# PropertySurvey Pro™ — RICS & Snagging AI Specification

This document details the specialized condition rating matrices, schedule of dilapidations standards, and building pathology modules configured in PropertySurvey Pro™.

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## 1. RICS Level 1, 2, 3 Condition Frameworks
The application's core structural survey engine is strictly mapped to the **Royal Institution of Chartered Surveyors (RICS) Home Survey Standard**:

### A. RICS Condition Ratings
- **Condition Rating 1 (Green)**: No repair is currently needed. The structural element functions as designed. Normal maintenance is sufficient.
- **Condition Rating 2 (Amber)**: Defects that need repairing or replacing, but are not considered urgent or serious. The surveyor flags these for medium-term maintenance.
- **Condition Rating 3 (Red)**: Serious defects that need urgent repair, replacement, or investigation. These present an active threat to structural integrity or safety (e.g., severe dry rot, timber beetle infestation, active subsidence).
- **NI (Not Inspected)**: Explicitly logs visual obstructions or restricted access (e.g. locked loft hatches, high rooflines).

### B. Structural Element Mapping Tree
- **Exterior**: Chimney stacks, roof coverings, rainwater goods, main walls, windows, external doors, joinery.
- **Interior**: Roof structure, ceilings, physical walls, fireplaces, chimney breasts, floors, internal joinery, basement cellar zones.
- **Services**: Electricity, gas, water, heating, drainage, mechanical ventilation.
- **Outbuildings & Grounds**: Garages, boundaries, retaining walls, common shared accessways.

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## 2. Schedule of Dilapidations & Snagging
Built explicitly for commercial and landlord-tenant compliance inspections.

### A. Scott Schedule Structuring
The database is normalized to support seven-column dilapidations tracking:
1. **Item ID / Reference**: Room and coordinate code.
2. **Defect Clause**: Detailed pathology description.
3. **RICS/Statute Reference**: e.g., Breach of covenant, Section 18 Valuation act.
4. **Remedial Action Required**: Mandated scope of work.
5. **Cost Estimate**: Itemized pricing fields supporting custom local currencies (GBP, USD, AUD, CAD, EUR, etc.).
6. **Landlord Comments**: Landlord response portal.
7. **Tenant Comments**: Tenant rebuttal portal.

### B. Drag-and-Drop Snagging Severity
- **Critical Safety Hazard**: Violates local safety regulations (e.g. HHSRS, Defective Premises Act 1972). Actions marked for immediate contractor notification.
- **Major Cosmetic/Functional Defect**: Compromises immediate tenant usage (e.g. non-functional HVAC zones, water leaks).
- **Minor / Visual Snag**: Aesthetic detailing or minor adjustments.

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## 3. Specialized Regulatory & Energy Audits
- **PAS 2035 Retrofitting Compliance**: Includes dedicated thermal boundary audits, ventilation calculation checks (e.g. trickle vent sizing vs room volume), and photo geofenced proof for government energy grants (ECO4).
- **Asbestos & Lead Risk Registries**: Formulates localized hazard registers mapping material descriptions, friability indices, and sample reference IDs directly onto dynamic floorplans.
- **Timber Decay Assessment**: Visual selector triggers active vs inactive woodworm indices and damp-decay classification (wet rot vs dry rot *Serpula lacrymans*).

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## 4. Native Device & System Configuration
- **Capacitor Storage Caching**: Synchronizes structural datasets securely to Firestore.
- **Dynamic Floorplan Canvas**: Natively processes pixel coordinates to output drag-and-drop defect indicators directly onto client-provided floorplans in client-ready PDFs.
- **Parent Brand Site**: [https://prosurvey.app](https://prosurvey.app)
- **Specialist Site**: [https://propertysurvey.pro](https://propertysurvey.pro)