How to Choose the Best Quantity Surveyors in Kenya

Choosing a quantity surveyor is a decision about how your project will measure, plan and control money from the first estimate to final account. For a home, commercial building or development in Kenya, shortlist professionals whose registration you can verify, whose experience matches your project, and whose written scope explains the deliverables, fees and reporting you will receive. Compare proposals on those points before comparing price alone.

What a quantity surveyor does for your project

A quantity surveyor (QS) advises on construction cost and commercial matters. Depending on the appointment and project stage, the work may include preparing an initial cost plan, measuring design information, producing a Bill of Quantities (BOQ), advising on tendering, reviewing contractor bids, valuing completed work, assessing variations and agreeing the final account. The QS helps the client understand what the design is likely to cost and how changes affect the budget.

The exact service varies. A QS preparing a BOQ before tender has a different assignment from one administering valuations during construction or advising on a contractor's claim. Start by identifying the decision or risk for which you need professional support. The quantity surveying services in Kenya you appoint should match that need and the stage your project has reached.

1. Verify professional registration and firm credentials

Before discussing a fee, ask for the lead quantity surveyor's full name and registration number, and confirm the details through the BORAQS registered quantity surveyor directory. BORAQS, the Board of Registration of Architects and Quantity Surveyors of Kenya, maintains a searchable register. Check that the person you are appointing is the person who will take professional responsibility for the work; a company profile or membership claim alone is not a substitute for verifying the individual.

If you are appointing a firm, ask for the firm's relevant registration details as well as the named professional who will lead your assignment. Clarify who will sign reports, attend key meetings and answer technical questions. Ask whether the team has the capacity to meet your programme, particularly if the project needs several outputs on fixed tender or payment dates.

2. Look for experience that matches your building and brief

Experience is most useful when it relates to the type, scale and complexity of your project. A QS who has priced residential buildings may understand common housing elements, while a hospital, school, industrial facility, fit-out or mixed-use development may require different measurement, procurement and cost-control experience. Ask about comparable completed assignments in Kenya and what the professional personally delivered on each one.

Request a concise project list, sample redacted deliverables where available, and client references you can contact. Useful questions include: Was the QS involved from concept or only after tender? What cost-planning or procurement approach was used? How were design changes and budget updates communicated? What lessons would the team apply to your project? A credible response will explain the work and its limits without promising that every project can be delivered at a fixed cost before the scope is known.

3. Match the appointment to your project stage

A project at feasibility stage may need order-of-cost advice, options analysis and a preliminary cost plan. A developed design may need detailed measurement, a BOQ and pre-tender documentation. Before construction, you may need tender evaluation and commercial advice. During construction, the brief could include interim valuations, variation assessment, cost reporting and final-account support. If you are buying a property or planning a renovation, you may need a narrower scope focused on a cost estimate or review of proposed work.

Ask the QS to identify assumptions and information gaps. A cost estimate based on outline drawings is not the same as a priced BOQ based on coordinated construction information. If design details, site information or specifications are incomplete, the consultant should say what that means for accuracy and when the estimate should be updated.

4. Get a clear scope, deliverables and exclusions

The appointment letter or proposal should say what the QS will do, when each item is due, what information you must provide and how many review cycles or meetings are included. It should also state exclusions. For example, a BOQ appointment may not include project management, architectural design, structural engineering, site supervision, statutory approvals or contract administration unless those services are expressly included.

Depending on your brief, deliverables might include:

• A preliminary cost estimate or elemental cost plan, with its basis and assumptions.
• A measured BOQ, tender documents or an analysis of contractor quotations.
• Periodic cost reports showing approved budget, commitments, changes and forecast final cost.
• Valuation or variation assessments, meeting records and final-account advice.

Check whether the cost advice includes or excludes items such as land, professional fees, statutory charges, utility connections, loose furniture, external works, taxes, escalation and contingency. These can materially change the total project budget. The QS should explain the basis of each figure so you can compare like with like and make informed decisions.

5. Compare fees by value and fee basis

There is no meaningful comparison between two fee totals until you know what each includes. Ask whether the fee is a lump sum, a percentage-based fee, a time charge or a combination, and what assumptions underpin it. Confirm how additional services, scope changes, travel, printing or repeated revisions are charged. Ask when invoices are issued and whether payment is linked to agreed milestones.

A low quote can omit important stages or leave responsibilities unclear; a higher quote may include more meetings, cost updates or tender support. Ask each shortlisted QS to price the same written brief. Evaluate the fee alongside relevant experience, time commitment, deliverables, responsiveness and the likely cost of decisions made without timely cost advice. Do not rely on an unsupported promise that a particular consultant will guarantee the final construction cost.

6. Assess communication and cost-control methods

Cost advice only helps when you can understand and act on it. Ask who your day-to-day contact will be, how quickly queries are normally acknowledged, how often you will receive reports, and how urgent decisions are escalated. Find out how the team tracks design changes, records instructions and separates approved costs from estimates or unresolved risks.

For a project with several consultants or contractors, agree a shared process for issuing drawings and recording revisions. Ask how the QS checks quantities and keeps a clear audit trail from source information to recommendations. Digital measurement tools can improve speed, but sound judgement, coordinated information and careful review remain essential.

7. Ask about independence, conflicts and confidentiality

Your QS may assess tenders, valuations or claims involving other project participants. Ask whether the firm has a relationship with a bidder, contractor, supplier or other party that could affect the assignment. Agree how any potential conflict will be disclosed and managed. Also clarify who may receive your drawings, budgets and commercial information, how documents will be stored, and whether the consultant may use project information in future marketing.

Questions to ask before you appoint a quantity surveyor

• What is your BORAQS registration number, and who will lead and sign off this work?
• Which comparable projects have you worked on, and what was your role?
• What exact services and deliverables are included in your proposal?
• What information do you need from me, and what assumptions or exclusions apply?
• How will you report budget changes, risks, variations and forecast final cost?
• How is your fee calculated, and how will extra work be approved and charged?
• Who is my day-to-day contact, and what is the expected turnaround for queries?
• Can I speak with a recent client about your communication and delivery?

Warning signs to take seriously

Pause if a consultant will not provide details you can use to verify registration, cannot explain who is accountable for the assignment, or offers a fixed cost conclusion without reviewing the available drawings and brief. Other warning signs include a vague one-line proposal, unclear extra charges, pressure to make payments outside the agreed terms, reluctance to document advice, or guarantees that ignore design development and market risks. Ask for clarification in writing before appointing.

A practical way to select the right QS

Prepare a short brief describing your project location, building type, current design stage, target programme, available drawings and the decisions you need help with. Send the same brief to at least two or three suitably qualified candidates. Verify registration, compare relevant work and references, then assess each written proposal against scope, deliverables, assumptions, team, communication and fee. Record any agreed changes in the appointment before work starts.

For more on the work a QS can undertake at different stages, read our guide to quantity surveying services. If you are also coordinating consultants, programme and delivery risks, see construction project management in Kenya. You may also find our article on effective project cost management useful when setting up project controls.

The best quantity surveyor for your project is a verifiable professional whose experience and written scope fit your needs, who explains assumptions and fees clearly, and who gives you timely, useful cost advice. Start with a clear brief and compare like-for-like proposals. To discuss the right QS support for a project in Kenya, contact CostEdge Consulting or book a consultation.