costs as part of
the analysis of a study, it is
important to use the proper wage
rates.
Subcontractors bid jobs in much
the same way that a general
contractor does. A subcontractor
may also solicit bids from
sub-subcontractors for specialty
construction.
Working drawings and
specifications provide
information to allow general
contractors to estimate the
project’s construction costs.
Along with using their own
estimators, a contractor usually
has the subcontractor’s and the
material supplier’s information
readily available. If necessary,
a general contractor can perform
the preliminary details and/or
shop drawings (see discussion on
Appendix page 6.6-10) in order
to estimate the proper costs to
construct various parts of a
building. The general contractor
gathers all the information from
his estimators and
subcontractors and then adds in
an amount for overhead and
profit. This final cost estimate
is used in the competitive
bidding for the construction of
a project.
The
cost estimate of a building or
project is broken down and
organized by the construction
divisions shown in the
specifications. The cost
estimate is further detailed by
trade and by item. The general
contractor may also have a bank
of information in order to
estimate labor and material
costs. Otherwise, the contractor
will rely on any of several cost
estimating manuals [e.g., R. S.
Means Building Construction Cost
Data (highly detailed), Marshall
Valuation Services, etc.]
4.
Construction (Field Work)
The fourth
stage of the construction
process, called fieldwork, is
the actual construction of the
project. Fieldwork is broken
down into building permits,
subcontractors, scheduling
subcontractors, shop drawings,
project submissions, and change
orders.
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Building Permits
Before
construction can begin,
the appropriate
municipality must issue
a building permit.
Specifications and
blueprints must be
provided to the
municipality's building
department, along with
the application for a
permit. The period of
time for a permit to be
approved can be lengthy,
especially in the case
of new construction. The
general contractor or
owner may also be
required to submit
results of soil testing,
environmental impact
studies, and any other
necessary testing or
studies. Sometimes, a
public hearing is
mandated, if there is
opposition to the
project. In most cases,
a permit is issued
within a few months. The
cost of the permit and
any related studies may
be the responsibility of
either the owner or the
general contractor.
Construction projects must
also follow the standards of
the applicable building
code. A building inspector
will be involved at various
construction stages in order
to verify that the project
is being constructed
according to municipal code.
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Subcontractors
Subcontractors
range from a one-man
operation to nationwide,
publicly traded
corporations, or
divisions of larger
corporations.
Subcontractors are
distinguished from
general contractors by
their limited scope of
work, which usually
involves a special
skill, knowledge, or
ability. Subcontractors,
which include plumbers,
electricians, framers,
and concrete workers,
generally enter into
contracts with the
general contractor and
may provide the raw
materials used in their
specialty areas. The
general contractor, not
the owner of the
property, pays the
subcontractors.
Materials purchased by
the subcontractors are
generally delivered
directly to the job
site. The
subcontractors’ work may
either be completed in
stages, or it may be
continuous.
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Scheduling of
Subcontractors
The general contractor
schedules the
subcontractor's work so
that the construction
runs smoothly and is
completed on schedule.
The general contractor
is also responsible for
scheduling the
subcontractor in such a
way that one
subcontractor does not
hold up another. This
order on subcontractor
sequencing is known as
the "critical path."
An example
of the sequence in
scheduling subcontractors
for a small project is as
follows:
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Clear the land
(which may include
demolition of
existing structures)
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Excavate the land
(which may include
digging holes and
leveling)
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Pour the foundation
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Frame steel and/or
concrete
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Rough framing
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Rough electrical
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Concrete flooring
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Roofing
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Heating and air
conditioning
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Ductwork for heating
and air conditioning
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Elevators and/or
escalators
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Sprinklers and other
safety equipment
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Install electrical
fixtures
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Insulate and
weatherstrip
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Frame windows and
door sashes
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Install tile and
marble
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Install suspended
acoustical ceilings
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Install toilets,
sinks and other
plumbing fixtures
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Paint walls (inside
and out)
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Shop Drawings
Working
drawings only include
enough detail to show
the general contractor
the overall layout of
the building. The
individual specialty
trades and suppliers use
working drawings to
produce shop drawings
for items such as
granite finishing,
cabinets and
countertops, structural
steel, etc. Shop
drawings detail the
specific building
components and are
usually produced after
the final design phase
but before the beginning
of the construction
phase. Drawings are
prepared in accordance
with the instructions on
Document A201. The
architect/engineer will
also check each shop
drawing for precise
measurements and for
compliance with the
intended building
design.
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Project
Submissions
Project submissions are
an important part of the
construction process.
Each installed building
item must receive the
architect’s approval to
ensure that the item or
product is in
conformance with
technical
specifications. Project
submissions illustrate
each item's intended
use, function, method of
attachment or
installation
requirements, and
placed-in-service date.
When the project is
started, the architect
and /or engineer
monitors the
contractor’s progress
and often approves the
progress payments made
to the contractors. The
architect/engineer may
also make modifications
to the building plans as
needed.
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Change Orders
Change orders are the
written contract
revisions that increase
or decrease the total
contract price. Change
order documents contain
the change order number,
change order date, a
description of the
change, and the amount
of the change order.
Contractors, based on
the terms of the
contract, may also issue
orders.
5.
Construction Payments
The fifth stage
of the construction process is
the construction payments stage.
All construction contracts
extend over a period of time.
The order of any business
operation is to collect money as
soon as work is complete. When a
contractor completes a
prescribed amount of work, the
owner pays the contractor for
the completed work.
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Specifications
for Payment
The specifications for
contract payments are
shown in Document A201,
under the "General
Conditions for
Construction Contracts."
Document A201 contains
AIA Forms G701 and G702.
Form G702 requires that
the contractor break
down the bid into
various parts of work.
The project designer
(architect or engineer)
critically reviews the
G702 schedule of values
that are prepared by the
contractor and either
accepts or rejects them.
The close scrutiny of
this form is due to the
future release of funds
that will be used to pay
for the progress (and
ultimately the
completion) of
construction. This form
also provides the first
basis for the
construction cost
control on a project.
The architect and/or
engineer have a legal
and fiduciary
responsibility for the
accuracy of the cost
allocations. The
architect and the owner
also want an adequate
and timely distribution
of funds to ensure
smooth progress payments
and to ensure that there
will be the necessary
funds to pay for the
completion of the last
portion of the project.
It is also
to the contractor’s benefit
that items of construction
be broken into as many parts
as possible. The more
individual items of work
that the contractor can
identify and complete, the
more items of work he/she
will be entitled to bill and
for which he/she will be
timely paid. Typical
schedules of values in the G
702 may be 15 to 20 pages
long and may contain
hundreds, if not thousands,
of individual cost items.
The
contractor submits the G702
to request payment on a
regular basis. The
contractor completes the
G702 by listing the total
construction cost for each
item of work completed to
date. The amount previously
paid for the work and the
amount accomplished in this
billing period are
subtracted from the total
amount to arrive at the
amount of money remaining,
minus a retainage for the
completion of the work.
It
is extremely important for
the Service examiner to
analyze the G702.
This document provides a
breakdown and analysis of
the construction costs and,
since it is prepared by 3rd
parties, it provides an
element of objectivity.
6.
Completion
The final phase
of the construction process is
known as the completion stage,
and it readies the building for
occupancy.
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As Built Plans
After a facility or
project is completed,
the architect and
contractor prepare a set
of plans known as the
"as built plans." These
plans represent exactly
how the facility was
constructed and they
also incorporate all the
changes to the original
construction plan. It is
very important that the
Service examiner utilize
the "As-Built Plans"
when reviewing a cost
segregation study
because these represent
the actual construction
of the project.
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Notice of
Partial Completion
In some
instances, the owner may
desire to occupy a
portion of the completed
building. In that case,
local building officials
conduct an inspection to
determine if that
portion of the facility
meets all building codes
and is safe to be
occupied. If approval is
granted, a
"Certificate/Notice of
Partial Occupancy" is
issued.
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Notice of
Substantial Completion
Local building officials
issue this notice when
95 % of the construction
is complete.
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Notice of
Completion/Certificate
of Occupancy
A "Notice of Completion"
is requested by the
contractor/owner when
the building is 100%
complete. The project
must pass a final
inspection by local
building officials in
order for the "Notice of
Completion" and the
"Certificate of
Occupancy" to be issued.
These documents are
recorded at the office
of the local recorder
and the property will be
then appraised for
property tax purposes.
SUMMARY
AND CONCLUSIONS
This chapter
provides an overview of the
construction process and should
assist Service examiners in
understanding terminology used
in the construction industry. In
turn, this will assist in the
review of cost segregation
studies.
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