Now, the house was gutted. The structural engineer had flagged a load-bearing wall that wasn’t on the original plans. The contractor quit after a support beam cracked a hairline fracture across the master bedroom’s future floor. And the Whitmores were suing for “professional negligence.”

“We didn’t want perfect. We wanted safe. Come see us at the site tomorrow. Bring the laptop.”

Mara had trusted it. Big mistake.

Mara pulled up the original scan again. Then she did something she’d never done before: she overlaid a point cloud from a new LiDAR survey of the actual house, as it stood today, cracks and all. Keyplan 3D wasn’t built for this. The software screamed error messages— non-planar surface detected, component intersection failure —but she forced it. Layer by layer, she manually pinned the digital second floor to the messy, sinking, century-old reality below.

Her phone buzzed. A text from Leo, the new contractor: “Got the laser level on the second floor. Something’s wrong with your model. The west wall is 4 inches out of plumb. Did you account for foundation settling?”

Then she drafted a confession. Not to the court—to the Whitmores. I built a perfect second floor on a perfect screen. But your house was never perfect. I’m sorry I forgot that.

She opened the asset properties. There it was: Source: AI-generated reconstruction, 2021. No survey. No site visit. Just an algorithm hallucinating joist spans from a fuzzy scan of yellowed vellum. She’d built a castle on digital quicksand.

But the house was screaming otherwise.

The west wall now tapered. The nook lost six inches of headroom. The storm closet moved to the stairwell landing. It wasn’t what the Whitmores had wept over. But it would stand.