Having a budget is not enough.
You need to allocate it correctly.
The 40–30–20–10 Rule
For a typical flat:
- 40% → Daily-use items
- Kitchen
- Bathrooms
- Flooring
- 30% → Carpentry
- Wardrobes
- Cabinets
- Storage
- 20% → Others
- Lighting
- Curtains
- Aircon
- 10% → Buffer (mandatory)
👉 Every renovation has unexpected costs.
Where You Should Spend More
Waterproofing
- Invisible but critical
- Bad work = long-term problems
Flooring
- Used daily
- Cheap materials wear out fast
Carpentry Hardware
- Good hinges/drawers last longer
- Cheap ones fail quickly
Contractor Quality
- Paying more upfront avoids costly fixes later
Where You Can Save
Feature Walls
- Purely aesthetic
- Can cost $1,500–$3,000
Full Carpentry
- Not every room needs built-ins
- Mix with modular furniture
Premium Tiles Everywhere
- Use high-end only where visible
Furniture During Renovation
- Don’t rush purchases
- Buy after living in the space
Budget Traps to Avoid
Changing Decisions Mid-Renovation
- Causes rework
- Increases cost significantly
Carpentry Scope Creep
- Small additions = big cost over time
“Upgrade Temptation”
- Slightly better options → quickly add up
The Bottom Line
A realistic, well-allocated budget beats an optimistic one.
Renovations:
- Rarely come under budget
- Often meet or exceed expectations
👉 Plan for reality, not best-case scenario.
