I get where you’re coming from, but I’m not sure 40% for “unseen” stuff is always necessary. We did a big reno on a 70s place last year and only about 20% went to surprises—maybe we just got lucky? I’d say get a really thorough inspection first. Sometimes the shell isn’t as bad as it looks, especially if you catch issues early.
I’ve seen people get away with a 15% “surprise” buffer and others who blew past 50%—it’s like roulette with old houses. Inspections help, but beach houses are sneaky. Salt air does weird things to wiring and pipes, and you don’t always see it until you open a wall. Did you guys have to deal with any hidden water damage or was it mostly cosmetic stuff?
Title: How much should I budget to renovate a beach house?
Totally get what you mean about the “roulette” feeling. We’re in the middle of our first reno on a 1960s beach cottage, and honestly, the surprises have been a mix of both cosmetic and hidden stuff. Our inspector was pretty thorough, but once we started demo, we found some sneaky water damage behind the bathroom wall—nothing major, but enough to eat up a chunk of our buffer. The salt air is no joke either. We had some light corrosion on the electrical panel that wasn’t obvious at all until we had an electrician look closer.
I’d say our surprise costs are hovering around 25% so far, which feels manageable, but I’m bracing myself for more as we get into the kitchen. Did you have to replace any plumbing or wiring because of salt exposure? I keep hearing horror stories about pipes basically dissolving from the inside out, but ours looked okay (fingers crossed).
How did you guys handle moisture barriers or insulation? Ours was basically non-existent, which I guess is pretty common in older places near the water. We’re debating whether to go all-in with fancy vapor barriers or just do the basics and hope for the best. Part of me worries about over-improving for the neighborhood, but then again, I don’t want to deal with mold down the line.
Curious if anyone’s run into issues with termites or other pests too. We found some evidence of old termite damage, but nothing active. Still, it made me wonder how much extra to set aside for that kind of thing.
It’s wild how every wall you open is like a little mystery box... I’m learning to expect the unexpected, but man, it’s stressful trying to guess how much to budget.
Beach house renos are like opening a bag of chips and finding half air, half regret. I’ve flipped a few along the coast and every single time, the “hidden surprises” eat more of my budget than I care to admit. Last one, I thought I was being clever with a 20% contingency—ha. Ended up closer to 35% once the salt air had its say. Corroded wiring, mystery moisture in the crawlspace, and yes, a family of termites who’d apparently been there since the Nixon administration.
Plumbing is always a gamble. I had copper pipes that looked fine until we cut into a wall and found pinhole leaks everywhere. Salt air just chews through stuff over time. If you’re already seeing corrosion on the panel, I’d double-check everything metal—sometimes it’s not obvious until you’re knee-deep in drywall dust.
Moisture barriers... man, that’s where I used to cheap out, but after one too many moldy surprises, I just bite the bullet now. It’s not glamorous, but it saves headaches (and lawsuits) later. Over-improving is a legit worry, but mold remediation costs more than most upgrades if you get unlucky.
Termites are like bad in-laws—if you see evidence they were there once, assume they’ll be back for Thanksgiving. I usually budget a couple grand for pest control and repairs even if there’s nothing active.
If you’re trying to pin down a number, I’d say take your best estimate and add 30%. Then hide your wallet from yourself for a while. Beach houses are worth it in the end, but man... they do love drama.
I get where you’re coming from, but honestly, I think the “add 30%” rule can be overkill if you’re methodical up front. I’ve done a few where I spent more time (and money) on inspections before demo, and it paid off—caught the worst surprises early, negotiated with contractors, and kept my contingency closer to 15%. Not saying you won’t hit a curveball now and then, but sometimes people just rush in and pay for it later. A little extra homework can save a lot of wallet pain.
