Our Services – Area Referencing


Precisely measuring your property illustrating GIA, GEA, NIA measurements to IPMS standards.


Precisely measuring your property illustrating GIA, GEA, NIA measurements to IPMS standards.

THS Concepts verifies the precise size of office space, industrial units and other commercial property, which can help in negotiating lease or rent rates.

Understanding the exact size of your commercial property is important to ensure you are not over-or-underpaying when it comes to rates. Often commercial leases are based on price per square metre of usable space, so having this figure as accurate as possible is important.

Using modern survey equipment we provide you with accurate floor plans illustrating key area measurements such as GIA (gross internal area) and IPMS (usable floor area).

Working to the International Property Measurement standards (IPMS)  methodology, we ensure the measurements we quote are correctly referenced to a global standard.

3 Simple Steps To Get Your Area Referencing Survey


Use our contact form or call 020 8935 5160  to tell us about your area referencing requirements and get your quotation.


We arrange a convenient time / date for the survey work to be undertaken.


Your area reference drawings are sent within 3 working days of the survey date.


What You Receive

Site Survey

Our experienced survey team visits your property to undertake a detailed survey, picking up all required details.

We work around you and can visit out of hours in the evening or on Saturdays or Sundays if required.

Floor Plans/Report

Following the survey we draw up, calculate and produce your drawings and/or report, illustrating the areas you want clarifying.

This process is usually completed within 2 days of the survey being completed.

After Care & Ammendments

We work until you are 100% happy with the drawings and/or reports we issue.

Amendments to the report to show variations or change calculation parameters, etc., are free of charge.

Key Area Referencing Definitions

Common Facilities
Those parts of a building that would, in multiple occupation, provide shared facilities that typically do not change over time and may include, for example, circulation areas, stairs, escalators, lifts/elevators and motor rooms, toilets, cleaners cupboards, plant rooms, fire refuge areas, maintenance rooms and unallocated parking spaces.

Floor Area
The area of a normally horizontal, permanent, load-bearing structure for each level of a building.

The sum of the areas of each floor of an office building measured to the internal dominant face and reported on a component-by-component basis for each floor of a building. Sometimes known as Gross External Area.

IPMS 2 – Office
The sum of the areas of each floor level of an office building measured to the internal dominant face and reported on a component by component basis for each floor of a building.

IPMS 3 – Office
The floor area available on an exclusive basis to an occupier, but excluding standard facilities, and calculated on an occupier-by-occupier or floor-by-floor basis for each building.

Looking For a Quote? Get In Touch Today

Message Us Here
Call 020 8935 5160

Let us know a little bit of information about your project and we can provide a fixed price quote with our next available survey date.

If you aren’t sure on what you require, we are happy to provide assistance and talk you through the process. Just give us a call or send us a message.

Client Testimonials (Google & TrustPilot)

“Fantastic Service – a really great service quick turn around and great quality survey. Cannot recommend enough.”
5 Star Google Reviews
Julian Thake
(Google Reviews)

“Excellent service thanks.”5 Star Google Reviews

David Langton
(Google Reviews)

“Excellent service – very professional and supportive to a new client. Would recommend THS Concepts to anyone and my thanks to Tom Ayre for delivering our requirements so timely – and very reasonable price. Thank you!”5 Star Google Reviews
Sue Bettis
(Google Reviews)

Example Floor Plan Drawings

area referencing floor plan example
Example of Measured Building Surveys Floor Plan

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