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Khalim Conn-Kowlessar 2fd0fe1c08 §3 exact conformance: non-RR LINE_31 + LINE_36 match Elmhurst worksheets 
LINE_31 (total external element area) = Σ_parts (gross_wall + roof +
floor). Window and door areas cancel in the net-wall expansion, so LINE_31
is independent of the window/door split. This lets us assert the exact
Elmhurst worksheet (31) for the two non-RR fixtures (000474, 000490)
without needing window-area input data.

LINE_36 = y × LINE_31 follows for free. Both 000474 and 000490 use age
band B throughout (y = 0.15), giving:
  000474: 0.15 × 153.39 = 23.0085
  000490: 0.15 × 164.85 = 24.7275

The per-storey-perimeter fix (e6c768c3) was the prerequisite; without it,
upper storeys with a smaller perimeter than the ground floor were
over-counted (e.g. 000474 Main: 7.07 m ground vs 5.27 m first storey).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-20 12:47:01 +00:00
..
src/domain §3 exact conformance: non-RR LINE_31 + LINE_36 match Elmhurst worksheets 2026-05-20 12:47:01 +00:00
pyproject.toml slice 13: to_rows(properties) returns pd.DataFrame 2026-05-16 16:43:28 +00:00
README.md added potential file scaffolding: 2026-05-15 10:56:53 +00:00

README.md

domna-domain

Shared domain types — Property, Properties, BaselinePerformance, Plan, PlanPhase, Scenario, ScenarioPhase, ScenarioSnapshot, Recommendation, OptimisedPackage, EpcPropertyData, etc.

Boundary: types only. No persistence, no IO, no business logic. Other packages and services depend on domna-domain; this package depends on nothing internal.

Domain definitions live in ../../CONTEXT.md. New types added here must match the glossary terms.

Layout

src/domain/
├── __init__.py
├── property.py             # Property, Properties, PropertyIdentity
├── site_notes.py
├── landlord_overrides.py
├── baseline_performance.py # lodged + effective pair (ADR-0004)
├── plan.py                 # Plan, PlanPhase, OptimisedPackage
├── scenario.py             # Scenario, ScenarioPhase, ScenarioSnapshot (ADR-0005)
├── recommendation.py
├── geospatial.py
├── solar.py
├── anomaly_flags.py
└── ml/
    ├── __init__.py
    ├── transform.py        # EpcMlTransform (versioned per §8.3)
    └── schema.py

When datatypes/epc/domain/ folds in, the EPC schema types move under src/domain/epc/.