Comprent

The platform generates compliance tasks automatically when a property is added. Gas Safety, EPC, EICR, Information Sheet service, deposit protection, Awaab's Law timers, and more. Each task is tracked against its statutory deadline, with evidence upload and a full audit trail exportable as a PDF.

Document generation covers the four document types every landlord now needs: Periodic Tenancy Agreements compliant with the new Act, Proof of Service for the mandatory Information Sheet, Section 13 rent increase notices, and Section 8 possession notices across all 13 statutory grounds with legally accurate notice periods.

Next.js 16 App Router, Supabase with Row Level Security across 10 tables, Stripe subscription billing with webhook lifecycle management, Resend transactional email, and Gemini AI with real-time streaming. All deployed to Vercel with a daily certificate expiry cron.

The AI assistant uses Gemini 3.1 Flash Lite with live portfolio context injected per query. The model knows which properties are overdue, which certificates expire soon, and whether a rent increase is eligible under the 12-month statutory rule. Responses stream in real time. Follow-up question chips are generated by a second Gemini call after each response completes.

Plan gating, trial expiry enforcement, single-use beta invite codes with burn-on-signup, and a full read-only mode for expired accounts are all implemented at the server action layer. Nothing is enforced only on the client.

The design system pairs a small set of Radix primitives, dialog, dropdown, select, tabs, toast, for accessible interaction behaviour with fully custom Tailwind styling on top. Every visual surface, from the compliance score ring to the streaming chat interface, is a bespoke build with a deliberately editorial aesthetic: monochrome base, sage green accent, serif headlines, and a strict grid.

The AI assistant UI mirrors the interaction patterns of modern chat interfaces: collapsible sidebar, auto-resizing textarea, streaming response with cursor blink, follow-up chips, while staying within the Comprent design language rather than defaulting to generic chat chrome.

Comprent launched to beta in May 2026 with a structured invite code program. Solo is free, Portfolio 9/mo, Pro 29/mo. The letting agent tier at Pro supports unlimited properties, white-label document generation, and a multi-client management dashboard that groups properties by landlord client with per-client compliance scores.

This is a complete solo founder build: product strategy, architecture, engineering, design, compliance research, copywriting, and go-to-market. Eight weeks.