Why First Party Property Data Matters: A Perspective for Real Estate Business Owners
- Jeffery Gray
- Mar 12
- 7 min read

AI's Evolving Impact on Real Estate
Artificial intelligence is fundamentally transforming the real estate sector. While the most visible advances often attract headlines, the most important changes are occurring much deeper behind the scenes. The real transformation is structural. It concerns where critical knowledge resides, who controls access to it, and how decisions are made in an industry increasingly shaped by AI.
Agencies that understand these shifts will be far better positioned to remain competitive and retain control over both their businesses and their data.
These trends are already emerging. They are no longer theoretical. They are tangible, observable, and should increasingly influence how agencies operate today.
Where True Property Understanding Resides
The most comprehensive understanding of a property does not exist on public portals. It resides within industry legacy systems and, increasingly, AI platforms such as Propic’s Claire, and is built through the expertise and day-to-day effort of agents.
Agents inspect homes, assess condition and layout, document strengths and weaknesses, and capture unique features that are not always obvious. They gather buyer feedback, hold critical conversations with vendors about pricing, motivation, and expectations, adjust marketing campaigns, and negotiate outcomes. Of all the information created through this process, only a fraction is ever pushed to portals as a listing.
Why Portal Data Remains Incomplete
Historically, portals have operated as content aggregators. They rely on what is submitted to them and what can be made public. As a result, portal data has always been constrained. It is marketing-led and captured at a point in time.
While this data is useful for browsing, it rarely reflects the true state of a property in depth.
AI systems trained only on these snapshots can describe properties, but they lack the depth required for nuanced understanding. They do not know why buyers objected, why pricing changed, or what almost happened but didn’t. By contrast, AI infrastructure grounded in CRM data can, over time, understand how decisions were made, providing a far stronger foundation for agents and agencies.
Portals increasingly attempt to infer missing detail using AI or augment their datasets with third-party information. But inference is not ground truth. The ground truth remains — or should remain — inside your CRM and AI platform.
As the market becomes more AI-centric, this distinction matters more, not less.
The Quiet Rise of Dual-Plane AI
The real estate industry is now entering a dual-plane AI era.
One plane sits with the portals. This AI focuses on discovery, browsing, presentation, and monetisation of audience data. It helps consumers find property and engage with listings and adjacent services and will continue to play an important role over the medium term. However, portals themselves are increasingly exposed to disruption by AI.
The second plane is embedded within the industry itself. This is AI infrastructure layered over legacy systems such as CRM and property management platforms. Over time, it will retain memory, understand relationships, support decision-making, and streamline workflows. Its purpose is to improve outcomes for the industry.
These two AI planes are fundamentally different and not interchangeable. Over time, economic leverage tends to favour systems that control memory, execution, and ground truth data.
Agencies Rethinking Portal Distribution: A Global Pattern
Globally, agencies are becoming more selective about where and how they distribute listings. This is not a local phenomenon, nor is it isolated to a single market.
The underlying driver is long-term pressure. Year after year of price increases have pushed listing costs higher, in some cases into the thousands of dollars for a single property. At the same time, the value exchange has become increasingly unbalanced. Agencies do the work. Agencies create the data. Agencies incur the cost. Portals monetise the exposure.
In effect, agencies are paying portals to monetise data that cost the agency to create in the first place. This tension is now playing out globally in different ways.
According to Mike DelPrete, in Sweden, leading portal Hemnet has publicly acknowledged that a growing share of the sales cycle is happening pre-market, with properties being sold before they ever reach the platform. This directly impacts Hemnet’s listing volumes and, by extension, its revenue growth.
Hemnet’s response has been to use incentives - a “carrot” approach. It has introduced strategic partnerships with brokerages, offering to pay up to five percent of net revenues to agencies that bring pre-market listings onto the platform. In addition, Hemnet provides branding and product incentives such as “First on Hemnet” badges, increased agent branding, and enhanced exposure within valuation tools.
In contrast, the U.S. market - led by Zillow - has largely taken a “stick” approach. Zillow’s Listing Access Standards require listings to be entered into the MLS within one business day of public marketing. Failure to comply can result in listings being banned from the platform.
At the same time, Zillow offers premium Showcase Listing products that provide enhanced branding and visibility, sold to agents on a per-listing basis.
These two approaches - incentives versus enforcement - are opposite experiments aimed at solving the same problem: the rise of exclusive and pre-market inventory.
What both approaches reveal is the same underlying truth. Exclusive inventory is one of the biggest threats to portal dominance. When listings do not flow freely, portals lose visibility, monetisation opportunities, and relevance in the sales cycle.
Australia, the UK and other markets are now showing early signs of the same dynamic. The strategies differ, but the direction is consistent.
Access Control and It's Importance
Another important structural change is how property data is accessed.
Most first-party property data now sits behind secure CRM and AI systems such as Claire, accessible via APIs with explicit permissions. This data is not freely crawlable or scrapable.
AI systems must integrate properly, with consent, and work in partnership with the industry rather than attempting to bypass it. At scale, this shift has the potential to return leverage to agencies — provided they take deliberate steps to protect and value their first-party property data.
Critically, industry AI platforms such as Claire not only leverage first-party property data but are also able to augment and enrich that data at scale.
The Impact of Consumer AI Adoption
Consumer behaviour is also evolving rapidly. As large language models such as ChatGPT, Gemini, Claude, and Grok become mainstream, people increasingly use AI to assist with decisions, not just searches. They want answers, comparisons, recommendations, and action, rather than long lists of results.
Over time, this reduces the value of pure content aggregation. If AI can help consumers evaluate options without visiting multiple websites, the role of portals naturally changes. In that environment, AI systems with the deepest context and most reliable data become the most trusted.
Longer term, AI has the potential to consume much of the internet as raw material. Content will still exist, but the need to interact with interfaces designed for humans diminishes when AI can understand intent, hold context, and act on a user’s behalf.
From Enquiries to Memory
Traditionally, portals were designed around generating enquiries - sending leads to agents and starting a new conversation each time. This model, often driven by who has paid the most for exposure rather than what is most relevant, does not align well with an AI-native future.
AI performs best when it can retain memory: who someone is, what they have seen, what they have rejected, and what they are likely to do next. Systems that cannot maintain memory are limited. Systems connected to CRM data can deliver richer experiences and far greater value to both agents and clients.
The Shift Back to the Industry
Portals will not disappear. Property discovery will always matter. However, the centre of gravity has the potential to shift.
Agents generate the most complete understanding of properties. That understanding lives in CRMs and now AI infrastructure layered over legacy platforms such as CRM and property management systems. It is created through substantial investment of time and effort and is protected by controlled access. As AI advances, this data becomes more valuable, not less.
If off-portal strategies continue to grow, fuelled by AI, portals will be forced to respond. We are already seeing early signs of this through incentives, penalties, access standards, post-sale data capture efforts, and pressure to push listings back onto platforms after completion so results appear in metrics.
AI does not automatically centralise power. It concentrates power around those who control data, memory, context, and execution. This shift will not happen overnight. It will occur quietly, gradually, and structurally.
The real estate industry already holds one of the most valuable assets in an AI-driven future. The question is whether it recognises this value and invests in industry-led AI infrastructure to protect and compound it - or underestimates its importance and relinquishes it through incentives or enforcement.
Assisted Intelligence: Empowering Real Estate Agencies
A key development in the AI landscape is the rise of agentic, or assisted, intelligence. These systems are capable of goal-directed action, orchestrating complex tasks, learning from outcomes, and adapting over time.
As this technology matures over the next 12 to 24 months, industry AI infrastructure will increasingly support agencies by proactively managing listings, coordinating marketing activity, responding to client enquiries, assisting with negotiations, and handling compliance and operational tasks.
Agencies that embrace assisted intelligence will be positioned to deliver more personalised, responsive, and strategic services in an increasingly competitive market.
A critical decision for business owners will be ensuring their AI platforms are system-agnostic, irrespective of which system of record is currently used (such as CRM or property management software). True assisted intelligence should operate across systems, enabling businesses to change systems of record without requiring wholesale changes to their AI platforms.
Native AI solutions developed within systems of record will generally be constrained to their own ecosystems, reducing future flexibility.
AI-driven software development is also evolving rapidly, threatening traditional Software as a Service (SaaS) business models by enabling new competitors to build products at a fraction of the historical cost. In parallel, AI-powered data migration tools will increasingly make switching systems of record far easier than it is today.
Practical Actions for Agencies
To prepare for this near-term future, agencies should:
• Recognise and communicate internally the value of first-party property data.
• Take proactive steps to clean, maintain, and structure data.
• Ensure contacts are consistently linked to properties in their CRM.
• Capture as much information as possible against each property, including supporting documents uploaded into the CRM.
• Use open-for-inspection tools that integrate directly with the CRM.
• Develop deliberate off-portal marketing strategies.
• Critically assess the value of providing post-sale property data to portals, particularly where a sale occurred off portal.
• Invest now in AI infrastructure that integrates with existing legacy software.
By taking these steps, agencies can protect and enhance the value of their first-party property data, retain strategic leverage in an AI-driven market, and position their businesses for the next wave of industry transformation.
If you would like to learn more, contact PROPIC at:
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