Sawatari (SWT) — Annual Costs
Real-world carrying costs (fixed + variable) for an unoccupied property
This page exists to keep stewardship honest. SWT is a beautiful place — but if the property is unoccupied, it still consumes money each year through tax, utilities, maintenance, connectivity, and repairs.
These figures are a planning framework (not invoices). Actual amounts vary by assessment value, provider, usage, and weather events. The point is simple: sentiment has a real annual cost.
1) Summary: True annual carrying cost (planning reality)
Stewardship planning number (unoccupied):
¥600,000 – ¥650,000 / year
This includes a realistic buffer so the family is not surprised by “one bad year”.
2) Fixed annual costs (exist every year)
These costs occur whether SWT is used or not.
| Category | Planning Range | Planning Figure |
|---|---|---|
| Property tax (固定資産税) | ¥120,000 – ¥180,000 | ¥150,000 |
| Insurance (fire + optional quake) | ¥20,000 – ¥45,000 | ¥30,000 |
| Utilities (low-use connection mode) | ¥100,000 – ¥140,000 | ¥120,000 |
| Local / community fees (自治会費等) | ¥10,000 – ¥25,000 | ¥15,000 |
| Fixed subtotal | — | ¥315,000 |
Utilities note: This assumes the property is unoccupied, but power/water remain active for security and preservation.
3) Variable annual costs (operational reality)
These move year to year. Ignoring them guarantees larger costs later.
| Category | Planning Range | Planning Figure |
|---|---|---|
| Connectivity / Wi-Fi (security critical) | ¥70,000 – ¥90,000 | ¥80,000 |
| Maintenance (preventative) | ¥70,000 – ¥120,000 | ¥100,000 |
| Repairs buffer (reality) | ¥50,000 – ¥120,000 | ¥100,000 |
| Security system ops (batteries, replacements, cloud) | ¥30,000 – ¥60,000 | ¥50,000 |
| Variable subtotal | — | ¥330,000 |
4) Total annual cost (fixed + variable)
Fixed (¥315,000) + Variable (¥330,000) =
¥645,000 / year (planning figure)
Rounded stewardship number: ¥600,000 – ¥650,000 / year
5) Stewardship rule (simple and calm)
If Sawatari cannot reliably generate ≥ ¥650,000 net per year, it is being subsidized by the future.