LIFULL HOME'S Improves Accuracy of Proprietary AI for 'Decoy Property' Detection! Number of Automatically Delisted Properties by AI Detection Expands 163-fold Year-on-Year
LIFULL HOME'S has significantly improved the accuracy of its proprietary AI for detecting 'decoy properties,' leading to a 163-fold increase year-on-year in automatically delisted properties by AI detection from January to March 2026. This enhancement aims to provide users with a more reliable and secure home-searching experience.
📋 Article Processing Timeline
- 📰 Published: May 13, 2026 at 20:00
- 🔍 Collected: May 13, 2026 at 11:31
- 🤖 AI Analyzed: May 13, 2026 at 11:52 (20 min after Collected)
LIFULL Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; Representative Director and President: Yuji Ito; TSE Prime: 2120), which works to solve social issues through its business, operates the real estate and housing information service 'LIFULL HOME'S.' To ensure users can search for homes with peace of mind, LIFULL HOME'S aims to maintain a high proportion of active listings, meaning 'high property freshness,' and has become the 'No. 1 real estate portal for property freshness' in the rental sector.
By improving the accuracy of its proprietary AI, which has been operating since January 2025 to detect 'decoy properties,' and refining its operational processes, the number of automatically delisted properties by AI detection from January to March 2026 expanded 163-fold compared to the same period last year. We will further promote the eradication of decoy properties and improve 'property freshness' through the utilization of technology.
Proprietary AI enables detection of 'decoy properties' that were difficult to identify with conventional measures.
The proprietary AI-driven decoy property detection and automatic delisting function works by training LIFULL's self-developed AI with property information previously advertised and information on listing status from proprietary surveys accumulated in LIFULL's database. This allows it to detect 'decoy properties' from rental property information listed on LIFULL HOME'S and automatically delist them.
LIFULL HOME'S has implemented various measures, such as an industry-first initiative to automatically delist expired properties by cross-referencing property information held by real estate management companies with information listed on 'LIFULL HOME'S.' It also applies the mechanism of the 'Maintenance Visualization Tool,' which notifies real estate companies about inconsistent listing statuses for the same property, to delist properties highly likely to be decoy properties.
The proprietary AI-driven decoy property detection and automatic delisting function is also effective in detecting expired listings for 'properties managed by real estate management companies other than those we collaborate with' and 'properties listed by only one company,' which were not fully covered by conventional measures.
Detection accuracy and operational improvements lead to a 163-fold year-on-year increase in automatic delisting of decoy properties.
Since the launch of the proprietary AI-driven decoy property detection and automatic delisting function in January 2025, LIFULL HOME'S has continued to improve detection accuracy by operating multiple AI models in parallel, conducting comparative verification, and continuously adding training data. Concurrently, operational improvements have been made, including scrutinizing past data, reviewing the matching logic between detected properties and listed properties, and re-evaluating data collection methods.
These improvements resulted in a 163-fold year-on-year increase in the number of automatically delisted expired properties by AI detection from January to March 2026.
Comment from Yuko Miyasako, Head of 'Property Information Accuracy,' LIFULL HOME'S Business Division:
At LIFULL HOME'S, we consider it an important mission to deliver accurate and fresh property information to users searching for homes. Through this initiative, we have not only improved AI accuracy but also significantly advanced the detection and automatic delisting of expired properties by reviewing the operational process itself.
Experiencing 'I inquired, but it's already unavailable' during a home search is a significant burden for users. We will continue to make improvements through both technology and human operations to create a service where users can search for homes with peace of mind.
About LIFULL HOME'S (https://www.homes.co.jp/)
LIFULL HOME'S is a real estate and housing information service with the concept 'See your dreams come true!'. From rentals, purchasing detached houses and condominiums, custom-built homes, to selling homes. By providing information useful for property and home searching in an optimal way tailored to each individual, we help users discover their true desires and expand the possibilities of a new life.
Japan's largest real estate and housing information service [LIFULL HOME'S]
https://www.homes.co.jp/
For rental room searches and rental housing information [LIFULL HOME'S]
https://www.homes.co.jp/chintai/
For condominium purchases and property information searches [LIFULL HOME'S]
https://www.homes.co.jp/mansion/
For detached house purchases and property information searches [LIFULL HOME'S]
https://www.homes.co.jp/kodate/
For finding custom-built home builders and housing catalogs [LIFULL HOME'S Custom Homes]
https://www.homes.co.jp/iezukuri/
By improving the accuracy of its proprietary AI, which has been operating since January 2025 to detect 'decoy properties,' and refining its operational processes, the number of automatically delisted properties by AI detection from January to March 2026 expanded 163-fold compared to the same period last year. We will further promote the eradication of decoy properties and improve 'property freshness' through the utilization of technology.
Proprietary AI enables detection of 'decoy properties' that were difficult to identify with conventional measures.
The proprietary AI-driven decoy property detection and automatic delisting function works by training LIFULL's self-developed AI with property information previously advertised and information on listing status from proprietary surveys accumulated in LIFULL's database. This allows it to detect 'decoy properties' from rental property information listed on LIFULL HOME'S and automatically delist them.
LIFULL HOME'S has implemented various measures, such as an industry-first initiative to automatically delist expired properties by cross-referencing property information held by real estate management companies with information listed on 'LIFULL HOME'S.' It also applies the mechanism of the 'Maintenance Visualization Tool,' which notifies real estate companies about inconsistent listing statuses for the same property, to delist properties highly likely to be decoy properties.
The proprietary AI-driven decoy property detection and automatic delisting function is also effective in detecting expired listings for 'properties managed by real estate management companies other than those we collaborate with' and 'properties listed by only one company,' which were not fully covered by conventional measures.
Detection accuracy and operational improvements lead to a 163-fold year-on-year increase in automatic delisting of decoy properties.
Since the launch of the proprietary AI-driven decoy property detection and automatic delisting function in January 2025, LIFULL HOME'S has continued to improve detection accuracy by operating multiple AI models in parallel, conducting comparative verification, and continuously adding training data. Concurrently, operational improvements have been made, including scrutinizing past data, reviewing the matching logic between detected properties and listed properties, and re-evaluating data collection methods.
These improvements resulted in a 163-fold year-on-year increase in the number of automatically delisted expired properties by AI detection from January to March 2026.
Comment from Yuko Miyasako, Head of 'Property Information Accuracy,' LIFULL HOME'S Business Division:
At LIFULL HOME'S, we consider it an important mission to deliver accurate and fresh property information to users searching for homes. Through this initiative, we have not only improved AI accuracy but also significantly advanced the detection and automatic delisting of expired properties by reviewing the operational process itself.
Experiencing 'I inquired, but it's already unavailable' during a home search is a significant burden for users. We will continue to make improvements through both technology and human operations to create a service where users can search for homes with peace of mind.
About LIFULL HOME'S (https://www.homes.co.jp/)
LIFULL HOME'S is a real estate and housing information service with the concept 'See your dreams come true!'. From rentals, purchasing detached houses and condominiums, custom-built homes, to selling homes. By providing information useful for property and home searching in an optimal way tailored to each individual, we help users discover their true desires and expand the possibilities of a new life.
Japan's largest real estate and housing information service [LIFULL HOME'S]
https://www.homes.co.jp/
For rental room searches and rental housing information [LIFULL HOME'S]
https://www.homes.co.jp/chintai/
For condominium purchases and property information searches [LIFULL HOME'S]
https://www.homes.co.jp/mansion/
For detached house purchases and property information searches [LIFULL HOME'S]
https://www.homes.co.jp/kodate/
For finding custom-built home builders and housing catalogs [LIFULL HOME'S Custom Homes]
https://www.homes.co.jp/iezukuri/