Quantification and Costing Flashcards
How would you price prelims?
Considering the various constraints of the project: Access Location Length of contract Type of contract Temporary works Services Sectional completion Construction methodology
How would you price OH&P?
Derived from a properly considered assessment of main contractor’s overheads and profit found on previous building projects
How have you priced consultant/design fees on your projects?
I haven’t priced consultant fees, they’ve been excluded (client request) however I would use percentage addition similar to previous projects if I had to.
Design fees - similar projects with similar design scope.
How have you quantified risk on your previous projects?
Not a standard percentage, but a properly considered assessment of the risk, taking into account the completeness of the design
Risk types:
- Design development
- Construction risk
- Employer change
- Employer other
What are the full names for NRM1 and NRM2?
New Rules of Measurement 1: Order of cost estimating and cost planning for capital building works
New Rules of Measurement 2: Detailed measurement for building works
How is NRM1 structured?
1 - Context & definitions
2 - Rules for preparing OCE, how to quantify non-measurable works
3- Rules for cost planning, how to quantify non-measurable works
4 - Tabulated rules of measurement
Appendices
How is NRM2 structured?
1 - Context & definitions
2 - Rules for preparing Bill of Quants, Schedule of Rates, how to quantify non-measurable works such as risk, contractors design works
3 - Tabulated rules of measurement
Appendices
What’s the difference between a cost estimate and a cost plan?
Cost plan is an iterative process, updated and tracked as design progresses, to control the development of the design and ensure the client achieves value
How does CESMM break down project costs?
Class A: general items B: GI C: Geotechnical and other specialist processes D: Demolition and site clearance E: Earthworks F: In situ concrete G: Concrete ancillaries H: precast concrete I: Pipework - pipes J: Pipework fittings and valves etc.
What’s the building works estimate?
1 - Substructure 2 - Superstructure 3 - Internal Finishes 4 - Fixtures, Fittings & Equipment 5 - Services 6 - Prefabricated buildings and building units 7 - Works to existing buildings 8 - External works
What’s the works cost estimate?
0 - Facilitating works 1 - Substructure 2 - Superstructure 3 - Internal Finishes 4 - Fixtures, Fittings & Equipment 5 - Services 6 - Prefabricated buildings and building units 7 - Works to existing buildings 8 - External works 9 - Main Contractor's Prelims 10 - Main Contractor's OH&P
What’s the cost limit?
0 - Facilitating works 1 - Substructure 2 - Superstructure 3 - Internal Finishes 4 - Fixtures, Fittings & Equipment 5 - Services 6 - Prefabricated buildings and building units 7 - Works to existing buildings 8 - External works 9 - Main Contractor's Prelims 10 - Main Contractor's OH&P 11 - Project/design team fees 12 - Other project/development costs 13 - Risk allowances 14 - Inflation CAN BE INCL OR EXCL INFLATION
Define NIA
The usable area within a building measured to the internal face of the perimeter walls at each floor
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Define GEA
The area of a building measured externally at each floor level.
Define GIA
The area of a building measured to the internal face of the perimeter walls at each floor level
What’s a cost/ft2 for a strip out of a London office?
C. £7/sqft London office based on experience, not too cellularised
Can vary depending on factors such as cellularisation, access to building etc
What would you expect for a cost/sqft London office fit-out shell to cat a?
c. £45 - 55 sqft for high end office London
Cost/ft2 for a 2-bed resi unit in central London?
CHECK - NOT MY SPECIALITY - £250K?
What’s BCIS?
Building Cost Information Services - Cost and price information is collected by BCIS from across the UK construction industry, then collated, analysed, modelled, interpreted and made available to the industry to facilitate accurate cost planning.
Where would you get rates from?
BCIS, historic in house data, SPONs, build up rates, market test
What are the RIBA stages?
0 - Strategic definition 1 - Preparation and brief 2 - Concept design 3 - Developed design 4 - Technical design 5 - Construction 6 - Handover and close out 7 - In use
What purpose does the RIBA PoW 2013 serve?
- Splits project into key project stages w/ defined outcomes
- Shared framework for design and construction
- Offers both a process map and a management tool.
How would you go about market testing?
- Hide name of project/client
- Speak to supplier, give quants, drawings if necessary, get price for materials
- Speak to subcontractor, give quants, drawings if necessary, get price for labour
GET PARTIES TO SIGN NON-DISCOUSURE AGREEMENT
What’s a non-disclosure agreement?
A legal contract between at least two parties that outlines confidential material, knowledge, or information that the parties wish to share with one another for certain purposes, but wish to restrict access to or by third parties
What are the advantages of market testing?
Current day cost for works, bespoke to the projects actual requirements
What are the different waterproofing grades?
Grade 1 – Some water seepage and damp is tolerable depending on the intended use. Car parks etc.
Grade 2 – No water penetration is acceptable, some damp is okay. Garages, workshops etc
Grade 3 – No dampness or water penetration is acceptable – Ventilated residential / commercial spaces e.g. apartments and offices
