Design Economics & Cost Planning - General Flashcards
What is the difference between an order of cost estimate and a cost plan?
Cost Estimate is a high level forecast of construction cost
Cost plan is construction costs broken down into the elements
What is a cost plan?
Presents the estimated construction cost into a structural elemental or functional format
What is the difference between cost and price?
Cost = Labour, plant, materials and mangement for an activity
Price = Amount the purchase will pay (Cost + Profit)
What is build-ability?
Harnessing the contractors expertise and knowledge during the design phase
What are the advantages of buildability?
Better programming / sequencing of construction methods
Improved quality
Improved building performance and maintenance charachteristics
What is a wall to floor ratio?
Relationship between wall area and floor area
Used to show cost efficiency (Lower Ratio = CHEAPER)
What is shell & core?
The basic structure, services and envelope of a building
AND
Fit-out of the landlord areas
What is a CAT A Fit-Out
‘Developers Fit-Out’
Provides the generic requirements to suit most developers
What is a CAT B Fit-Out?
Overlays the CAT A Provision with bespoke elements particular to the needs of the tenant
How do you prepare an estimate for M&E Works?
Depends on the stage (For feasibility use £/m2 rates)
Otherwise consult an M&E Specialist in my team
What is s106 agreement?
Agreements between planning authorities and developers and are planning obligations
What pricing books are you aware of?
SPONS
BCIS
What sources of data do you use to quantify construction costs?
BCIS Online
SPONS
Benchmarking
Tenders (Feedback Forms)
What is BWIC?
Builders Work In Connection
- Set % typically
What is an OCE?
Order of Cost Estimate
The determination of possible cost of a building early in the design stage in relation to the ERs
What is the purpose of an OCE?
Establish if the building project is affordable and looks to establish a cost limit
What is the typical format of an OCE / Feasibility Estimate?
Rate per m2 / Functional Unit / Element rates
*depends on the amount of info available
What is a functional Unit?
Method of measurement used to represent a prime use of a building e.g. beds, desks, apartments
What information do you need to consider for an OCE?
- Location
- Type of Building
- Floor Area
- Floor to Ceiling Height
- Design Information
- Client Requirements (Brief)
- Programme
- Quality
- Budget / Cashflow restraints
- Site Conditions
- Site Visit
What is the purpose of a cost plan?
Used by the cost consultant to control the development of design
What are the principle components of a cost plan?
Construction Cost
Preliminaries
OH&P
Contingency
Inflation
Assumptions & Exclusions
Area Schedule
Information Used
Why is VAT Excluded?
Different clients incur different levels of VAT
What is contingency?
A sum to cover unknown expenses or unmitigated risks during the project
What are NBS Preliminaries?
Define the scope of works
Include project particulars
Often contain items for pricing which are general items needed by the contractor to carry out the work the cannot be attributed to specific items of work
Name some Preliminaries sections?
Project Particulars
The site / existing buildings
Description of the works
What should be considered when assessing preliminaries?
Length of contract
Location
Type of project
Size of project
Need for temporary works
Need for security
Limitations on method and sequencing
Sectional completion
Sevices
How do you account for inflation when benchmarking or cost estimating?
Using TPI indexes
What does TPI stand for?
Tender Price Index