The rehab budget is the number new flippers most often get wrong. Start by deciding what level of work the house really needs, then budget per square foot as a first check — and replace that with contractor bids before you buy.
| Level | What it usually means | Rough budget |
|---|---|---|
| Light (cosmetic) | Paint, flooring, fixtures, lighting, landscaping, maybe counters | About $15–25 per sq ft |
| Moderate | Kitchen and baths updated, some windows, a roof or furnace, minor electrical/plumbing | About $35–50 per sq ft |
| Heavy | Systems replaced, layout changes, structural or water damage, a full gut | About $60–100+ per sq ft |
These Are Starting Points
Ranges vary with the finishes buyers expect at your price point, the age of the house and contractor availability. Use them to screen deals, never to write the final budget.
Reading the Level From the Listing
- Light: dated finishes in photos, "needs some updating", "cosmetic", "needs paint and carpet".
- Moderate: "needs work", "investor special", "sold as-is", an older roof or furnace called out.
- Heavy: "full rehab", "fire damage", "code violations", "boarded", "not habitable", photos of open walls or missing systems.
The Costs That Sink Flips
- Permits and code: older homes can trigger electrical, plumbing or egress upgrades once you open walls.
- Systems you can't see: sewer line, knob-and-tube wiring, foundation movement. Get a sewer scope and an inspection.
- Lead paint and asbestos in older homes: rules for safe removal add time and cost.
- Scope creep: every "while we're at it" adds to the budget.
- Time: every extra month adds holding and interest costs.
Add a Contingency
Add 10–15% to any rehab budget for surprises — 20% on a heavy rehab or a house built before 1950.
Spend Where Buyers Pay
Kitchens, bathrooms, flooring, paint, lighting and curb appeal return the most. Match finishes to the neighborhood: over-improving for the price range is money you won't get back.