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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.

INA NETWORKRenovation

Japan's 2026 Home Renovation Tax Deductions: A Complete Guide

Japan runs four separate, government-set renovation tax programs in 2026 — a mortgage-linked tax reduction, an income-tax credit, a fixed asset tax cut, and a gift-tax exemption — each with its own eligibility test, formula, and filing calendar, unlike anything in a US, UK, Australian, or Singaporean tax code. The mortgage-linked reduction returns up to ¥140,000 (approx. USD 933) a year for 10 years; the income-tax credit returns ¥600,000–800,000 (approx. USD 4,000–5,333) in a single year. We walk through the official rate tables, a five-step worked example from Japan's Ministry of Land, Infrastructure, Transport and Tourism, the exact filing documents, and — for property investors — why none of these four programs apply to a rental unit at all.

What is Inner Sash? Installation Costs, Benefits, and Considerations for Rental Property Renovation

A comprehensive guide for rental property owners on inner sash (double windows/secondary glazing) systems, their insulation, soundproofing, and security benefits, installation costs, DIY methods, retrofit considerations, and available subsidy programs.

Types of Scaffolding and Their Features: How to Control Costs in Large-Scale Repairs

This guide explains the types, features, and typical costs of scaffolding needed for large-scale repairs, including single-pipe, wedge-lock, frame, and next-generation systems, along with points for choosing contractors to keep costs under control. Please contact INA&Associates for advice.