Apartment & Home Renovation Services for International Clients in Japan
Since 2007 | 100+ Projects | English & French Support
Renovating a home or apartment in Japan can be overwhelming—especially if you are not familiar with the language, building rules, or renovation process.
Ai Construction provides English-speaking renovation services in the Tokyo, Saitama, Kanagawa, and Chiba area, supporting both homeowners and investors with clear communication and reliable workmanship.
Free English/French Consultation
Why Choose Ai Construction
- English / Japanese / French support
- 300+ renovation and new-build projects completed
- Licensed Construction Company
- Licensed Real Estate Company
- First-Class Architect Office
- Experience with foreign homeowners, landlords, and investors
- Clear explanations of rules, costs, and building restrictions in Japan
- Transparent pricing, honest advice, and detailed planning
Service Area
We provide renovation services in:
- Tokyo
- Kanagawa
- Saitama
- Chiba
If your property is outside these regions, please visit our Nationwide Construction Advisory page.
What We Can Renovate
1. Apartment Renovation
- Layout changes
- Kitchen & bathroom remodeling
- New flooring, wall finishes, and lighting
- Storage upgrades
- Soundproofing
- Water area relocation (feasibility check required)
2. House Renovation
- Full interior renovation
- New kitchen, bathroom, and utility rooms
- Structural repairs & inspections
- Flooring, insulation, and window upgrades
- Exterior painting & waterproofing
3. Office Renovation & Fit-out
- Small office refresh
- Full office fit-out
- Lighting, partitions, meeting rooms
- MEP check & layout adjustments
4. Property Check Before Purchase
Before buying a home or investment property, we can:
- Review layout, age, and structure
- Check risks & renovation feasibility
- Estimate approximate renovation cost
- Suggest improvements that increase value
Foreign investors find this service especially helpful.
please visit our Buy Property in Japan page.
FAQ: Renovating Property in Japan as a Foreign Owner
- QHow much does it cost to renovate an apartment in Tokyo ?
- A
Full remodel (kitchen, bathroom, walls, floors): ¥4,400,000 – (tax included) / 50〜65㎡
Tip: Costs vary by size, materials, and structural changes. Get a free estimete.
- QDo I need permits to renovate in Japan ?
- A
Yes, for:
- Condos: Restricted by HOA rules (kanri kumiai). We’ll check your bylaws.
- Houses: Structural changes (wall removal, extensions, etc.)
No, for:
- Houses: Cosmetic updates (paint, flooring).
We handle all paperwork for foreign owners !
- QHow long does a typical renovation take ?
- A
2 – 4 months
Delays can occur due to permit approvals or material shortages.
- QCan you work with me remotely if I’m overseas ?
- A
Yes! We provide:
- Video consultations
- Bilingual progress reports
- QDo Japanese contractors speak English ?
- A
Most don’t — but we do. Our team includes:
- English/French speaking Japanese project manager
- Contracts/plans in your language
- QCan you renovate traditional Japanese houses (kominka 古民家) ?
- A
Yes—but it requires expertise. While we can bring your dream kominka to life, these historic homes (often 50–100+ years old) come with unique challenges.