Structural Disaster on an Occupied Rental: Saving the Refi

TLDR

A rental failed its refinance appraisal because of structural issues. The structural engineer’s first plan was to rebuild the entire foundation, which would have cost more than the house. We collaborated on a cheaper approach: build a new internal beam-and-pier system inside the existing walls, leaving the failed foundation in place as a weather wall. Stop the bleeding, do the repair, then cosmetic. Always in that order.

Table of Contents

• The BRRRR Math That Got Stuck
• When the Engineer’s Plan Is Too Expensive
• A Cheaper Plan That Still Works
• The Flood That Proved the Rule
• Three Steps in Order: Bleeding, Structure, Cosmetic
• Setting Expectations Like You Mean It

The BRRRR Math That Got Stuck

The whole game with a buy-rehab-rent-refinance rental is the exit. You buy it for roughly $120,000. You put about $40,000 into it, all in. That includes the renovation, appraisal fees, closing costs, utilities, insurance, the boring bucket.

Total in: around $160,000.

A tenant moves in. Rent starts. You go to the bank and ask for a new loan on the stabilized property. They send an appraiser. You are hoping for $200,000. The bank lends 80 percent of appraised value, which is $160,000, right at your all-in cost.

That is the BRRRR. The bank buys the house from you on paper, pays off whatever you used to buy it, and you end up with a cash-flowing rental and your original capital back to redeploy.

The call comes in. The appraisal failed. Structural issues.

A BRRRR does not fail because the rehab is ugly. It fails because the appraisal is blocked. Structural, plumbing that cannot pass, electrical that cannot pass, roof that cannot pass. Anything the appraiser flags as a material defect kills the loan.

No appraisal, no refi. No refi, no capital back. No capital back, no next deal.

When the Engineer’s Plan Is Too Expensive

The bank wants a letter from a structural engineer that says the house is sound. The engineer inspects the crawl space and sends his plan.

His plan is to hold up the house on jacks, remove the entire existing foundation, pour a new footing, and build a new foundation underneath. That is the textbook answer. Open the code book and that is what it tells you.

The problem is the textbook answer costs more than I paid for the house.

Here is the thing most people miss about a structural engineer. By default, he is going to look at the code book and design a solution to code. What you are actually hiring him for is not to read the code book to you. You are hiring him to look at the principles behind the code, understand your financial constraints, and work with you on a custom plan that gets the house to a safe standard without rebuilding the whole world.

That is not always possible. Sometimes the damage is so bad the textbook answer is the only answer. But before I accepted a build that cost more than the asset, I was going to do my own investigation and come back with a proposal.

Pro Tip

Never accept the first plan from a structural engineer without proposing alternatives. He is a structural engineer, not a financial planner. His job is to keep the house up. Your job is to keep the math alive. Bring him your plan and work backward together.

A Cheaper Plan That Still Works

I sent one of my guys under the house to film every inch. Then I sat down with the footage and designed a different fix.

The original exterior foundation walls were cracked and failing. The new plan does not try to repair them. It leaves them in place and treats them as a weather wall only. No structural load.

Inside those walls, we build a new structural system:

1. A new beam runs the perimeter of the house, just inside the existing foundation walls.
2. We modify the floor system to tie into the new perimeter beam, extending joists outward to attach them to the new structure.
3. Block piers sit on new footings under each beam.
4. The new footings and piers do all the load-bearing work from here forward.

The old foundation walls keep the weather out. The new interior foundation holds the house up.

The engineer reviewed it, worked out the beam sizes, pier spacing, and footing specs, and signed off. That is how you collaborate. You do not fight him. You propose an alternative that respects the physics and makes his job easier to approve.

The cheapest structural plan is the one that uses what is already there and adds only what is needed.

The Flood That Proved the Rule

There is a catch. A tenant was living in the house. We could not displace them. That meant we could not cut the floors open from above, which is the easy way to pour new piers and beams. We had to work from the crawl space only.

My crew suited up, rigged a concrete mixer outside, and started rolling five-gallon buckets of concrete through a cut in the wall into the crawl space. Then it rained. Then it rained again. Then it rained a third day in a row. The crawl space flooded.

Inches of water in the back yard. Inches of water in the crawl space. The repair job was sitting in a puddle.

That is when I realized the mistake. I had not stopped the bleeding before starting the repair. Water was still getting under the house through a combination of negative grade and an incomplete gutter system. We were trying to pour new foundations into a swamp.

The Biggest Dumb Mistake

Skipping step one. I knew the rule. I know the rule now. I still skipped it under pressure because the clock was ticking on the refi. Structural work done on wet ground fails. Every time. No matter how good the structural work is.

We stopped, went topside, built out a full gutter system, ran buried piping from the gutters through the back yard to the street, and corrected the grade. Water now leaves the property instead of sitting next to it. Only then did we restart the structural work.

Three Steps in Order: Bleeding, Structure, Cosmetic

Every structural issue follows the same three-step sequence:

1. Stop the bleeding. Usually water intrusion. Sometimes pests like termites or other wood-destroying insects.
2. Do the structural repair.
3. Cosmetic.

Go out of order and step two undoes itself. New footings sink into wet ground. New beams rot from moisture. New drywall cracks within a year as the house keeps moving.

Water defense stack, from outside to inside:

If your property has negative grade you cannot fix with dirt alone, build a retaining wall and put a French drain behind it. Water hits the wall, drops into the drain, and gets routed around the house. That is how you stop the bleeding on a hard site.

Structural repairs are wasted money until the water is gone. Always in that order.

Setting Expectations Like You Mean It

I sent the repair to a subcontractor. My own crew dug the footings to my spec so I could check them myself. Then the sub came in to build the block piers and beams. I like that model because the most important part of a footing is the one I cannot see after the concrete is poured.

The sub sent me photos asking for payment. The photos showed a single row of stacked blocks, no mortar, sitting on the new footing. The scope of work said two rows of blocks, mortared, with specific beam connections. The photos showed none of that.

Do Not Pay for This

If the work does not match the written spec, hold payment. That is not cruelty. It is the only lever you have. A contractor who gets paid for wrong work does wrong work forever. A contractor who does not get paid until it is right learns fast.

I met the sub on site. Expectations get delivered three ways:

1. Written. Text or email so there is a record.
2. Verbal. In person at the job site, walking through the work.
3. Media. Photos or video showing exactly what the finished product should look like.

I showed him the footings needed to be wider. Two rows of block, mortared. Specific header sizes. Exact spacing between connection points. Shims between the pier top and the beam bottom in pressure-treated wood, because anything touching masonry needs to be pressure-treated.

Pro tip: when a contractor buys materials, have them send you a photo at the register. I caught him buying non-pressure-treated lumber and regular nails instead of galvanized. Ten minutes of attention saved weeks of rework.

The second round of photos came in. Still not mortared. The entryway lumber was still not pressure-treated. I held payment again. Third round finally matched the spec.

Was that contractor bad? No. He is actually one of the best I work with. He was juggling multiple jobs, communicating through a project manager who did not fully understand the spec, and working through people on his team who did not have my context. That is normal. That is what real construction looks like.

Your job is not to find perfect contractors. Your job is to set expectations so clearly that even imperfect contractors deliver the right result.

FAQ

Can I negotiate with a structural engineer on a cheaper plan?

Yes. Bring a well-thought-out alternative in writing, with a sketch if possible. The engineer’s liability is attached to the final stamp, so he will push back on anything unsafe. But within the safety envelope, he will usually work with you. If he refuses to even discuss alternatives, get a second engineer.

What should I do if the appraiser flags structural issues I did not see?

Get the appraiser’s written notes. Get a structural engineer to inspect the exact items flagged. Do not guess. The engineer’s letter is what unlocks the refi, so spend the money there before throwing money at a fix.

Can I do BRRRR on a house with known structural problems?

Yes, if the numbers support the full structural fix in your rehab budget. Price the fix into the acquisition. Do not assume you will figure it out later. Structural surprises are the most expensive kind.

Should I withhold all of a contractor’s payment if part of the work is wrong?

Withhold the portion tied to the wrong work. Pay for whatever is correct. The point is to incentivize the fix, not to be adversarial. Split the invoice into clear line items from the beginning so you can pay selectively.

Is DIY structural work ever a good idea?

Digging footings, yes. Pouring the concrete, maybe. Building load-bearing block piers and beams, only if you have the experience. Structural work failures are not cosmetic. They are houses falling down. Get a pro or get trained under one before you try it solo.