A contractor bid just came in 30 percent over the planned rehab budget and I need to think through what that number actually means before I react to it.
The first question is whether the original budget was built from a real scope or from a ballpark. If the budget was set before anyone walked the property with a flashlight and a moisture meter, then the bid is not 30 percent over budget, it is the first real number on the table, and the budget was always fiction. That distinction matters because it changes what you do next. A budget grounded in a detailed scope with line items means the contractor is pricing something differently than you specified, and you can go line by line and find where the gap lives. A budget that was a rough acquisition estimate means the gap is partly yours to own.
Say the planned rehab budget was 80k and the bid came in at 104k. The 24k overage needs to be located before it can be negotiated. Electrical and plumbing surprises account for a large share of these jumps because they are hard to scope without opening walls. If 18k of the 24k is in those two trades and the contractor walked the property after demo, that number may be accurate. If the overage lives in flooring allowances and cabinet selections, those are negotiable or substitutable without touching the structural work.
Three things worth doing before accepting or rejecting the bid. First, get the bid in full line-item form if it is not already, because a lump sum tells you nothing about where to push. Second, price the two or three largest line items with a second sub directly, not to replace the GC but to validate the number. Third, ask what the bid assumes for materials and what it assumes for labor separately, because if lumber or fixtures have moved since the contractor last priced a job, you may be carrying a buffer that is already priced in and can be discussed.
The harder question is what a 30 percent overrun does to the deal. On a BRRRR or a flip, the acquisition price, the rehab budget, and the ARV are connected. A 24k increase in rehab costs that was not in the buy-side underwriting either compresses the margin or it means the acquisition price was too high for the actual scope. Adjusting the scope down to fit the original budget only works if the cuts do not affect the ARV, and that depends on what the cuts are. Pulling back on a kitchen finish in a market where buyers compare kitchens directly will cut the sale price more than it saves in rehab cost.
What was the original budget built from, a walkthrough estimate or a line-item scope, and did the GC who bid it walk the property before or after any demo had been done?