Loft ADU on a 7,200 sq ft demo lot — aerial
Accessory dwelling units · ADU 04
Loft ADU
Small footprint, height instead of width. Good on a tight lot.
Site data
- Lot
- 7,200 sq ft
- Existing footprint
- 1,439 sq ft
- This proposal
- 360 sq ft
- Building coverage
- 25.0%
- Front / side / rear
- 97.0′ / 20.0′ / 5.0′
- Scale
- 1″ = 20′
measured off the compiled model · no engine diagnostics · sizes are placeholders until this is drawn on your lot
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5 sheets, from one model
These are not separate drawings kept in step by hand. They are projections of the same model, so a change to the model changes all of them at once.
Sheet A-001 — Site plan
Why this passes — and what sends one back
- Setbacks measured to the new edge, not to the house — 20.0′ to the nearer side line here.
- The scale is written down (1″ = 20′), not left to be inferred from the page size.
- North arrow on the sheet.
- Existing dashed, proposed solid. This is the first thing read at the counter, and getting it backwards is a refusal on its own.
- The coverage arithmetic is shown, not just its result — 1,439 sq ft existing + 360 sq ft proposed over 7,200 sq ft of lot.
What sends this one back
Traced at the eave, judged at the wall
Coverage and setbacks are measured at the foundation, but a satellite sees the roof — two to three feet bigger on every side. The incumbents’ own support replies ask the customer for the eave overhang after the drawing bounces; this sheet asks first.
What the sky can’t see — you add these
- The eave overhang, so the roof trace can be pulled back to the wall
- Recorded easements the unit must clear
- Where the sewer lateral runs — the connection trench crosses the yard somewhere
provide them and they go on the sheet · invented lines never do
Same lot, 6 ways
Every adu in this category is drawn on the identical lot, so the coverage numbers on the cards can be read against each other.
What this is not
This page is a demonstration our engine drew — not a permit that was submitted and not a drawing that was approved. Structural calculations and Title 24 energy compliance have to be signed by a licensed engineer or a certified analyst: we hand those off and we do not stamp them. Decks and small wood structures mostly fall inside the prescriptive tables and need no stamp at all, which is why they are the cleanest category here.
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