How to Set a Realistic Budget for Your Renovation
Setting a clear budget is the first and most important step in any renovation. Without one, it's easy to overspend, delay completion, or compromise on the finish. A well-planned budget helps you:
- Stay in control of costs
- Prioritise where your money goes
- Avoid surprises and hidden expenses
π‘ WHY IT MATTERS
Setting a clear budget is the first and most important step in any renovation. Without one, it's easy to overspend, delay completion, or compromise on the finish. A well- planned budget helps you:
- Stay in control of costs
- Prioritise where your money goes
- Avoid surprises and hidden expenses
π STEP 1: DEFINE YOUR RENOVATION GOALS
Ask yourself:
- What areas of the home do I want to renovate? (kitchen, bathroom, deck, full home,
etc.)
- What problems am I trying to solve? (space, outdated features, energy efficiency)
- Is this renovation for lifestyle, resale value, or both?
Your goals will shape the scaleβand therefore the costβof your project.
πΈ STEP 2: UNDERSTAND TYPICAL RENOVATION COSTS
Every project is different, but here are general cost ranges in NZ (as of 2025):
- Kitchen Renovation: $30,000β$70,000
- Bathroom Renovation: $25,000β$50,000
- Deck or Outdoor Area: $10,000β$40,000
- House Extension: $3,500β$5,000/mΒ²
- Full Home Renovation: $150,000+
Note: Prices vary based on materials, size, and location.
π STEP 3: BREAK IT DOWN
Create a line-item estimate to break the budget into parts:
- Design + drawings: $1,000β$10,000
- Building consent fees: $2,000β$5,000
- Demolition & prep
- Building materials
- Trades (plumber, electrician, builder)
- Fixtures & fittings
- Painting & finishing
- Contingency (see next step)
π¨ STEP 4: ADD A CONTINGENCY BUFFER
Always add 10β20% extra to cover unexpected costs (e.g. hidden water damage, structural changes, price fluctuations).
Example:
If your estimated budget is $80,000, set aside an extra $8,000β$16,000 just in case. This helps keep your project stress-free.
π€ STEP 5: TALK TO A PROFESSIONAL EARLY
A reputable renovation builder (like us!) will help:
- Price your project based on real-world experience
- Suggest cost-saving ideas
- Prioritise based on your goals and budget
Tip: Avoid going too far into design without knowing your budget range first.
β STEP 6: MAKE DECISIONS EARLY
Late changes are costly. Lock in:
- Layout and design- Fixtures and finishes
- Appliances and fittings
The more decisions made upfront, the better you can stick to budget.
π STEP 7: TRACK YOUR SPENDING
Keep a simple spreadsheet (or use budgeting apps) to track invoices, deposits, and
variations.
π‘ BONUS TIPS
- Focus on high-impact areas (kitchen, bathroom, living)
- Get multiple quotes, but remember: cheapest isnβt always best
- Donβt forget GST and council fees
π NEED HELP PLANNING YOUR BUDGET?
At McKay Brothers Renovations, we help clients turn their renovation ideas into real-world budgets that make sense.
β Transparent pricing
β Realistic quotes
β Stress-free building process