Updated April 2026

Mastering Comparative Market Analysis (CMA) for the Japan Takken Exam

Last updated: April 2026

For candidates preparing for the Japanese Real Estate Notary Exam (Takken), understanding how to properly evaluate property prices is a critical competency. In Japan, a Comparative Market Analysis (CMA) is commonly referred to as a property assessment or Satei (査定). Unlike informal estimates, property valuation in the Japanese brokerage industry is strictly regulated by the Building Lots and Buildings Transaction Business Act (Takken Business Act).

This guide breaks down the legal frameworks, core valuation methodologies, and practical scenarios you must understand to pass the exam. For a broader overview of the entire certification process, be sure to read our Complete Japan Takken Exam Exam Guide.

The Legal Framework of CMA in Japan

When studying for the Takken exam, you must distinguish between a broker's market analysis (Satei) and a formal real estate appraisal (Fudosan Kantei). Only licensed Real Estate Appraisers (Fudosan Kanteishi) can perform formal appraisals under the Real Estate Appraisal Act. However, Takken license holders (Takken-shi) are legally responsible for conducting market analyses to establish listing prices.

Article 34-2 of the Takken Business Act

The most heavily tested CMA concept on the Takken exam relates to Brokerage Contracts (Baikai Keiyaku). Under Article 34-2 of the Takken Business Act, when a real estate broker is asked to evaluate a property's sale price or lease rent, they are legally obligated to provide the basis for their valuation (査定の根拠).

  • Mandatory Explanation: The broker cannot simply give a random number; they must explain how they arrived at the price using objective data.
  • Format: Interestingly, the Takken Business Act does not strictly require this basis to be in writing—it can be explained verbally. However, Ministry of Land, Infrastructure, Transport and Tourism (MLIT) guidelines highly recommend written documentation to prevent disputes.
  • Objective Data: Brokers typically rely on REINS (Real Estate Information Network System) to pull recent comparable sales data to justify their numbers.

Core Valuation Methods Tested on the Takken

The Takken exam expects you to understand the three primary approaches to real estate valuation as defined by Japanese Real Estate Appraisal Standards. Even though brokers do not issue formal appraisal reports, they use these exact same methodologies for their CMAs.

1. Sales Comparison Approach (取引事例比較法 - Torihiki Jirei Hikaku-ho)

This is the most common method for residential land and condominium units. It involves finding recently sold properties (comps) that are similar to the subject property and adjusting the price based on specific differences.

The basic formula is:
Indicated Value = Comparable Sales Price × Time Adjustment Factor × Regional Factor Adjustment × Individual Feature Adjustment

For example, if a comparable condo sold 6 months ago for ¥50,000,000, but the market has risen 2% since then (Time Adjustment), and the subject property is on a higher floor adding a 3% premium (Individual Feature), the adjusted CMA value would be calculated as: ¥50,000,000 × 1.02 × 1.03 = ¥52,530,000.

2. Cost Approach (原価法 - Genka-ho)

The Cost Approach is primarily used for detached houses (Ikodate) and standalone buildings. It calculates how much it would cost to completely rebuild the structure today (Reproduction Cost), minus the loss in value due to age and wear (Depreciation).

In Japan, the legal useful life (Hotei Taiyo Nensu) set by the National Tax Agency heavily influences this depreciation. For instance, a wooden residential house has a legal lifespan of 22 years. If a house is 11 years old, it has roughly lost 50% of its structural value.

3. Income Approach (収益還元法 - Shuueki Kangen-ho)

Used primarily for investment properties (like apartment blocks or commercial offices), this method calculates the present value of future income the property will generate. The Direct Capitalization Method (Net Operating Income ÷ Capitalization Rate) is the most common formula tested.

Primary Valuation Methods Used in Japanese Residential Brokerage (%)

Practical Scenario: Executing a CMA in Tokyo

Imagine a scenario on the Takken exam: A client wants to sell their 3LDK condominium in Shinjuku. As the broker, you must establish a listing price.

  1. Gather Data: You access REINS to find 3LDK units in the same or neighboring buildings that sold within the last 3-6 months.
  2. Apply Adjustments: You note that the subject property faces South (highly desirable in Japan) while the comparable faced North. You apply a positive adjustment to the subject property's estimated value.
  3. Present the Contract: You present the suggested listing price of ¥85,000,000 to the seller. When signing the Exclusive Brokerage Agreement (Sennin Baikai Keiyaku), you explain the REINS data and adjustments as your "basis of valuation" to satisfy Article 34-2.

To ensure you allocate enough time to master these practical scenarios, we recommend using a structured Japan Takken study schedule planner.

Exam Strategies for CMA Questions

Questions regarding property valuation and brokerage contracts appear frequently in the "Takken Business Act" section of the exam. Here are a few tips to secure these points:

  • Watch for "Written" vs. "Verbal" traps: The exam loves to trick candidates by stating, "The broker must provide the basis of valuation in writing." This is false under the strict letter of the law (verbal is acceptable), even though written is best practice.
  • Know your contract types: The obligation to provide a valuation basis applies to all three types of brokerage contracts: General, Exclusive, and Exclusive-Dedicated.
  • Practice with mock exams: The wording of Takken questions can be highly nuanced. Reviewing Japan Takken practice test strategies will help you identify these linguistic traps.

Frequently Asked Questions (FAQs)

1. Do I need a Real Estate Appraiser license to perform a CMA in Japan?

No. A Takken license allows you to perform a Comparative Market Analysis (Satei) for the purpose of establishing a listing price or rent for brokerage. However, you cannot issue a formal "Real Estate Appraisal Report" (Kantei Hyokasho), which is strictly reserved for licensed Real Estate Appraisers.

2. How does REINS factor into CMA for the Takken exam?

REINS (Real Estate Information Network System) is the MLIT-designated network used by Japanese brokers. The exam frequently tests your knowledge of REINS because it is the primary source of objective comparable sales data used to satisfy the legal requirement of providing a "basis for valuation."

3. Is the basis of valuation required to be provided in writing?

Under Article 34-2 of the Takken Business Act, the basis of valuation must be provided, but the law does not mandate that it be in writing. A verbal explanation is legally sufficient, though written documentation is the industry standard. This is a very common trick question on the Takken exam.

4. Which valuation method is most commonly tested for residential condos?

The Sales Comparison Approach (Torihiki Jirei Hikaku-ho) is the most relevant method for residential condominiums and land, and is therefore the most frequently tested method in practical brokerage scenarios on the exam.

5. How do homestead exemptions affect property valuation in Japan?

While homestead exemptions do not directly change the market value of a property in a CMA, they drastically affect the seller's net proceeds by reducing capital gains tax (e.g., the ¥30 million special deduction for a primary residence). Brokers must understand this to advise clients properly. Learn more in our Japan Takken homestead exemptions guide.

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