Quantification & Costing Flashcards
(192 cards)
Are you aware of the ICMS?
Are you aware of the ICMS?
a. International construction measurement standards – Global consistency in presenting construction
costs
b. July 2017 – 1st edition
c. Aim to provide global consistency in classifying, defining, measuring, analysing and presenting costs
d. A cost clarification system
e. First edition focuses on capital costs
f. Future issues may focus on maintenance
g. High level benchmarking and reporting framework for international cost classification, reporting and
comparison
h. What is it trying to solve?
i. Currently a lack of common language and framework
ii. Benchmarking standard
i. What are the benefits? Allows:
i. Construction costs to be consistently and transparently benchmarked
ii. The causes of differences in costs between projects to be identified
iii. More informed decision making about the design and location of construction projects
iv. Data to be used with confidence for construction financing and investment, decision making
and related purposes
What is IPMS?
a. International property measurements standards – driving consistency, improving confidence in global real estate b. Offices: i. Last revision issued November 2014 ii. Compulsory since c. Residential i. Second draft issued in September 2016 d. Retail i. Consultation to begin in 2018 e. Industrial i. Been through 2 consultations, results due soon
4) How does IPMS relate to the old measurement standard?
a. For offices:
i. IPMS1:
1. Generally closest to GEA
2. Key difference is that balconies are included in IPMS but stated separately
ii. IPMS2:
1. Closest to GIA
2. Balconies again stated separately
iii. IPMS3:
1. Closest to NIA
2. Includes areas taken as:
a. Columns
b. Piers
c. Window reveals
d. Lift lobbies
e. Areas of headroom less than 1.5m
3. All the above included but stated separately
5) Can you convert the new into old?
a. On the RICS website there is a converter from IPMS to RICS Code of Measurement Practice 6th
Edition
6) What is NRM?
a. New rules of measurement
b. NRM 1 – Order of cost estimate and cost planning for capital building works
c. NRM 2 – Detailed measurement for building works
d. NRM 3 – order of cost estimating and cost planning for building maintenance works
What is the difference between CAT A and CAT B fit out?
a. CAT A:
i. Basic landlord fit out
ii. Socks and MEP
iii. Raised access floor
iv. Suspended ceiling
v. “blank canvas”
b. CAT B:
i. More tenant specific
ii. Partitions and doors
iii. Floor finishes
iv. AV
v. IT
vi. Branding
What is the difference between shell and core and fit out?
b. Shell and core:
i. Landlord and core areas
ii. Structure, roof, receptions etc.
c. Fit out:
i. Resi – within apartments and amenity
d. Contractors split differently into a package by package basis – example is that the drylining contractor
doing the cores will also do the apartment areas
How do you take quantities off a BIM model?
a. Extract quantities in Cost X
b. Can extract quantities using a pre completed template, single click to extract into dimension groups
c. Important to check the extraction – quantities are only as good as the inputs.
d. Sometimes columns for example can be inside of each other – SENSE CHECK
Give an example of a variation.
a. Project in Greenwich:
i. Apartment change due to a single purchaser buying two adjoining apartments
ii. Cost to demolish party wall in places, make good, abortive works, new lining and connect
MEP etc.
iii. £40k uplift as the ceiling had to be removed
iv. In order to value:
1. Measured abortive
2. Measured new
b. Media room on project A:
i. Late addition to the contract
ii. Measured the drawings and priced using contract rates for the works
How do you cost a module?
a. Volumetric:
i. At an early stage, £/sq.ft cost
ii. Similar to as you would a building, start with the frame of the unit
iii. Glulam or CLT beams and columns
iv. Frame £50/sq.ft
v. MEP £32/sq.ft
vi. Fully electrical MEP system
vii. SVP runs outside the unit
Is IPMS mandatory?
a. Yes, when implemented subject to planning conditions and client requirements
Why is the COMP changing?
As property markets become more interconnected, globally, the need for consistence in the standards adopted by professionals becomes even greater. RICS wants to be at the forefront of this evolution to global standards and therefore has updated the COMP to make it relevant across the world.
What are the benefits of having IPSM?
Confidence and Consistency in property measurement.
- Provide a mechanism for benchmarking property measurement information across international markets
- Provide a common and transportable method for property practitioners to use
- Enable international occupiers investors and owners
Cost Models (Order of Cost Estimate)
- Initial estimate as part of feasibility estimate
- Stages 0
- May be no design done, outline brief only
Order of Cost Estimate
This is the determination of possible cost of a building(s) early in design stage in relation to the employer’s fundamental requirements. This takes place prior to preparation of a full set of working drawings or bills of quantities and forms the initial build-up to the cost planning process.
Star Rates / Pro-Rata Rates
Used to price work where the unit rates in the contract cannot fairly represent the work done exactly. Usually, contract unit rates that are similar to the work done are used in negotiations to determine the Star Rate.
E.g. cable originally in a 1m trench, now changed to 2m trench. Can assess the original contract rate and change to increase labour etc.
Why might variations arise?
a. change to spec etc
b. discrepancy between contract documents
c. discrepancy with statutory requirements
d. errors and omissions
e. deficiency in employer’s requirements
What form must architects instructions take?
- They must be in writing
- The QS cannot make additions to the contract sum for AIs that are not written
What about oral instructions?
- The contractor has 7 days to write to the architect asking for the AI to be confirmed
- If the architect does not respond in a further 7 days it is taken as being an AI
Can the contractor object to a variation?
- They can make ‘reasonable’ objections in writing for variations relating to those described in 5.1.2 (working conditions / access / working hours etc)
How soon do they have to comply with an instruction?
Forthwith
What can the architect do if they don’t?
What can the architect do if they don’t?
- He can issue a compliance notice
- If there is still no action by the contractor within 7 days, others can be employed to carry out that work and the additional cost charged to the contractor
What are the valuation rules?
There are three rules for measurable work:
a. If it is of a similar character, quantity and in the same conditions as existing work, then the bill rates should be used
b. If it is of a similar character, but different quantity or conditions, the bill rates should be used as a basis but a fair allowance should be made to take account of the difference
c. If it is not of a similar character, fair rates and prices should be used
What about non-measurable work?
about non-measurable work?
- Should be valued by dayworks
- The prime (actual) cost of all the materials, labour and plant used in carrying out the work, along with the % additions to each category as set out in the contract
- Should be calculated in accordance with the ‘Definition of the Prime Cost of dayworks carried out under Building Contracts’ published by the RICS