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EAA Ad Requirements: What an AI Listing Writer Must Not Skip

A property advertisement issued by an estate agent has to carry specified information, and that does not change because the wording was drafted by AI. Based on the EAA's practice circulars, this piece lists the three mandatory items, the two steps required before publishing, and the duty to remove an advertisement once the property is no longer available — followed by a pre-publish checklist.

EAA Ad Requirements: What an AI Listing Writer Must Not Skip

The three mandatory items

First: the business name of the estate agency company, together with the estate agent's licence number (or the number of the Statement of Particulars of Business). This is the field that lets the public verify who issued the advertisement against the EAA register.

Second: the unique property number for that property. The EAA's practice circular requires an agent to assign a unique identifying number to every property advertised, and to state it clearly and legibly in the advertisement.

Third: the advertisement date. The same practice circular requires the advertisement to state its date, which establishes when the information in it was accurate and valid.

These three come from the EAA's practice circulars (13-04(CR) for first-hand residential properties; 18-02(CR), effective 1 December 2018, for property advertisements generally). Always check the EAA's latest guidance.

Two steps that come before the three items

First, the vendor's written consent must be obtained before the advertisement is issued. This is a procedural requirement, not a wording problem — however well written the copy is, missing this step is still non-compliant.

Second, all reasonable steps must be taken to verify the accuracy of the information in the advertisement, and to ensure that information is accurate and valid as at the advertisement date. Once price, area or permitted use appears in the advertisement, it falls within what must be verified.

Neither step can be delegated to any copy generator. Both remain the responsibility of the agent and the agency.

Advertisements also have to come down

Once the property is no longer available for sale or lease, or the estate agency agreement ends (whichever is earlier), the agency must remove the advertisements it issued or arranged as soon as practicable.

Leaving out-of-date listing material in place online or in a shop window for months is itself one of the advertising practices the EAA has called out. This has nothing to do with copywriting, but it is part of advertising compliance.

AI writes the words; the responsibility stays with the user

A listing writer's job is to turn property details into readable copy and to adjust headline and tone by platform, whether that is a listing site or social media. It cannot and does not verify information or obtain the vendor's consent on the agent's behalf.

So neither this piece nor the tool claims 'one-click compliance'. The tool's purpose is to hold a place for the fixed fields — company name, licence number, property number, advertisement date — so that they are not dropped through oversight.

Pre-publish checklist

One: is the agency's business name and licence number (or Statement of Particulars of Business number) stated? Two: is the property number stated, and does it map to that specific property? Three: is the advertisement date stated?

Four: has the vendor's written consent been obtained? Five: has the information in the advertisement been verified and is it still accurate and valid as at the advertisement date? Six: if the property is no longer available or the agency agreement has ended, has the advertisement been removed?

Making these six a fixed check before publishing saves far more effort than fixing things afterwards. This piece summarises regulatory requirements only and is not legal advice.

FAQ

Who is responsible for compliance with AI-generated advertisement copy?

The user and their estate agency company. The generator handles the words only; verifying information, obtaining the vendor's written consent, stating the mandatory items and removing advertisements in time are the responsibilities of the licensee and the agency.

Which three items must a property advertisement state?

The agency's business name and licence number (or Statement of Particulars of Business number), the unique property number for that property, and the advertisement date. The source is the EAA's practice circulars.

Must an advertisement come down immediately after a deal?

The practice circular requires removal as soon as practicable once the property is no longer available for sale or lease, or the agency agreement ends, whichever is earlier.

Does advertising only on social media change the rules?

What is regulated is the advertisement or promotional material itself, not the platform it appears on. Any form of promotional material should meet the practice circular's requirements; check the EAA's latest guidance for the exact scope.

Related tools

The rules above plug straight into these free calculators — enter the numbers, then copy or print the result for your client.

Further reading

About this article

N

NestHK

NestHK editorial team — data analysts and on-the-ground Hong Kong renting & buying researchers turning open government data and public transaction records into actionable neighbourhood advice.

Sources

  • Hong Kong Open Data Portal DATA.GOV.HK (transactions, saleable area, transit)
  • Census and Statistics Department (population & household stats)
  • Transport Department public transit data (walking, fares, frequency)

Figures here are indicative ranges; actual transactions and rents depend on the specific unit and latest market conditions. This page is not investment or legal advice.

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