Why Arrowsmith
Every other property platform helps professionals look things up. Arrowsmith gives them the answer, sourced and dated.
Property evidence, ready for the decisions that need to hold up.
Other tools in the UK property stack help you find evidence. Arrowsmith reads across it, reconciles it, and returns one attributed answer. Every source named. Every date stated. Built for the decisions that need to defend themselves.
Today
The workflow is fragmented. The evidence is still assembled by hand.
A senior surveyor producing a single valuation today moves between seven tools. CoStar for comparables. ARGUS for the cash-flow model. Landmark for environmental searches. Search Acumen for the legal due diligence. MRI for the asset and lease record. LandInsight for planning intelligence. PropertyData for market analytics.
Each tool returns documents. Each document needs to be opened, read, interpreted, and reconciled against the others. The output is a Word doc full of screenshots. The audit trail is whoever remembers what they pulled.
Every tool is doing its job. The job nobody is doing is the one that matters: turning the evidence into the answer.
The seven-tool stack
Seven systems. One human. Hours of manual assembly per instruction.
The shift
Arrowsmith does not return documents. It reads them.
One question. One governed answer. Every source attributed.
When you ask about a borrower’s financial position, Arrowsmith answers from inside the company accounts. When you ask about a planning consent, it answers from inside the decision notice. When you ask about charges on a title, it answers from inside the registered document itself. You get the answer, the source document, and the date. Not a stack of PDFs to read through.
With Arrowsmith
One governed intelligence layer.
Five capabilities. One platform. Same answer in every channel your team uses.
Capability 01
Reads inside documents
Planning decisions. Company accounts. Registered title documents. EPC certificates. Flood and environmental reports. Arrowsmith reads inside each one and returns the answer from inside the document itself.
Capability 02
Returns governed answers
Covenant strength. Charges affecting value. MEES compliance. Flood risk. Comparable evidence. Planning risk. The answer to the question, not the file to read.
Capability 03
Every source attributed
Source dataset, source document, and date attached to every answer. Audit-ready by default. The audit chain is not a feature you turn on; it is how the platform works.
Capability 04
Delivered where teams already work
Microsoft Teams. Slack. The Arrowsmith dashboard. The API. Same agents, same governance, same answer. Adoption is not a programme; it is a question typed into the channel.
Capability 05
Triggers operational workflows
The answer is the start, not the end. Arrowsmith triggers tasks in your operational stack: CRM updates, project tasks, follow-up assignments. Evidence becomes operational action.
The category distinction
Others provide property data. Arrowsmith provides attributed property intelligence.
Others help professionals find evidence. Arrowsmith helps them make decisions.
How Arrowsmith sits in the stack
The architectural shift. The category-by-category position.
The category Arrowsmith competes in is not retrieval. It is reasoning. Arrowsmith is not a replacement for the platforms your team already uses. It is the layer above them that turns their data into one attributed answer.
The architectural shift
Positioning
The category Arrowsmith competes in is not retrieval. It is reasoning.
Each platform plotted on what it returns and how broadly it reasons.
Plotted against publicly available product materials, reviewed 17 May 2026.
The category-by-category position
Each category in the stack continues to do what it does well. Arrowsmith combines what no single category combines in one platform: cross-source UK evidence reading, per-answer attribution, official-data grounding, workflow-native delivery, and enterprise deployment.
Row 01
Data incumbents
CoStar, ARGUS, MRI
What they do well
Historical transactions, rental and yield benchmarks, cash-flow valuation modelling, asset and lease management at portfolio scale. MRI and Yardi both publicly market AI lease abstraction with source-linked outputs.
What Arrowsmith combines
Authoritative UK Government data at the moment of the question, reading across nineteen sources, with every answer reconciled and attributed.
Row 02
Workflow specialists with real AI
Search Acumen, Landmark
What they do well
Legal due diligence and environmental search workflows, increasingly with AI summarisation inside the workflow itself.
What Arrowsmith combines
One reasoning layer across legal, environmental, planning, financial, and title evidence. Not one AI per workflow; one governed answer across them.
Row 03
Workflow specialists with retrieval AI
LandInsight, PropertyData
What they do well
Planning intelligence and market analytics surfaced through clean retrieval and developer-friendly APIs.
What Arrowsmith combines
Cross-workflow reasoning rather than single-workflow retrieval. The answer is reconciled across sources, not returned from one.
Row 04
Horizontal AI platforms
Microsoft Copilot, generic LLMs
What they do well
General reasoning, drafting, summarisation across any domain.
What Arrowsmith combines
Three years of platform investment already done. The execution layer underneath is proven inside BMW, the UK Government AI programme, and the UK's largest independent construction data platform.
Competitive assessment based on publicly available product materials reviewed on 17 May 2026.
What Arrowsmith is not
The honest answer to the honest question.
Arrowsmith is the governed intelligence layer for UK property evidence. It is not a replacement for everything else in the stack.
- 01
Arrowsmith does not maintain a comparables database. CoStar does. Comparable market data is in the 2027 roadmap as a separate layer.
- 02
Arrowsmith does not model cash flows. ARGUS does. Arrowsmith feeds attributed inputs into the models your team already runs.
- 03
Arrowsmith does not replace your asset and lease management system. MRI does that. Arrowsmith reads across it and the rest of the stack to return one answer.
- 04
Arrowsmith is the layer above the stack. The stack continues to do what it does. Arrowsmith turns its outputs into the answer.
The next step
See it return an answer in under two minutes.
Live demo. Real UK property evidence. Sourced and dated.