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Real Estate Intelligence

Management covers what happens after you own a property. Across property management, rental management, running a real estate business and renovation, it explains how to improve occupancy, tenant satisfaction, repair planning and profitability. It gives owners and management companies practical know-how for on-the-ground issues such as reducing vacancy, handling move-out restoration and long-term repairs. It reflects lessons from managing 400-plus units in our own operations.

Key topics

  • Property Management — Property management across the building, tenants and income.
  • Rental Management — The practice of rental management: vacancy, tenant handling and restoration.
  • Renovation — How renovation and repair raise asset value and income.

Common questions

What actually reduces vacancy?
Setting the right rent, improving the impression at viewings, and responding to tenants quickly are the basics. Our rental-management articles cover concrete ways to lift occupancy.
How much move-out restoration cost can be charged to a tenant?
Following the MLIT guidelines, you separate ordinary wear from damage caused by intent or negligence. Our management articles set out the practice that avoids disputes.
How should I plan long-term repairs?
Reserve funds and schedule work according to the building's age and equipment replacement cycles. Our repair and renovation articles explain how to prioritize.
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This section is updated on an ongoing basis as new public information and market developments emerge.

Trouble Cases with Rental Management Companies and How to Choose a Reliable One

This article explains the role and scope of work of rental management companies, common trouble cases, and how to choose a trustworthy partner. It also outlines the differences between brokerage agreements and agency agreements. Please contact INA&Associates for advice.

What Problems Commonly Arise During Move-Out Inspections? Restoration Guidelines and Prevention Measures Explained

This article explains common disputes that arise during move-out inspections for landlords, along with ways to avoid them. It also covers the basics of restoration guidelines and the standards for deciding what can and cannot be charged.

How Much Tax Do You Pay on Japanese Rental Income? A Complete Guide to Income Tax, Resident Tax, and Filing

Tax on Japanese rental income is based on real estate income (fudōsan shotoku) — rent minus deductible expenses, not gross rent. This guide covers how to calculate income tax and resident tax, which expenses qualify, the kakutei shinkoku filing process and required documents, aoiro vs. shiro shinkoku, and the penalties for not filing.

Security Cameras for Japan Rental Property: 2026 Cost Guide

In Japan, official list prices put security camera hardware at ¥93,500 (approx. USD 623) and cloud recording at ¥2,200/month per camera (approx. USD 15). For a 6-unit apartment building with 2 cameras, that works out to roughly ¥1,053–2,377 (approx. USD 7–16) per unit per month. This guide walks international landlords through Japan's camera costs, privacy law, and tax treatment using official government and vendor pricing — because unlike the US or UK, Japan has no MLS-style public database of comparable installation costs to check against.

Operating a Parking Lot on Idle Land: Benefits, Risks, and Profitability

This guide explains the benefits of parking lot operations on idle land, such as easy exit, lower disaster risk, and suitability for small lots, along with the drawbacks, including limited tax advantages and lower profit efficiency. It also compares parking with apartment development and shows how to estimate returns.

INA NETWORKFinance

What happens when the useful life of real estate is over? Impact on depreciation, financing, and sales

When you hear about a property that has reached the end of its useful life when investing in real estate, you may think that it is a building that can no longer be used. However, the statutory useful life is the number of years used to calc

When is a rent increase allowed? Justifiable reasons, what to do after notification, and how the lender should proceed

Rent increases are not something that landlords can freely decide. If the current rent becomes unreasonable due to changes in prices, tax burden, building prices, neighborhood market prices, etc., the landlord can request an increase. Howev

Legal Grounds for Rent Increase Negotiations and How to Respond: A Guide for Landlords and Tenants

A practical guide to the right to request a rent increase or decrease, why rent increases may be legally recognized, and how both tenants and property owners should respond. It also covers what to do when negotiations break down.

Is Investing in Wooden Apartments Advantageous? Pros, Cons, and Key Criteria by Structure Type

Wooden apartments can offer lower construction costs and attractive yields, but they also present challenges in sound insulation and fire resistance. This article explains comparisons with reinforced concrete and steel structures, along with the key checks on building age and surrounding conditions needed for investment decisions.

4 Share House Management Failure Cases and Keys to Success: Why Fixed-Term Leases and Concept Design Matter

Explains four common failure patterns in share house management involving location, layout, rules, and facilities. Also highlights success factors such as fixed-term lease contracts and clear concept design, based on INA&Associates’ rental management know-how.

INA NETWORKMarket Insights

Factory and Warehouse Construction Costs per Tsubo: Market Rates, Ancillary Works, and Subsidies

This guide explains typical construction costs per tsubo for factories and warehouses, including the national average of about 705,000 yen and structural cost differences. It also covers key points for ancillary works and how to use business restructuring and supply chain subsidies.

Steps and Precautions for Renting Out Your Condominium: A Practical Guide for Owners

This practical guide explains the process of renting out a condominium due to relocation or other reasons, the available contract types, standard lease, sublease, and fixed-term lease, and the key precautions involved. It also covers how to respond when a housing loan balance remains.

Due Diligence for Defective Properties in Japan: Four Categories and an Investigation Process

Defective properties in Japan are not assets you should buy simply because they are cheap, nor assets you should automatically avoid because they appear risky. The investment decision depends on whether you can separate the type of defect,

What Is the Difference Between a General Contractor and a Subcontractor? Construction Structure Every Real Estate Owner Should Know

Explains the difference between general contractors and subcontractors, including the roles of electrical, plumbing, HVAC, and fire protection specialists, and the ordering structure real estate investors should understand.

Buying Land Classified as Mountain Forest in Japan: Regulations, Disaster Risk, and How to Judge Usability

Land in Japan classified as *sanrin* (山林, mountain forest/forest land) can look attractive because it is cheap and large, but it is risky to judge it on price and size alone. Before buying, you need to confirm whether building is possible,