Model/packages/domain
Khalim Conn-Kowlessar 344a9c9d5e u_floor: route age A,B unknowns to suspended-timber branch (Table 19 fn 1)
RdSAP10 §5.12 Table 19 footnote (1): when floor_construction is unknown,
age bands A and B default to suspended timber, not solid. Previously
u_floor always used the BS EN ISO 13370 solid-floor formula, which
under-counted ~14% on pre-1929 dwellings.

Elmhurst worksheet U985-0001-000490 Main Dwelling (A=14.85, P=7.42,
w=0.400, age B) records floor U=0.71 W/m²K — the suspended-floor formula
on §5.12 page 46 reproduces this exactly. The solid branch returned 0.66.

Description prefixes "Solid, ..." / "Suspended, ..." take precedence over
the age-band default since they're explicit assessor observations.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-20 13:17:35 +00:00
..
src/domain u_floor: route age A,B unknowns to suspended-timber branch (Table 19 fn 1) 2026-05-20 13:17:35 +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

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/.