REAL DATA · REAL RECEIPTS · TOKYO 2024–2025

I bought a Tokyo akiya for $257K and
renovated it for $103K.
Here's every receipt.

The exact spreadsheet I used to cut ¥7,113,000 (30.8%) off my contractor's first quote — plus the 9-play negotiation playbook that made it work.

Instant download · Lifetime access · One-time payment

8 sheets · 27 categories · 100 days of construction documented

Tokyo akiya renovation cost spreadsheet — Summary sheet with ¥7,113,000 savings highlighted
SAVED¥7,113,00030.8% off

Renovating a Tokyo akiya? You’re flying blind on cost.

No transparency.

Tokyo contractors hand you a single number and resist itemizing. You sign your akiya renovation contract without knowing what’s negotiable.

No comparables.

English-language akiya renovation guides give vague "¥10–30M" ranges. Specifics about brand, model, labor, overhead? Nonexistent.

No playbook.

Even fluent Japanese speakers renovating in Tokyo get markups they can’t see — list-price discount theater, padded overhead, scope creep.

I was about to overpay by ¥7,000,000.

In February 2024 I bought a 1980s detached house in Setagaya-ku for ¥39,800,000 — full asking price. Five minutes from Komazawa-Daigaku station. A real Tokyo akiya.

Five months later the renovation quote arrived: ¥23,100,000. It looked professional. It also looked padded — vague line items, a "10% off list" discount on every fixture, ¥2.2M of "general management" overhead. I’d never renovated in Japan. I had no comparables. I almost signed.

Instead I went line-by-line. Four revisions, three months of negotiation, two contractors competing, dozens of items I supplied myself. The signed contract: ¥15,000,000. With change orders during construction, the final paid was ¥15,987,000.

That’s ¥7,113,000 (30.8%) off the original. About $46,000 USD.

Cost comparison spreadsheet — original quote vs. final paid, most yen values blurred for privacy
After we moved in, friends and other expats kept asking the same question: "How much did it actually cost?" I’d open the spreadsheet and walk them through it. After the fifth time, I realized — this shouldn’t be a private conversation. So I’m releasing it.

What’s inside

The Spreadsheet · 8 sheets

  • Summary

    Total invested, savings story, key highlights

  • Property Purchase

    ¥39.8M acquisition + ¥1.9M fees breakdown

  • Cost Comparison

    27 categories: original quote vs. final paid

  • Original Quote Detail

    Every line item from the ¥23.1M quote

  • Final Paid Detail

    Every line item from the signed contract

  • Change Orders

    4 mid-build additions with full detail

  • If I Redid It

    11 specific lessons (priority-coded)

  • What I’d Do Again

    10 highest-ROI decisions

The Negotiation Playbook · 6 pages, .docx + .pdf

  • Play 1

    Become Your Own Materials Supplier

  • Play 2

    Challenge the "List Price -55%" Theater

  • Play 3

    Audit the Overhead Line

  • Play 4

    Defer Non-Critical Exterior Work

  • Play 5

    Spec-Shop Major Appliances

  • Play 6

    Drop Outer Sashes, Keep Inserts

  • Play 7

    Get Multiple Revisions

  • Play 8

    Decode 「別途」

  • Play 9

    Record Everything (the meta-play)

+ Owner-Supply Checklist · Change Order rules · Cheat Sheet

★★★★★
A thoughtful and valuable visit. You can see how much care and vision went into transforming this house — and the tour walks through every renovation choice with photos.
Rebecca · Australia · Airbnb tour guest, May 2026
★★★★★
If you want to see inside a renovated Japanese home, there's nowhere better. We left with a deeper respect for the use of space and the fusion of modern and traditional design.
Joey · San Francisco · Airbnb tour guest, March 2026

Real timeline.

Nov 2024 – Apr 2025, 100 days of construction documented.

Minseon, author of the Tokyo Akiya Renovation Blueprint

A NOTE FROM MINSEON

I’m Minseon. I documented every yen so you don’t have to make the same mistakes I almost did. If this saves you even ¥500,000, the investment paid itself back 8×.

Choose your tier

The Spreadsheet

Budgeting your own renovation

$59

  • All 8 sheets, fully editable
  • 27 categories, every line item
  • "If I Redid It" + "What I’d Do Again" lessons
  • Instant download (.xlsx)
Get instant access →

Instant download · Lifetime access · One-time payment

Questions

Is this in English or Japanese?

The spreadsheet and playbook are both in English. Japanese construction terms are translated with the original Japanese shown for cross-reference with quotes you receive.

I’m not renovating in Setagaya — is this still useful?

Yes. Pricing in Setagaya is mid-to-upper for Tokyo wards; if anything your numbers will be lower. The categories, negotiation plays, and owner-supply strategies apply to any Japanese renovation (Tokyo, Osaka, Kyoto, anywhere).

How is this different from a free blog post?

Blog posts give you vague ranges. This gives you 200+ line items with brand names, model numbers, unit prices, and what was negotiable. It’s the difference between "houses cost money" and a closing statement.

Can I share this with my contractor?

Yes. It’s licensed for personal use including showing it to your own contractor as a reference. Resale or republishing is not permitted.

I don’t have Excel — does it work in Google Sheets / Numbers?

Yes. The file opens cleanly in Google Sheets, Apple Numbers, and LibreOffice Calc. Some advanced formatting may render slightly differently outside of Excel.

How quickly will I get it?

Instantly. The download link appears immediately after purchase and is also emailed to you.

Still have questions? Email [email protected]

Stop guessing. Start with the numbers I actually paid.

One purchase. Lifetime access. Instant download.