New construction vs. restoration: why your takeoff must read the scope differently

A set of drawings does not tell you, on its own, how much of the building is in scope. That's a decision — and it's the one that most often makes a takeoff wildly wrong.

Two reading modes

New construction is ground-up: take off everything shown, across every trade, because the whole structure is being built.

Restoration is a repair: only the affected, demolished, or replaced areas are in scope. Read a restoration set the way you'd read a new build and you'll take off the entire house — including rooms marked existing to remain.

Scope by area, not by trade

Here's the rule that keeps restoration honest: scope by area, never by trade. The decision is which rooms are in — not which trades. Within a room that's being repaired, you keep every assembly being rebuilt there: framing, drywall, insulation, trim, cabinetry, flooring, paint, and MEP. Dropping the finishes of an in-scope room — the cabinets in a remodeled kitchen, the trim in a rebuilt bath — is just as costly a miss as taking off the whole building.

What to read on the drawings

• Demo plans and scope-of-work notes
• Hatching, clouding, or shading that marks affected areas
• Callouts: (E), existing to remain, N.I.C., no work, phase notes

Everything marked new, replaced, repaired, or inside the affected boundary is in. Everything else is out.

When the scope isn't clear

If the drawings don't clearly delineate the repair boundary, the safe move is to take off only what's explicitly marked as affected — and say so. Assuming the whole building is in scope is never the safe default on a restoration job.

TrueTakeoff makes this an explicit choice: set a project to Restoration and the AI reads the set as a repair scope, not a ground-up build.