Audits
Independent audits of the LDD by various LLMs. To generate a new audit, copy this prompt to your LLM.
You are conducting an LDD audit of a custom barndominium residential project in Hockessin, New Castle County, Delaware. AHJ is the New Castle County Department of Land Use. Adopted codes: 2024 IBC + 2024 IRC (effective Jan 1, 2026), 2021 IPC/IMC/IFGC, 2024 IECC + ASHRAE 90.1-2022. IECC climate zone 4A (Mixed-Humid). **FIRST, identify yourself precisely.** Open your response with: **LLM:** [full model name and variant — e.g., "ChatGPT 5.5 Extra High", "Claude Sonnet 4", "Gemini 2.5 Pro"] **On behalf of:** [the human running you — e.g., "Peter Shin"] **Date:** [today's date in YYYY-MM-DD] **Time:** [HH:MM with timezone — e.g., "20:19 ET"] **LDD version audited:** [the version number shown in the sidebar next to "LDD" — e.g., "v1.0"] --- Read the documentation at: https://four-bay-26-v2.pages.dev Read the LDD Bible directly (30 Locked Design Documents). Pay special attention to the master strategies (LDD-29 Gym, LDD-30 Mech Core) and any LDDs marked yellow (pending review) or amber (needs update). Do not rely on prior audits as the finding base — read the LDDs themselves. If helpful, dispatch read-only research passes for: structure/code/civil, MEP/building science, and program/budget/operations. **Output format** (after your identity block): **Score:** N.N / 10 **One-line takeaway:** [single sentence — what's the bottom line] **Pro reaction:** [one punchy sentence — what's genuinely good] **Con reaction:** [one punchy sentence — what's genuinely concerning] **What is strong** (3–5 bullets): - [LDD reference] — [why it's strong] **Top holes** (numbered, with action callouts): 1. [Issue title] [Detail paragraph explaining the gap] **Action:** [specific recommended next step] 2. [Issue title] ... **Score movement** (how to climb the score): - N.N → N.N: [what unlocks this jump] - N.N → N.N: [what unlocks the next jump] - N.N → N.N+: [what gets to the top tier] **Research anchors** (external sources you cited): - [URL] — [relevance] **Bottom line:** [2–3 sentences wrapping the audit]
The design intent is strong, but the project control layer has drifted enough that exports, PM pages, and visual evidence can no longer be treated as one source of truth.
LDD-29 and LDD-30 protect the gym and mechanical core from being value-engineered into unrelated parts.
The project has multiple competing truths, and a contractor will build from whichever one is easiest to price.
An ambitious and highly organized master plan that is currently undermined by fatal geometric clashes in the mechanical core and building science gaps in the PEMB envelope.
Distributing the mechanical core into three zones (LDD-30) to separate wet utilities, high-voltage, and batteries is a masterstroke of defensive engineering.
Mandating "dumb" analog equipment (no smart controls) for a highly complex dual-source hydronic system will result in warring heating stages and short-cycling.
Excellent design-intent discipline; still not hard enough as a permit, bid, life-safety, and commissioning package.
A house-machine with a basketball soul, much more interesting than a dressed-up barn.
A GC could still price the poetry and quietly build the warehouse version.
Above-average LDD discipline. Structural strategy clean; constraint-framework strong; AHJ/code-basis still missing.
The structure finally feels like a real skeleton instead of a Pinterest wish with steel nearby.
The AHJ/code-basis gap is still the grown-up at the party asking where the permit drawings are.
Archived
Earlier audits from prior cycles. Kept for history; the active list above reflects the current state of the LDD set.
Decision discipline strong; testability above average; AHJ, fire separation, egress, bid-alternate docs still gaps.
The design has actual rules, which is rare and honestly kind of refreshing.
Without commissioning and bid alternates, everyone is still doing arithmetic with vibes.
Five gaps Peter hasn't documented + product recommendations + one sleeper concern.
It catches the unsexy future-owner stuff that can save real money later.
Some product picks are doing a little too much confidence cosplay before specs are signed.
Building science + acoustic focus. Delaware climate, PEMB envelope behavior.
The humidity and acoustic lens is exactly where metal buildings stop being cute and start being buildings.
The punch lands only if the dehumidification and envelope details become specs, not just warnings.