Lettable Area Survey
A lettable area survey measures floor area for an agreed leasing or property purpose.
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Understanding lettable area survey
A lettable area survey measures floor area for an agreed leasing or property purpose. The result depends on the basis of measurement requested, so the required method and areas must be agreed before the survey. Avoid treating all usable, gross and lettable area figures as interchangeable.
SurveyWorx can discuss measurement of office, retail, industrial or other premises within the agreed scope. Share who will use the result, the relevant lease or measurement instructions and any existing floor plans. Confirm which areas, plans and area schedules are required.

Prepare your lettable area survey enquiry
To scope your lettable area survey enquiry, provide:
- The property or tenancy details and available floor plans
- The measurement basis requested by your property or leasing adviser
- The areas to measure and any previous area schedule to compare
- Access arrangements, occupancy constraints and required deliverables
If the requirement is to depict the premises in lease documentation, see lease plans. Confirm whether you need an area measurement, a lease plan or both. Measurement does not itself determine the rental terms agreed between the parties.
FAQs
Our answers to your questions.
Which measurement method will be used?
Share the method or standard requested by the party who will use the area figure. Different purposes can require different measurement bases. Confirm the basis, inclusions and exclusions with SurveyWorx before the survey so the resulting schedule can be understood in context.
Can I compare the result with an existing lease area?
Provide the earlier area schedule, plan and measurement basis where available. A difference may reflect a changed layout or a different measurement approach. Agree whether the quote includes investigation of that comparison rather than assuming that two figures measure the same thing.
What information will the area survey provide?
Agree the required plan, area schedule and measurement basis before commissioning the work. Identify the tenancy and any ancillary areas needing assessment. The deliverables should explain what was measured so the receiving property or leasing adviser can use the result appropriately.
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