Perry Lieber flags five common renovation mistakes homeowners make

Santa Barbara construction consultant Perry Lieber says homeowners who manage their own renovation projects often save money in theory but run into costly problems in practice. He identifies five recurring mistakes — from weak budgets and missed permits to poor contractor vetting and incomplete design plans — that can drive delays, change orders and budget overruns.

Why it matters: - Homeowners taking on their own renovation management are trying to cut costs, but weak planning can quickly erase those savings. - Lieber says the most common failures show up in the budget, permitting, contractor selection, structural review and design phase. - Avoiding those mistakes can help property owners keep projects on schedule and reduce the risk of expensive rework.

What happened: - Perry Lieber, a construction contracting consultant and construction manager in Santa Barbara, California, outlined five recurring mistakes he sees in homeowner-managed renovation projects. - Lieber’s comments reflect his experience overseeing residential and commercial construction work in the region. - Lieber said self-managed renovation projects have increased as homeowners try to reduce costs by skipping professional project management.

The details: - The first mistake is inadequate budgeting. - Homeowners often plan for material and labor costs but fail to set aside contingency money for unexpected conditions. - Lieber recommends reserving 15% to 20% of the total project budget for unforeseen expenses. - The second mistake is skipping permits. - Unpermitted work can trigger legal and financial problems when a home is sold. - In some cases, unpermitted work must be demolished and redone at the homeowner’s expense. - Santa Barbara County jurisdictions enforce permit requirements consistently, Lieber said. - The third mistake is poor contractor vetting. - Homeowners often choose the lowest bid without checking licensing, insurance or references. - “A low bid doesn’t mean much if the contractor isn’t licensed or doesn’t carry liability coverage. That risk falls entirely on the homeowner,” Lieber said. - The fourth mistake is ignoring structural issues. - Lieber has seen cosmetic upgrades placed over water intrusion, deteriorated framing and foundation concerns. - Fixing those problems after finishes are installed usually costs far more than addressing them at the start. - The fifth mistake is starting construction without a complete design plan. - Projects that begin without finalized drawings, material selections and specifications often stall, trigger change orders and run over budget. - “When the design isn’t locked in before work starts, decisions get made under pressure on the job site, and that’s usually where costs spiral,” he said. - Lieber’s background and project commentary are documented at PerryLieber.com and Perry Adam Lieber Santa Barbara. - Lieber has used those sites to discuss construction planning and contractor management topics in Santa Barbara.

Between the lines: - Lieber’s message is that DIY project management can look cheaper upfront but often shifts risk back to the homeowner. - The emphasis on permits, licensing and design readiness suggests many budget blowups come from process failures, not just material prices. - The warning about hidden structural issues underscores a common renovation trap: finishing visible surfaces before understanding what is behind them.

What's next: - Lieber says homeowners who study these failure points before starting work are better positioned to manage timelines and budgets. - The guidance applies whether a homeowner hires a professional manager or runs the project personally. - Lieber’s broader goal is to give property owners a clearer picture of where renovation projects most often break down during planning and execution.

The bottom line: - Lieber’s core advice is simple: lock down the budget, permits, contractor checks and design before demolition starts. That preparation can be the difference between a controlled renovation and a costly reset.