Surpassed 800 Billion Yen in Total Monthly Appraisal Value. AI Appraisal Document Tool 'Tsunagaru Online Satei' Accelerates Improvement in Appraisal Accuracy Through Overwhelming Real-World Utilization Track Record
Speee Inc.'s AI real estate appraisal system 'Tsunagaru Online Satei' has surpassed 800 billion yen in monthly appraisal volume. By utilizing AI and vast amounts of operational data, it solves industry challenges and provides a highly accurate, data-driven selling experience.
📋 Article Processing Timeline
- 📰 Published: April 11, 2026 at 00:30
- 🔍 Collected: April 11, 2026 at 00:21
- 🤖 AI Analyzed: April 20, 2026 at 05:14 (220h 52m after Collected)
The real estate appraisal document creation system 'Tsunagaru Online Satei', provided by Speee Inc. (Headquarters: Minato-ku, Tokyo; CEO: Hideki Otsuka; TSE Standard: 4499), has surpassed 800 billion yen (*) in total monthly appraisal value due to an increase in new member companies.
Since the full-scale launch of sales in December 2025, this service has received a great deal of positive feedback from real estate companies nationwide. Currently, through the utilization of AI and practical on-site use reaching a scale of 800 billion yen monthly, it has achieved the creation of highly accurate appraisal documents that reflect the latest market trends.
(*) The total amount of appraisal values calculated using Tsunagaru Online Satei per month.
## ■Background: Challenges in the Real Estate Industry and the Evolution of "AI Appraisal" via Data
Appraisal operations in the real estate industry require both internal operational efficiency that balances accuracy and speed, and high-quality external sales materials to be chosen by sellers. Traditionally, these have relied on the experience and intuition of the person in charge, leading to significant challenges such as variations in accuracy and increased creation workload.
Meanwhile, the environment surrounding sellers is changing drastically with the rise of AI. There is an increasing need for a 'convincing sales tool' that accurately organizes information and encourages the seller's decision-making—not just the rationale for the calculated appraisal amount, but also the net amount including various fees incurred during the transaction, the flow up to settlement, and price trends.
Tsunagaru Online Satei solves this problem through 'the evolution of appraisal documents by fusing AI driven by an overwhelming amount of data with actual on-site operations'. In addition to utilizing AI, the appraisal documents reflect the latest actual market conditions through nationwide usage amounting to 800 billion yen. While responding to the increasingly sophisticated demands of sellers, it has realized an environment where 'appraisal documents that are chosen', which do not rely on personal experience, can be created speedily.
## ■The Data-Driven Selling Experience Provided by Tsunagaru Online Satei
To solve these challenges, Tsunagaru Online Satei provides a next-generation selling experience based on advanced data utilization, reflecting the latest market conditions combining AI and on-site usage.
- Highly accurate business consolidation using big data as a learning resource.
Real estate appraisal requires complex operational processes such as government office surveys and field surveys, and has traditionally relied on the long years of experience of the person in charge and area-specific intuition.
Tsunagaru Online Satei consolidates information scattered across various locations into a single platform. We have built a system that digitally reproduces the professional sense of the market, allowing anyone to create highly accurate appraisal documents.
The key to accelerating its introduction nationwide is the fusion of an intuitive UI with accuracy that is constantly updated through this overwhelming use of AI and on-site applications.
- A convincing sales tool that captures the increasingly sophisticated needs of sellers
Modern sellers, for whom information gathering has become easy, sharply demand not only the appraisal amount itself, but also its rationale and transparency.
Tsunagaru Online Satei clearly provides information such as various expenses incurred at the time of sale, the schedule up to settlement, and price trends, in addition to highly objective appraisal values determined by AI.
As sellers become increasingly digitized and more sensitive to information, we are promoting the use of this tool by real estate companies nationwide as a means to properly provide the required information while capturing the seller's desired intentions.
## ■Future Outlook
Through AI and a massive scale of on-site usage amounting to 800 billion yen monthly, Tsunagaru Online Satei goes beyond the boundaries of a simple business efficiency tool...
Since the full-scale launch of sales in December 2025, this service has received a great deal of positive feedback from real estate companies nationwide. Currently, through the utilization of AI and practical on-site use reaching a scale of 800 billion yen monthly, it has achieved the creation of highly accurate appraisal documents that reflect the latest market trends.
(*) The total amount of appraisal values calculated using Tsunagaru Online Satei per month.
## ■Background: Challenges in the Real Estate Industry and the Evolution of "AI Appraisal" via Data
Appraisal operations in the real estate industry require both internal operational efficiency that balances accuracy and speed, and high-quality external sales materials to be chosen by sellers. Traditionally, these have relied on the experience and intuition of the person in charge, leading to significant challenges such as variations in accuracy and increased creation workload.
Meanwhile, the environment surrounding sellers is changing drastically with the rise of AI. There is an increasing need for a 'convincing sales tool' that accurately organizes information and encourages the seller's decision-making—not just the rationale for the calculated appraisal amount, but also the net amount including various fees incurred during the transaction, the flow up to settlement, and price trends.
Tsunagaru Online Satei solves this problem through 'the evolution of appraisal documents by fusing AI driven by an overwhelming amount of data with actual on-site operations'. In addition to utilizing AI, the appraisal documents reflect the latest actual market conditions through nationwide usage amounting to 800 billion yen. While responding to the increasingly sophisticated demands of sellers, it has realized an environment where 'appraisal documents that are chosen', which do not rely on personal experience, can be created speedily.
## ■The Data-Driven Selling Experience Provided by Tsunagaru Online Satei
To solve these challenges, Tsunagaru Online Satei provides a next-generation selling experience based on advanced data utilization, reflecting the latest market conditions combining AI and on-site usage.
- Highly accurate business consolidation using big data as a learning resource.
Real estate appraisal requires complex operational processes such as government office surveys and field surveys, and has traditionally relied on the long years of experience of the person in charge and area-specific intuition.
Tsunagaru Online Satei consolidates information scattered across various locations into a single platform. We have built a system that digitally reproduces the professional sense of the market, allowing anyone to create highly accurate appraisal documents.
The key to accelerating its introduction nationwide is the fusion of an intuitive UI with accuracy that is constantly updated through this overwhelming use of AI and on-site applications.
- A convincing sales tool that captures the increasingly sophisticated needs of sellers
Modern sellers, for whom information gathering has become easy, sharply demand not only the appraisal amount itself, but also its rationale and transparency.
Tsunagaru Online Satei clearly provides information such as various expenses incurred at the time of sale, the schedule up to settlement, and price trends, in addition to highly objective appraisal values determined by AI.
As sellers become increasingly digitized and more sensitive to information, we are promoting the use of this tool by real estate companies nationwide as a means to properly provide the required information while capturing the seller's desired intentions.
## ■Future Outlook
Through AI and a massive scale of on-site usage amounting to 800 billion yen monthly, Tsunagaru Online Satei goes beyond the boundaries of a simple business efficiency tool...