[Solving the 'Low Profit Margin' Problem in Real Estate Purchase and Resale] AI Sourcing Support Tool 'Drago' Releases 'Detailed Cost Calculation' Function Covering Renovation Costs and Borrowing Interest Rates
Mansion Research Co., Ltd. has released a new 'Detailed Cost Calculation' function for its AI sourcing support tool 'Drago' for purchase and resale businesses. This feature automates complex cost calculations, including renovation and borrowing expenses, allowing for precise calculation of appropriate purchase prices based on target profits in as little as 5 minutes. It aims to address the challenges of rising material costs and interest rates by providing accurate cost assessments and unifying sourcing judgment standards across companies.
📋 Article Processing Timeline
- 📰 Published: April 2, 2026 at 20:30
- 🔍 Collected: April 2, 2026 at 13:36
- 🤖 AI Analyzed: April 17, 2026 at 06:23 (352h 47m after Collected)
Mansion Research Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo) has released a new function, 'Detailed Cost Calculation,' for its sourcing support tool for purchase and resale businesses, 'Drago ~Sourcing Master~'.

Amidst recent rises in material costs and interest rates, accurately grasping costs in advance has become a lifeline that dictates the success of purchase and resale businesses.
With the addition of this function, complex cost calculations, which previously relied on the experience of personnel or spreadsheets, are now automated.
It precisely calculates everything from sourcing to renovation, maintenance, sales, and borrowing costs in as little as 5 minutes, instantly deriving an 'appropriate sourcing target' by reverse calculation from the target profit.
Key Points of This Release
Complete Visualization of 'Invisible Costs': Covers registration fees, real estate acquisition tax, demolition costs, management fees and reserve funds during ownership, and borrowing interest.
Decision Making in 5 Minutes: Significantly shortens the process from preliminary investigation to profit and loss simulation, which traditionally took 30 minutes to 1 hour.
Transition to Data-Driven Management: Reduces variations in calculation accuracy among individual staff members and unifies sourcing judgment standards across the entire company.
Development Background
Currently, in the used condominium market, in addition to persistently high property prices, soaring renovation costs and interest rate fluctuation risks are squeezing the profits of businesses. To win in the fast-paced sourcing competition, it's crucial to instantly calculate not only 'how much it can be sold for' but also 'how much will ultimately remain in hand.' Drago has evolved to achieve both 'accuracy of judgment' and 'speed.'
Overview of the New 'Detailed Cost Calculation' Function
With this update, specific costs for each project can be meticulously entered and automatically calculated, instantly reflecting them in the overall purchase cost.
Visualization of Basic Information
Basic information, including property price, is correctly displayed in a list.
Automatic Calculation of Sourcing and Sales Costs
Automatically calculates sourcing costs such as 'registration fees' and 'real estate acquisition tax' incurred at the time of purchase, as well as sales costs such as 'brokerage fees' and 'stamp duty' incurred at the time of sale.
Flexible Simulation of Processing Costs
Processing costs essential for property value enhancement, such as 'renovation costs' and 'demolition costs,' can be optionally entered and calculated.
Calculation of Maintenance and Borrowing Costs Based on Holding Period
Maintenance costs such as 'property tax' and 'management fees' are automatically calculated based on the assumed holding period. Furthermore, 'borrowing costs (interest)' for fundraising are also correctly calculated using annual interest rate calculations.
Automatic Reflection in Purchase Price
Automatic reflection of various costs provides a more 'realistic' sourcing perspective. Detailed costs such as entered expenses and renovation costs are immediately aggregated and reflected in the overall purchase price. Since realistic costs reflecting the actual situation on site are incorporated, the clarity of 'how much should be purchased for (sourcing target) to ensure profit' is significantly enhanced.
What is 'Drago ~Sourcing Master~'?
This service automatically aggregates necessary information for judgment, such as market prices, past cases, profitability, and risk factors, providing a one-stop sourcing support tool for purchase and resale businesses. While 'Robo Assessment,' a valuation report creation tool for sales brokerage businesses, proposes sale prices based on market rates, 'Drago ~Sourcing Master~' is designed to enable judgments that look ahead to 'how much it can be sold for' with profit as a premise.
Going forward, we plan to sequentially add practical functions such as calculations based on income capitalization and cost approach valuations, reports utilizing rental data, and support for entire income-generating properties.
Drago ~Sourcing Master~ Website: https://drago-data.com/
【About Mansion Research Co., Ltd.】
Since its establishment in 2011, Mansion Research Co., Ltd. has collected 'data on 140,000 condominiums covering almost all used condominiums nationwide,' 'approximately 400 million real estate sales case data,' and 'analysis data on user attributes aiming for real estate sales.' Based on this data, our company provides customer acquisition support, operational efficiency support, and real estate-related data sales, among other services.
Company Name: Mansion Research Co., Ltd.
Representative Director and President: Riki Yamada
Location: 2nd Nissei Building 5F, 5-2 Kanda Mitoshiro-cho, Chiyoda-ku, Tokyo
Date of Establishment: April 2011
Capital: 100 million yen
■ Contact for this matter
Mansion Research Co., Ltd. Strategy Support Division: Endo, Kuwada
Phone Number: 03-5577-2041
Email: info@fudosan-data.jp