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Cost Guide for Building a New Three-Story Home: Price Ranges, Breakdown, Extra Costs, and Savings Tips

A guide to the unit price and overall cost of a newly built three-story house, including differences from two-story homes such as structural calculations and ground improvement costs. It also introduces four ways to keep construction costs under control.

INA NETWORKMarket Insights

Reading Japan's RC Apartment Construction Cost Index: April 2026 Data and the Logic Behind Land-Use Decisions

Japan's construction cost index for RC (reinforced-concrete) apartment buildings kept climbing in April 2026. Using Tokyo's RC apartment construction-cost index of 143.8, we explain the financial checks every owner should run before committing to a land-use or rental project.

What Is a Real Estate Investment Loan? A Thorough Explanation of the Differences Between Apartment Loans and Proper Loans, and Their Advantages and Disadvantages

This article explains the types of real estate investment loans, how they differ from home loans, compares apartment loans and proper loans, and outlines key points in the lending review process. INA&Associates supports investors in building their assets.

Guide to Using Subsidies for Apartment Renovations: Costs, Programs, and Practical Ways to Save

A comprehensive guide to subsidy programs available for apartment renovations. It also covers typical costs, the advantages and disadvantages of renovating, and practical ways to keep expenses under control. A useful reference for rental property management.

Finance Channel Highlights

Finance Channel Highlights

We bring you a roundup of negotiation strategies with financial institutions and the latest lending terms information shared in the INA Network Finance Channel.

How Much Are the Initial Costs of a Rental Contract? Market Rates and 5 Ways to Save

Initial rental contract costs are typically equal to four to five months' rent. This article explains typical amounts for deposit, key money, prepaid rent, agency fee, guarantee fee, and fire insurance, and introduces five practical ways to save, including free rent, off-season move-ins, and negotiation.

Japan Real Estate for Wealthy Investors | Structural Institutional Advantages and Risk Mitigation — A Japan-Specific Guide

A Japan-specific guide to real estate investment for high-net-worth (HNW) and ultra-high-net-worth (UHNW) investors. Explains three institutional layers unique to Japan — freehold ownership, the Shakuchi Shakka Hō (Land and Building Lease Act), and the rosen-ka inheritance tax assessment system — alongside failure patterns documented by INA&Associates and an investor-type strategy matrix.

Is Home Contents Insurance Necessary for Rental Properties? Coverage, How to Choose, and When It May Not Be Needed

Home contents insurance, often part of fire insurance, is frequently required when renting a property. This guide clearly explains what household items and damages are covered, when the insurance is necessary or unnecessary, and how tenants should choose a policy.

House or Mansion in Japan: Comparing Maintenance Costs, Asset Value, and Resale Before Buying a Home

Should you buy a detached house or a Japanese “mansion” condominium? This Japan-specific guide compares not only livability, but also maintenance costs, repair responsibility, asset value, resale, disaster risk, and future relocation from a

What Are the Maintenance Costs of a Used Condo? Taxes, Repair Reserves, Management Fees, and How to Use Them in Investment Decisions

An overview of the maintenance costs that investors often overlook in used condo investment. Explains property tax, repair reserve funds, and management fees, and introduces a practical framework for choosing properties from a cost perspective.

Large-Scale Repair Costs and Depreciation for Rental Apartments: Typical Budgets, Timing, and Calculation Methods

This article explains the typical cost ranges, repair timing, and depreciation methods for large-scale apartment repairs. It also covers the difference between capital expenditures and repair expenses, along with the related tax-saving benefits.

How to Dispose of Unwanted Rural Land: A Complete Guide to Using, Selling, or Renouncing Inherited Property

A complete guide to disposing of inherited rural land. It covers practical options such as sale, donation, inheritance renunciation, and use of vacant house bank programs to help reduce the burden of fixed asset tax.

Wealth-Building Habits of Real Estate Investors: 5 Ways of Thinking for Long-Term Wealth

This article explains the wealth-building habits shared by successful real estate investors, including cash flow management, smart use of leverage, and systemized information gathering. It introduces five practical ways of thinking for building lasting wealth.