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The Impact of AI on the Quantity Surveyor - Chartered Quantity Surveying & Party Wall Surveying

The Impact of AI on the Quantity Surveyor

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Introduction

AI is rapidly changing the world, professional jobs and the construction industry. The quantity surveying profession is certainly not exempt from the impact that AI will have on the working world. In this article, I will discuss how AI will affect the quantity surveyor’s services, the benefits it offers and the potential drawbacks.

The Role of the Quantity Surveyor

The quantity surveyor is a core consultant in the construction industry. He/ she is responsible for the financial performance of a construction project by preparing budgets and monitoring outgoing costs throughout the supply chain. When a quantity surveyor prepares a budget, order of cost estimate or a cost plan they quantify the works by ‘taking off’ various elements of the project. Essentially measuring parts of the building using standardised methods of measurement such as the New Rules of Measurement (NRM1, NRM2 and NRM3). Then, they multiply the quantities with a rate which can be obtained from a variety of sources such as historical cost data, subcontractor or supplier costs as well as published data like that found in SPONS or BCIS.

Quantity surveyors also get involved the procurement of contractors/ subcontractors by preparing tender documents for the supply chain to use in order to come up with an estimate and compare with other tenderers to determine the best value for money. Quantity surveyors also administer contracts by preparing the contract documentation for parties to sign.

What is AI?

AI is a field that can enable computer systems to be able to perform complex tasks that normally only a human could do. AI has existed for awhile with different waves implemented over the years showing an evolution. Today, AI is at it’s fourth wave with generative models like ChatGPT. AI is capable of performing tasks such as writing essays, articles, itineraries and works of art all with a simple prompt and produced in a moment.

How is it being used today and how will it affect the quantity surveyor’s responsibilities?

For the quantity surveyor, AI can handle many menial and time-consuming tasks. AI can do a takeoff, enter data for a cost report, analyse historical cost data, generate value engineering ideas, write documentation such as letters or contract documents and generate minutes of a meeting using voice recognition software like MeetGeek via Microsoft Teams.

What Are the Benefits?

The major benefit is the time-saving capability, by delegating tasks such as preparing a takeoff could save potentially dozens of man hours when preparing a cost plan. This frees the surveyor’s time to focus on providing advice on a complex issue that AI cannot do thus improving the quality of the quantity surveyor’s service to the client.

There is also a cost saving too. The reduction in man hours means that these financial savings can be passed on to the client meaning they pay less on fees and making appointing a quantity surveyor more attractive on a construction project.

What Are the Drawbacks?

AI isn’t perfect and it can make mistakes. This isn’t the real drawback though, as human beings can of course make errors too. However, the concern is like with any technological innovation, people can become over reliant on the software. Quantity surveyors are professionals and need to think critically when presented with a problem. Blindly following whatever the AI tells the QS will damage their ability to advise in the future which will harm their personal and firm’s reputation as well as that of the professional.

Whilst not strictly related to AI, I do have an anecdote that can help illustrate this point. About 8 years ago, I acted for my client who was a subcontractor and they were appointed by a housebuilder. There was a disagreement on the measure of a particular house. After measuring the same building multiple times my measure was still significantly higher than his. We were at an impasse. He was reluctant to budge, insisting that his takeoff had to be correct and we were wrong because he used takeoff software. It turned out that he missed off an entire elevation explaining the large discrepancy immediately. This was an embarrassing mistake on his part and wasted everyone’s time. The point I am making is that this QS was far too reliant on the takeoff software he was using and did not use critical thinking when presented with a problem. I can foresee things like this happening to others with AI.

Another potential drawback is that it could affect the next generation of quantity surveyors. When I worked as a trainee and assistant QS, I did a lot of menial jobs for my employer. Such as taking off for tenders or agreeing variations, sending out tender enquiries to subcontractors and writing minutes of meetings. Whilst this was menial (and sometimes a bit boring) it was essential exposure to the profession and how the industry works. If AI simply replaces all of this then this could rob the next generation of this essential experience.

The Future of the Quantity Surveyor

A popular discussion around AI is that it could one day replace jobs. I have touched in the previous section that AI’s ability to perform menial tasks could make entry level quantity surveyors redundant before they even enter the workforce.

According to Microsoft researchers (Corden, J (2025) AI threatens to eliminate 40 job roles, according to Microsoft’s latest research finding — Is your career safe?), jobs such as interpreters/ translators, sales representatives, customer service representatives, market research analysts and journalists are most likely to be replaced by AI with no mention of various construction professionals like quantity surveyors.  Whilst QSs may breathe a sigh of relief for now, inevitably the question is raised that once the technology improves: are we next?

The RICS believes the answer, is no. In an article, the author concludes that “AI will not ‘take over’ or remove the role of the QS; instead the role will transform and evolve.” (Pollock, A (2024) What impact will AI have on quantity surveying?).

I do have a similar opinion. When I was in university, I attended a lecture that asked a similar question which was will technological advancements like taking off software or cost databases make this profession redundant? The answer the lecturer and myself concluded was no, as while the technology could benefit our jobs and the industry there is no replacing the critical thinking power of the professional. When preparing a cost plan, surveyors have to account for various project specific factors such as:

  • Working conditions
  • Environmental factors
  • Desirability of the project
  • Site access
  • Adjoining properties
  • Cost of borrowing
  • Microeconomics

The above list are factors that technology and possibly AI cannot account for when producing a cost plan or budget, at least in the foreseeable future. My opinion on AI is the same as it was 10 years ago when I attended that lecture, that yes AI will change the quantity surveying professional but it will not replace it. AI cannot replace human specific tasks such as visiting a building site to monitor progress and value an interim valuation, negotiate with a contractor over a contentious claim or meet with a client and build a surveyor/ client human relationship. The quantity surveying profession has evolved many times over the years and it seems will continue to evolve.

Will AI Have an Impact on SMEs?

Fogarty Associates is an SME (Small or Medium Enterprise) and works a lot with other SMEs such as property developers, contractors, subcontractors, architects, engineers, etc. The final question I will raise in this blog post is it is affecting these businesses much and will it do in the future?

The British Chambers of Commerce reported in 2024 that 43% of SMEs have no plans to use AI technology and only 25% of businesses are using them. (British Chambers of Commerce (2024) Most SMEs Still Struggling to Embrace AI).

This is a general statistic and is not specific to the construction industry. However, in my experience the construction industry is notorious for being slow to adopt to change for technological advancements so I believe that for this industry the numbers are lower than what The British Chambers of Commerce reported.

I believe that few SMEs in the construction industry are using AI largely due to the industry’s slow adoption to change but another factor could be that maybe the benefits are more limited for SMEs. There are major benefits for the implementation of AI but if I was preparing a simple order of cost estimate it may not save that much time or that AI can’t replace many of my tasks like visiting sites or negotiating claims. If the benefits of AI are so limited for practices like mine then the risks may outweigh them or it just may simply be not worth bothering.  

Thank you for reading this article. If you’d like to join the conversation then feel free to leave a comment below or share on social media. The references used for this are listed below.

References

Corden, J, (2025) AI threatens to eliminate 40 job roles, according to Microsoft’s latest research finding — Is your career safe?

https://www.windowscentral.com/artificial-intelligence/microsoft-reveals-40-jobs-about-to-be-destroyed-by-and-safe-from-ai

Pollock, A (2024) What impact will AI have on quantity surveying?

https://www.rics.org/news-insights/what-impact-will-ai-have-on-quantity-surveying

British Chambers of Commerce (2024) Most SMEs Still Struggling to Embrace AI

The Impact of AI on the Quantity Surveyor - Chartered Quantity Surveying & Party Wall Surveying

Methods of Valuation

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In all construction contracts, the Employer has to pay the Contractor at regular intervals throughout the project. These are called ‘interim valuations’. There are three different methods: stage payments, milestone payments and valuation of works done to date.

Stage payments are pre-agreed amounts paid at pre-determined times throughout the project regardless of the progress on-site. This provides excellent predictability for both the Employer’s and Contractor’s cash flows. However, it is inaccurate compared to works actually done on the site. For example, if the Contractor is behind programme then their stage payment could be seen as an overpayment and conversely they could be underpaid if they were ahead of programme. In our experience, they are rarely used in construction contracts due to their inaccuracy but we have seen it used on a few subcontracts.

Milestone payments are pre-agreed amounts that are paid when a specific portion of the works has been completed. It offers better accuracy but lower predictability of cash flow planning as a payment will be submitted once a milestone has been achieved which can fluctuate from an agreed programme. In our experience, these are common with various subcontracts where materials are manufactured off-site. Examples include modular buildings, timber frames, windows, lifts and swimming pools.

Valuation of works done to date is the most traditional and, in our experience, widely used of valuation types. This involves assessing the works done to date at pre-agreed intervals. This method is the most accurate as you only pay for whatever works have actually been done. However, it can offer lower cash flow predictability as the Contractor’s programme can fluctuate due to delays or disruption.

Provisional Sums - Chartered Quantity Surveying & Party Wall Surveying

Provisional Sums

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A provisional sum is an allowance that is inserted into tender documents for a specific portion of the works that lacks detail for tenderers to accurately price.

As the design progresses, along with the project, the contactor will eventually be able to provide a fixed price that replaces the provisional sum allowance.

There are two types of provisional sum: defined and undefined:

  • Defined provisional sums are those which have been described in sufficient detail that the contractor is expected to have made allowance for them in their programming, planning and pricing preliminaries. An example could be ironmongery to doors where the scope is known but the exact specification and manufacturer’s reference is unknown.
  • Undefined provisional sums are less well described and so the contractor cannot be expected to make allowance for them in their programming, planning and pricing preliminaries. This means the contractor may be entitled to an extension of time and/or additional payments when the actual works are undertaken. An example could be external works but no layouts, details or specifications are available and thus is a complete unknown.

When describing a provisional sum it should contain: the nature of the works, its location, the quantity and any specific limitations. If this information is not provided or available it is considered undefined.

Quantity Surveying FAQ - Chartered Quantity Surveying & Party Wall Surveying

Quantity Surveying FAQ

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What does a quantity surveyor do?

A quantity surveyor is responsible for the financial performance of a construction project.

They:

  • Prepare estimates (or budgets) of the construction cost.
  • Monitor, report, analyse and advise on costs.
  • Identify potential cost savings that don’t compromise quality and time or present a risk.
  • Advise on life cycle costs.
  • Manage and advise on the procurement and tendering of building contractors.
  • Administering construction contracts and advise their client on compliance.

When should I consider appointing a quantity surveyor?

Ideally, as early as possible. Quantity surveyors can provide very early cost advice as the design is being conceived. As the design develops, the quantity surveyor can influence the process to ensure that costs are kept under control.

What projects would justify using a quantity surveyor?

Quantity surveyors can be involved on any scheme, large or small. In our view, quantity surveyors would have a key involvement for projects over £100k. For projects under this, they may just provide some helpful advice.

Why should I use a quantity surveyor?

Many clients ask this question before our involvement and know the answer once the project has concluded. It’s because quantity surveyors are essential at controlling costs and eliminating wasteful and unnecessary expenditures. A QS will also handle contractual matters which can be complicated, time consuming and, unfortunately sometimes, adversarial.

Who appointments/ employs quantity surveyors?

Anyone involved in construction can appoint or employ a QS. Examples of our clients are homeowners, businesses, property developers, main contractors and trade specific subcontractors.

What makes a good quantity surveyor?

The best quantity surveyors have the appropriate qualifications and experience to do the job. Ideally, a quantity surveyor should have a degree for the profession that is accredited by industry leading professional institutions such as the RICS or CIOB. Many good surveyors have a broad range of experience such as working throughout the supply chain, different property sectors, sizes and complexities.

Many of the best quantity surveyors aspire to become chartered by the RICS. A globally recognised institution that aims to promote the highest standards and practices as well as professionalism and integrity. Becoming a chartered surveyor is a demanding task but proves to all that they are committed to the industry, professional excellence and has good ethics.

How much does a quantity surveyor cost? It depends, quantity surveyors will charge less on simple projects but more on complex or prestigious developments. The best way to find out is to contact a practice. A firm can meet with you to establish your requirements and can prepare a fee proposal which is an estimate on how much their services will be.

What Happens After a Notice is Served?

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After a notice is served to Adjoining Owner, one of three things can happen: the Adjoining Owner consents, dissents or does not reply.

Consent is when the Adjoining Owner agrees to the works being carried out. Works can begin upon expiry of the notice period or earlier if agreed.

Dissent is when a dispute has arisen and an Award must be prepared before any works can commence. When this happens, the parties can either agree to appoint one surveyor to act for both owners known as the ‘Agreed Surveyor’ or appoint their own surveyors. Once appointed, owners cannot rescind the appointments and the first thing surveyors should do is exchange copies of their appointment letters. If two surveyors are appointed then they need to appoint a ‘Third Surveyor’ forthwith.

If the Adjoining Owner does not respond after 14 days then a further notice is sent requesting the appointment of a surveyor.  If after 10 days there is still silence then the Building Owner’s surveyor may appoint a surveyor for the Adjoining Owner.