PRISM Consent Gap Score
Detect potential unauthorised property works and get actionable remediation paths — retrospective consent, indemnity insurance, or price renegotiation. Built for conveyancers and property professionals.
6-Signal Scoring + Remediation Pathfinder
Cross-references EPC time-series, planning records, heritage designations, flood zones, and Land Registry data.
Detects physical changes by comparing multiple EPC certificates over time. Flags extensions, conversions, and demolitions.
Cross-references detected changes against planning applications from 425+ councils. Identifies missing or mismatched consent.
Listed buildings, conservation areas, Article 4 directions, and EA flood zones — each constraining permitted development rights.
8 automated checks flag EPC outliers, measurement errors, and coverage gaps before you rely on the score.
Remediation Pathfinder
When the score exceeds Moderate, PRISM generates three structured resolution paths with cost estimates, timelines, and enforcement analysis.
Route selection (householder, full, LBC, CLEUD), application fees, professional costs, timeline, and exchange delay assessment.
Premium estimates by category, works age, conditions and exclusions. Flags when indemnity is inappropriate (listed buildings, Flood Zone 3).
Factor-based discount calculation with comparable clean properties within 0.5km. Reference price, suggested discount, and revised offer.
Start with a 7-day free trial
Full access to PRISM scoring, remediation pathfinder, and API. Cancel anytime.
PRISM Access Active
7-day free trial, then £29/month
- ✓ Unlimited PRISM scores
- ✓ API access (hd_prism_ key)
- ✓ Remediation pathfinder
- ✓ Dashboard access
7-day free trial, then £290/year
- ✓ Everything in Monthly
- ✓ 2 months free
- ✓ Priority support
- ✓ Early feature access
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