The verdict in three sentences
Custom property developer software runs in 2026 between 60 000 and 190 000 EUR depending on the number of programs managed and the depth of the buyer CRM. The value comes not from the software itself but from real-time control of unit inventory and reservations, which speeds up sales and reduces dormant units. Plan for 5 to 8 months of delivery and annual maintenance of 12 to 18 %.
What the budget covers
A developer runs a chain: marketing, reservation, financing, notary, closing, delivery. Each step needs a module and up-to-date data.
| Module | Scope | 2026 order of magnitude (EUR) |
|---|---|---|
| Price grid & unit inventory | Plans, statuses, shares | 15 000 - 40 000 |
| Buyer CRM | Prospects, options, follow-ups | 12 000 - 33 000 |
| Reservations & contracts | Preliminary contract, deposits | 11 000 - 28 000 |
| Notary & closing tracking | Meetings, documents, signatures | 9 000 - 24 000 |
| Fund calls & financing | Off-plan schedule, collections | 9 000 - 26 000 |
| Program reporting | Sell-through rate, margin, cash | 7 000 - 19 000 |
A marketing core (grid + inventory + CRM) starts around 60 000 EUR. Full multi-program management with fund calls and notary tracking reaches 170 000 to 190 000 EUR.
The ROI on sales pilotage
In development, every unit held longer than planned costs carrying finance. Fine-grained inventory control speeds up sell-through.
| Indicator | Spreadsheet management | Dedicated software |
|---|---|---|
| Real-time inventory visibility | No | Yes |
| Double-booking a unit | Real risk | Blocked |
| Buyer follow-up delay | 2 - 5 days | Automatic |
| Notary document tracking | Manual | Alerts & checklist |
| Sell-through rate / month | Baseline | +10 to +20 % |
| Price-grid error | Frequent | Controlled |
On a 40-unit program at 250 000 EUR each, accelerating sell-through by two months means tens of thousands of euros of carrying cost saved and cash collected earlier.
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Mini case study
Sophie runs a development company in Toulouse that launches 3 programs a year, roughly 120 units. She drops shared spreadsheets for custom software at 110 000 EUR plus 15 000 EUR/year of maintenance. By eliminating double bookings and automating follow-ups, the sell-through rate gains 12 %, and two units per program sell one month earlier. On a program turnover of 30 M EUR, earlier collection and avoided carrying cost exceed 150 000 EUR in the first year alone.
FAQ
Can we start with a single program? Yes. Many developers roll out the grid + inventory + CRM core on a pilot program (60 000 - 75 000 EUR) before generalizing.
Does the software handle off-plan sales and fund calls? Yes, the off-plan schedule (foundations complete, weathertight, etc.) and fund calls can be automated with reminders.
Can we connect our accounting? Yes, collections and fund calls export to your ERP or accounting software. Budget 7 000 to 18 000 EUR per interface.
What is the implementation timeline? Between 5 and 8 months for a full scope, plus migration of ongoing programs.
Do we need a buyer portal? It is a strong plus: reservation tracking, documents, works progress. Budget 14 000 to 28 000 EUR extra depending on features.
Let's scope your project. Share your annual program count, unit volume and notary needs: we frame the scope and a budget between 60 000 and 190 000 EUR. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
