Whole Home
How to Budget for a Full Home Renovation

Building a Realistic Budget for a Full Home Renovation in Austin
A renovation budget that doesn't survive contact with reality is the most common source of stress on a whole-home project. The fix is honest accounting up front, generous contingencies, and clear priorities.
Here's how Brightline helps Austin homeowners build budgets that hold.
Define Your Total Investment Number First
Before any design work, settle on the total dollar amount you're willing to spend — including soft costs, taxes, furnishings, and contingency. Most homeowners think in 'construction cost' and forget the rest.
A reasonable rule: design and soft costs are 8-12% of construction; furnishings 5-10%; contingency 10-15%.
Per-Square-Foot Pricing in Austin
Full gut renovation in Austin in 2026: $400-$650 per square foot. A surface refresh (paint, floors, fixtures, kitchen and bath updates): $150-$250 per square foot.
Homes in Rollingwood, West Lake Hills, and Barton Creek often invest at the high end because the standard of finish is higher.

Line-Item Allocations
On a typical full whole-home renovation: 30% kitchen and baths, 15% mechanical/electrical/plumbing, 15% structural and exterior, 15% finishes and flooring, 10% cabinetry, 10% labor overhead, 5% miscellaneous.
Allocations shift project to project but this framework helps spot lopsided budgets.

Contingency Is Not Optional
Set aside 10-15% of construction cost for unknowns. Older Austin homes hide framing problems, plumbing surprises, and electrical issues behind every wall.
Homeowners who don't budget contingency end up cutting scope mid-project, which leaves visible compromises in the finished home.
Financing Options
Cash, HELOC, cash-out refinance, and renovation construction loans are the four common paths. HELOCs are most flexible; refinancing makes sense if rates have dropped since you bought.
Talk to a lender experienced in renovation lending before committing to a budget — financing constraints can shape your plan.
Design Fees vs Construction Cost
In design-build, design fees are typically 5-10% of construction. In traditional contracting, architect fees alone run 8-15%.
Either way, professional design pays for itself in avoided mistakes.
Where Homeowners Overspend
The two most common over-spends: appliances (people convince themselves they need the $20K range) and decorative lighting (every fixture becomes a $1,500 sculpture).
Decide your splurge categories early and hold the line on the others.
Where Homeowners Underspend
Insulation, HVAC sizing, and waterproofing — all invisible, all the foundations of a home that actually performs. Don't cut here.
These are the items that turn a beautiful renovation into a comfortable, durable one.
Managing Change Orders
Some change orders are unavoidable (hidden conditions). Most aren't — they come from scope creep mid-project. Decide your scope before construction starts and resist additions during build.
Insist on a written change order for every change, signed before work proceeds.
Starting Your Renovation Budget
We help every Austin client build a realistic budget before design begins. Whether you're in Northwest Hills, Highland Park West, Travis Country, Westgate, or anywhere across Austin, the discipline is the same.
Reach out to start the conversation.
Frequently Asked Questions
What's the average cost per square foot for renovation in Austin?+
$150-$250 for a surface refresh; $400-$650 for a full gut renovation.
How much contingency should I budget?+
10-15% of construction cost.
How are design fees calculated?+
Typically 5-10% of construction in design-build; 8-15% for separate architect fees in traditional contracting.
What's the best way to finance a renovation?+
HELOC for flexibility, cash-out refinance if rates have improved, or a dedicated renovation loan.
Where do homeowners typically overspend?+
Appliances and decorative lighting.
Where do homeowners typically underspend?+
Insulation, HVAC sizing, and waterproofing.
Can I get a fixed-price renovation contract?+
Yes for well-defined scopes. Open-book budgeting is more common on complex whole-home projects.
How do change orders work?+
Any scope change requires a written, signed change order with cost and schedule impact before work proceeds.
Should I include furnishings in my renovation budget?+
Yes — 5-10% of construction cost is reasonable.
What's the biggest budgeting mistake homeowners make?+
Treating construction cost as total cost and skipping contingency.
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About the Author
Brightline Remodeling
Brightline is a design-build remodeling firm serving Austin, Texas — from Northwest Hills and Highland Park West to South Austin, Westgate, and Garrison Park. Our team writes from active project experience, not theory.
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