Two very different models for the same market
Propp and Assesr both serve UK property developers looking for finance, but they take fundamentally different approaches. Propp is an FCA-authorised credit broker with a comparison website — you browse rates for free, then their human brokers take over to negotiate and manage your deal. Assesr is an AI-powered marketplace — you upload documents, the AI generates an institutional-grade credit paper, and it's matched to specialist lenders automatically.
The fundamental difference: Propp is a traditional brokerage that happens to have a website. Assesr is a technology platform that replaces the manual broker process entirely.
What Propp does well
Propp has built a credible position in UK property finance since launching, and they do several things well:
- FCA-authorised credit broker: Propp holds FCA authorisation (914408), giving regulated status and compliance infrastructure that some competitors lack.
- Broad product coverage: Covers bridging, development finance, commercial mortgages, buy-to-let, auction finance, and secured loans — not just development finance.
- Free rate comparison: The comparison tool lets you see indicative rates without sharing personal details — useful for initial research.
- Deal Optimiser: Submit your deal and Propp distributes it to their lender panel, with bespoke quotes returned within one working day. Claims average savings of £10,475 per deal.
- Propp IQ educational content: Strong library of guides, webinars, case studies, and videos covering property investment strategy and finance options.
- Free Hometrack valuations: Portfolio valuation tool includes free automated valuations (normally £40 each).
- Practitioner credibility: Founders and staff are property investors themselves, with 60+ years combined experience.
Where Propp falls short
Despite the technology veneer, Propp's core model is traditional brokering — and that creates limitations:
- No AI features whatsoever: No document extraction, no automated credit paper generation, no algorithmic risk assessment. Every deal is handled manually by a human broker.
- Broker fees on top of free comparison: The comparison tool is free, but Propp charges £500 to 1.5% of the loan amount as a broker fee when you proceed. On a £3M deal, that's up to £45,000.
- Manual process behind the scenes: The Deal Optimiser sounds automated, but it's actually a human broker distributing your deal to lenders and negotiating manually. Speed is capped by human capacity.
- No standardised output: Each broker writes proposals differently — no consistent credit paper format that lenders can compare across deals.
- Not a broker tool: Propp is the broker, not a platform for other brokers. No B2B model, no API, no white-labelling.
- Scaling limitations: At ~500 clients per year on £100M lending, growth requires hiring more brokers. Technology-driven platforms like Assesr can scale without proportional headcount increases.
- No sensitivity analysis or stress testing: Propp doesn't automatically model cost overruns, sales price drops, or timeline extensions — the analysis depends entirely on the individual broker's approach.
Head-to-head comparison
Here's how the two platforms compare across the features that matter most for development finance:
- Credit paper generation: Assesr generates a 10-section credit paper in 60 seconds from uploaded documents. Propp's brokers write proposals manually — quality and speed depend on the individual.
- Document handling: Assesr's AI extracts data from PDFs, images, and spreadsheets automatically. Propp requires you to provide information to the broker, who enters it manually.
- Lender matching: Assesr algorithmically matches deals to 50+ specialist lenders based on current mandates. Propp distributes to their panel via the Deal Optimiser (manual process).
- Speed: Assesr delivers lender offers in an average of 4.2 hours. Propp's Deal Optimiser delivers bespoke quotes the next working day, with the full process taking 1–4 weeks.
- Cost: Assesr charges 0.5% on drawdown only (£15,000 on a £3M deal). Propp charges £500 to 1.5% (up to £45,000 on a £3M deal).
- Direct access: Borrowers submit directly on Assesr without a broker. On Propp, you submit an enquiry but a broker handles everything from there.
- Risk assessment: Assesr includes automated sensitivity analysis, stress testing, and A–E risk grading. Propp has no equivalent automated analysis.
- Comparable benchmarking: Assesr pulls comparable property sales data to validate GDV assumptions. Propp relies on the broker's manual research.
The cost difference on a typical deal
On a £3M development finance deal:
- Propp: £500 minimum up to 1.5% = £15,000–£45,000 broker fee, plus the time cost of 1–4 weeks for the manual process.
- Assesr: £15,000 (0.5% on drawdown only). Nothing upfront, nothing if the deal falls through. Credit paper generated in 60 seconds, lender offers in hours.
Even at Propp's minimum broker fee, Assesr delivers a more comprehensive service — AI-generated credit papers, automated lender matching, sensitivity analysis, and risk grading — at a comparable or lower price point, and dramatically faster.
Who should use which
Use Propp if you want a human broker to handle everything for you and you value FCA-regulated advice. Propp's educational content is also excellent if you're new to property investment and want guided learning alongside your finance search. Their broad product coverage (bridging, BTL, commercial, auction) is useful if you need multiple finance types beyond development finance.
Use Assesr if you want the fastest, most cost-effective route from documents to lender offers. If you're an experienced developer who knows their deal and wants institutional-grade analysis without paying broker fees of 1–2%, Assesr delivers better analysis (AI credit papers, sensitivity testing, risk grading) at a quarter of the cost. If you're a broker or professional referrer, Assesr's partner programme pays 0.10–0.18% on every deal that draws down.
The core question is whether you want a human broker who uses a comparison website, or an AI platform that generates the credit paper and matches lenders automatically. For development finance specifically, the technology approach delivers better, faster, cheaper results.