Accurate Measured Area Reporting Across the UK
RICS Area Reports and IPMS Area Reports provide structured, standardised measurements of internal floor areas.
If you are leasing, selling, acquiring, refinancing or managing property in the UK, measured area reporting ensures all parties work from clear and consistent data.
RICS stands for the Royal Institution of Chartered Surveyors. IPMS stands for International Property Measurement Standards. Both frameworks exist to remove ambiguity from building area calculations. Instead of relying on informal measurements or scaled drawings, you receive documented figures aligned to recognised standards.
Standardised measurement matters because small discrepancies in floor area can have significant financial implications. Rental values, service charges and valuations often depend on defined measurement bases. RICS Area Reports and IPMS Area Reports reduce disputes by clearly setting out how areas have been calculated.
What’s Included in RICS and IPMS Area Reports?
Measured area reporting is not simply a floor plan with a number attached. It is a structured assessment aligned with published guidance and recognised definitions.
RICS Property Measurement typically includes Gross Internal Area (GIA), Net Internal Area (NIA) and other defined metrics depending on property type. GIA represents the total enclosed area within the external walls. NIA reflects the usable area available for occupation, excluding specific non-usable spaces in accordance with guidance.
IPMS Area Reports apply internationally recognised definitions. These include:
IPMS 1: The total area of a building measured to the external perimeter, commonly used for benchmarking and asset comparison.
IPMS 2: The internal area measured to the internal dominant face, often used for whole building reporting.
IPMS 3: The occupier’s area, suitable for leasing and tenant-related calculations.
Understanding the differences between GIA, NIA and IPMS standards is essential. Each serves a different purpose and may be required depending on lease terms, valuation instructions or lender requirements in the UK.
Our RICS Area Reports and IPMS Area Reports are prepared in line with current guidance. Clear schedules, annotated plans and defined measurement bases are provided so you understand exactly what has been included and excluded.
RICS and IPMS vs Informal Area Calculations
Informal area calculations - such as scaled drawings or estate agent estimates - may lack consistency and transparency. In contrast, structured RICS Property Measurement and IPMS Area Reports follow defined rules and published methodology. This distinction is particularly important for commercial property, mixed-use developments and high-value assets across the UK where accuracy supports financial certainty.
If you require RICS Area Reports or IPMS Area Reports in the UK, speak to our team to confirm the appropriate standard for your property and reporting needs.