---
title: Proof before you choose your next core platform | Arcast
description: Select your next core platform against a requirements framework built from real estate practice, then test it on your own data before you sign.
image: https://www.arcastgroup.com/hubfs/raw_assets/public/arcast-raw/re/images/og/platform-selection.jpg
---

[Skip to content](https://www.arcastgroup.com/re/platform-selection#main)

[![Arcast](https://www.arcastgroup.com/hs-fs/hubfs/raw_assets/public/arcast-raw/shared/img/arcast-logo-header.png?width=200&height=35&name=arcast-logo-header.png)](https://www.arcastgroup.com/)

- [Services](https://www.arcastgroup.com/our-services)
- [Real estate](https://www.arcastgroup.com/re)
- [Insights](https://www.arcastgroup.com/insights)
- [Case Studies](https://www.arcastgroup.com/insights/tag/case-study)
- [About us](https://www.arcastgroup.com/arcast-independent-experts)
- [Book a working session](https://www.arcastgroup.com/re/working-session)

Open main navigation

Your next core platform is about to be chosen on demos and a sales pitch.

# Proof before you choose your next core platform.

Requirements validated, vendors assessed without reseller bias, and proof on your own data before you sign.

[Start an Architecture Assessment](https://www.arcastgroup.com/re/platform-selection#book)[See what three weeks include](https://www.arcastgroup.com/re/architecture-assessment)

**No reseller agreement decides this.** Where a vertical platform is the right answer we implement it. Where a composed architecture is, we build it. The proof on your own data decides which.

## Does this sound familiar?

These are the bottlenecks we hear most often:

- The shortlist came from a sponsored analyst report.
- Every demo looks strong until your own process is modelled in it.
- The last selection took a year.
- The integration costs only came to light after the contract was signed.

## How we work

1. 1
   
   ### Requirements built from your processes and capabilities
   
   Built from real estate practice and weighted to your portfolio, before any supplier is in the room.
2. 2
   
   ### Shortlist and independent assessment
   
   We score the suppliers ourselves, and we resell none of them. You get what each one connects to, what it does not, and what closing that gap would cost you.
3. 3
   
   ### Proof before you sign
   
   A gated proof of concept on your own data, so the decision rests on your portfolio rather than a demo.

## Where this leads

You commit one stage at a time, each stage leaves you something you can use whether or not you go on, and nothing ties you to a platform we recommend.

### [Your operation on a unified architecture](https://www.arcastgroup.com/re/unified-architecture)

Assets, units, leases, tenants and contracts defined once. Your systems connected so the next tool is weeks of work, not a quarter. The core platform chosen on evidence from your own portfolio. Occupancy, arrears and valuation get one answer, and the integration quote stops being a reason to say no.

6 to 9 months to a running architecture, then a 12 to 24 month term underneath it.

1. [Architecture Assessment](https://www.arcastgroup.com/re/architecture-assessment) Start here3 weeks. Systems, integration debt, data model, shortlist.
2. Proof of conceptAn 8-week gated proof of concept on your shortlisted platform or target architecture, before you sign anything.
3. Build-outA composed architecture or a vertical platform, whichever the proof supports.
4. Managed ServicesWe run it under a 12 to 24 month term, if your team does not have the capacity.

[See what a unified operation looks like](https://www.arcastgroup.com/re/unified-architecture)

[Start an Architecture Assessment](https://www.arcastgroup.com/re/architecture-assessment)

## What we have done in real estate

Three engagements, one for each step of the ladder, and what each one settled.

- ### Agentic Readiness, for a European property software vendor
  
  Every new client was configured by hand, from knowledge in consultants' heads. In a few weeks we built a working agent against their live platform, using standards derived from their own past implementations. Their consultants judged the standard and output good enough to take over much of the work. They left with the agent, the evidence, and a rollout plan.
- ### Architecture Assessment, for a pan-European real estate organisation
  
  A core platform was about to be chosen with no picture of what it had to fit into. We designed the target architecture first, then scanned the market against it: an independent shortlist with a cost range per option, where quotes for the same scope differed by a factor of three. The board got a shortlist it could defend and the figures behind its business case.
- ### Agent Development, for a proptech platform
  
  Tenant and back-office agents on a live portfolio, connected to the property management and service ticket systems. Answers are benchmarked before release and monitored after, each agent sees only what the person asking may see, and GDPR and the AI Act are designed in. Tenants get answers at any hour; the team gets the exceptions and a record of every action.

Three starting points, one discipline: prove the output on real data before building the plumbing, keep what the existing systems can carry, and the same people from first session to handover.

Based in the Netherlands and built for European enterprises: data sovereignty, GDPR and AI Act compliance from day one.

## Start an Architecture Assessment

Three weeks, fixed scope and fixed price, platform shortlist included. Requirements, an independent shortlist and the plan for the proof of concept. Or start with a 30-minute working session.

Independent. We recommend what works, not what we sell.

First name Last name 

Work email Organisation

Website

 I agree to Arcast storing my details to respond to this request.

Start an Architecture Assessment

One reply, within a working day, from the person who would lead the engagement.

Thank you. We will be in touch within one working day.

Rather talk it through first? [Book a 30-minute introduction call](https://www.arcastgroup.com/re/introduction-call)

- [Services](https://www.arcastgroup.com/our-services)
- [Insights](https://www.arcastgroup.com/insights)
- [About us](https://www.arcastgroup.com/arcast-independent-experts)

- [Terms & Conditions](https://www.arcastgroup.com/hubfs/nl-digital-terms-en.pdf)
- [Privacy Policy](https://www.arcastgroup.com/privacy-policy)
- Cookie settings

[![Arcast home](https://www.arcastgroup.com/hs-fs/hubfs/raw_assets/public/arcast-raw/shared/img/arcast-logo-mono.png?width=125&height=110&name=arcast-logo-mono.png)](https://www.arcastgroup.com/)

- <https://twitter.com/arcastgroup>
- <https://www.linkedin.com/company/arcastgroup/>
- <https://www.facebook.com/arcastgroup>

Copyright © 2026, Arcast B.V.

```json
{
  "@context" : "https://schema.org",
  "@id" : "https://www.arcastgroup.com/#organization",
  "@type" : "Organization",
  "address" : {
    "@type" : "PostalAddress",
    "addressCountry" : "NL",
    "addressLocality" : "Amsterdam"
  },
  "areaServed" : {
    "@type" : "Place",
    "name" : "Europe"
  },
  "description" : "Digital Architects for AI-ready enterprises. Arcast unifies data stacks, implements platforms and deploys production AI agents for European enterprises, on the systems they already run.",
  "knowsAbout" : [ "Enterprise AI architecture", "AI agents", "System integration", "Real estate technology", "PropTech platform selection" ],
  "legalName" : "Arcast B.V.",
  "logo" : {
    "@type" : "ImageObject",
    "height" : 512,
    "url" : "//144817958.fs1.hubspotusercontent-eu1.net/hubfs/144817958/raw_assets/public/arcast-raw/shared/img/icon-512.png",
    "width" : 512
  },
  "name" : "Arcast",
  "sameAs" : [ "https://www.linkedin.com/company/arcastgroup/", "https://twitter.com/arcastgroup", "https://www.facebook.com/arcastgroup" ],
  "url" : "https://www.arcastgroup.com/"
}
```

```json
{
  "@context" : "https://schema.org",
  "@id" : "https://www.arcastgroup.com/#website",
  "@type" : "WebSite",
  "inLanguage" : "en-GB",
  "name" : "Arcast",
  "publisher" : {
    "@id" : "https://www.arcastgroup.com/#organization"
  },
  "url" : "https://www.arcastgroup.com/"
}
```

```json
{
  "@context" : "https://schema.org",
  "@id" : "https://www.arcastgroup.com/re/platform-selection#webpage",
  "@type" : "WebPage",
  "about" : {
    "@id" : "https://www.arcastgroup.com/#organization"
  },
  "breadcrumb" : {
    "@id" : "https://www.arcastgroup.com/re/platform-selection#breadcrumb"
  },
  "dateModified" : "2026-10-14",
  "description" : "Select your next core platform against a requirements framework built from real estate practice, then test it on your own data before you sign.",
  "inLanguage" : "en-GB",
  "isPartOf" : {
    "@id" : "https://www.arcastgroup.com/#website"
  },
  "name" : "Proof before you choose your next core platform | Arcast",
  "primaryImageOfPage" : {
    "@type" : "ImageObject",
    "height" : 630,
    "url" : "//144817958.fs1.hubspotusercontent-eu1.net/hubfs/144817958/raw_assets/public/arcast-raw/re/images/og/platform-selection.jpg",
    "width" : 1200
  },
  "publisher" : {
    "@id" : "https://www.arcastgroup.com/#organization"
  },
  "url" : "https://www.arcastgroup.com/re/platform-selection"
}
```

```json
{
  "@context" : "https://schema.org",
  "@id" : "https://www.arcastgroup.com/re/platform-selection#breadcrumb",
  "@type" : "BreadcrumbList",
  "itemListElement" : [ {
    "@type" : "ListItem",
    "item" : "https://www.arcastgroup.com/",
    "name" : "Arcast",
    "position" : 1
  }, {
    "@type" : "ListItem",
    "item" : "https://www.arcastgroup.com/re",
    "name" : "Real estate",
    "position" : 2
  }, {
    "@type" : "ListItem",
    "item" : "https://www.arcastgroup.com/re/platform-selection",
    "name" : "Platform selection",
    "position" : 3
  } ]
}
```