Measure-up the existing house

Why this is needed

Even a fully detached DADU usually shares at least one thing with the primary house — a water service, a sewer lateral, a driveway, or an electrical service. PP&D wants to see how the new unit ties into the existing infrastructure, and that only works from accurate as-builts.

What the deliverable contains

• Existing house footprint, accurate to ±2"
• Locations of existing water, sewer, gas, and electrical service entries
• Driveway and curb-cut locations
• Any existing accessory structures (garage, shed) staying or being removed
• Existing trees ≥12" DBH if they're not already on the survey

Two ways to do it

1. Designer measures. If you've already picked a designer, this is part of their schematic-design scope. Adds ~$1,500.
2. Independent measure-up service. A drafter measures and produces the drawings; you hand them to whichever designer you hire. $800-$1,500. Useful if you're still interviewing.