The API `floor_heat_loss` code is authoritative — confirmed by joining each single-BP cert's code to its independent `floors[].description` (which the gov register publishes alongside the code): code 1 ↔ "To external air" (exposed, 9/9) code 2 ↔ "To unheated space" (semi-exposed, 6/6) code 3 ↔ "(other premises below)" (partially htd, 9/9) code 6 ↔ "(another dwelling below)" (party, 176/176) code 7 ↔ "Solid"/"Suspended …" (ground, all) Code 3 was mis-mapped to "To unheated space" (semi-exposed) and, on mid-/top-floor flats, had its floor area zeroed entirely by the dwelling-level exposure heuristic. RdSAP 10 §3.12 (PDF p.25) classes a flat's floor over non-domestic "other premises … heated, but at different times" as "above a partially heated space" → the §5.14 (PDF p.47) constant U=0.7 W/m²K — distinct from semi-exposed (Table 20) and party (no loss). Fix: the mapper sets `is_above_partially_heated_space` on the floor=0 dimension for code 3 (string → "(other premises below)" for fidelity), and the heat-transmission step lets that per-BP lodgement override the flat suppression upward (mirroring the existing exposed / "another dwelling below" overrides). The cascade already routes is_above_partial → U=0.7. Re-pins golden cert 7536-3827: its Ext2 (bp3) lodges code 3, but the cert's lossy `floors[]` summary dropped that description, so a prior agent guessed "code 3 = ground" (U=1.12) and concluded the residual was an irreducible "register-rounding" artifact. It was this bug: Ext2 floor U 1.12 → 0.70, PE -6.1952 → -5.6414, CO2 -0.1639 → -0.1492 (both toward 0), SAP unchanged. Eval: 909 computed, 45.1% → 45.3% within 0.5, mean|err| 1.702 → 1.659, <1.0 59.5% → 60.2%. 13 code-3 certs improve (0380 +3.71 → -0.63, 0350 +7.82 → +0.83, 2610 +7.47 → -1.29); the few that overshoot were already failing and carry independent fabric bugs (9763's walls = 8 W/K for 60 m²). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
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| .devcontainer | ||
| .github/workflows | ||
| .idea | ||
| .vscode | ||
| applications | ||
| asset_list | ||
| backend | ||
| backlog | ||
| datatypes | ||
| deployment/terraform | ||
| docs | ||
| domain | ||
| epr_data_exports | ||
| etl | ||
| infrastructure | ||
| model_data/requirements | ||
| orchestration | ||
| recommendations | ||
| repositories | ||
| sap worksheets | ||
| scripts | ||
| sfr/principal_pitch | ||
| survey_report | ||
| tests | ||
| utilities | ||
| utils | ||
| .coveragerc | ||
| .dockerignore | ||
| .gitignore | ||
| __init__.py | ||
| ara_backend_design.md | ||
| BaseUtility.py | ||
| CLAUDE.md | ||
| conftest.py | ||
| CONTEXT.md | ||
| devcontainer.sh | ||
| Dockerfile.test | ||
| Dockerfile.test.dockerignore | ||
| Makefile | ||
| MEMORY.md | ||
| package-lock.json | ||
| package.json | ||
| pyproject.toml | ||
| pyrightconfig.json | ||
| pytest.ini | ||
| README.md | ||
| run_lambda_local.sh | ||
| serverless.yml | ||
| test.requirements.txt | ||
| tox.ini | ||
| UBIQUITOUS_LANGUAGE.md | ||
Model Repository
This repository contains the code pertaining to the development of the data science and machine learning products being utilised by Hestia.
The different folders in this repository relate to services that can be used independently, or can be imported and used as part of a larger application
Getting Started
Prerequisites
Dev Container Setup
This repo uses a Docker Compose-based dev container. The model-backend service joins a shared-dev Docker network so it can communicate with other local services (e.g. a frontend container) running on your machine.
VS Code users: The initializeCommand in devcontainer.json creates the shared-dev network automatically before the container starts. No manual step required — just open the repo and select Reopen in Container.
Non-VS Code / CI workflows: Run the following once before starting the container:
make dev-setup
This is idempotent and safe to re-run if the network already exists.
Folders
backend/
This folder contains the code for the fastapi backend service, which provides an interface to much of the functionality in this repository, for the frontend
model_data/
This folder contains related to the reading and preparation of assessment model data, including pulling out epc attributes
Testing
All tests can be run, against the configuration in pytest.ini running
pytest
This will run the complete panel of tests and report on coverage in the locations specified by the pytest.ini file.
To run tests in a specific service, e.g. inside of model_data, simply run
pytest --cov-config=model_data/.coveragerc --cov=model_data
This will produce the test results and coverage reports