The verdict in three sentences
In 2026, a custom property-developer platform costs between 60,000 and 160,000 EUR, an investment justified by the complexity of programs, units and deeds. The real issue is not management: it is the speed of commercialization, because every month of cash tied up in a program is expensive. Custom is unavoidable because no market tool finely covers the triptych of program, reservation and notarial deed.
Why custom dominates in development
Property development has its own flows: structuring, per-unit price grid, reservations, deposits, drawdowns, deeds. Few standard tools cover it all, hence the weight of custom. 2026 order of magnitude.
| Criterion | Assembled standard tools | Kolonell custom |
|---|---|---|
| Year 1 cost | 20,000 - 50,000 EUR | 60,000 - 160,000 EUR |
| Recurring cost/year | 20,000 - 50,000 EUR | 10,000 - 26,000 EUR |
| Time to deploy | 1 - 2 months | 4 - 8 months |
| Unit tracking and price grid | Fragmented | Unified, real time |
| Reservations and deeds | Manual/spreadsheet | Automated |
| Accounting integration | Partial | Complete |
| Program dashboard | Improvised | Native |
Over three years, a tool assembly at 35,000 EUR/year costs 105,000 EUR without ever unifying data. Custom at 110,000 EUR plus 18,000 EUR/year reaches 146,000 EUR but gives a single program view, from the first reserved unit to the signed deed.
Sales tracking and commercialization speed
Value is measured in the delay between commercial launch and unit sell-through. Here are the quantified levers of a well-designed program tool.
| Lever | 2026 impact (order of magnitude) |
|---|---|
| Dynamic per-unit price grid | +2 to +5% average price |
| Real-time reservation tracking | -3 to -6 weeks of commercialization |
| Automatic reserver follow-up | -20 to -35% cancellations |
| Drawdown management | Secured cash flow |
| Notarial deed reconciliation | -5 to -10 days per deed |
| Multi-program dashboard | Fast arbitrage decision |
On a 40-unit program at 260,000 EUR, cutting 5 weeks of commercialization frees cash earlier and lowers carrying cost, often figured at tens of thousands of euros per program.
Reservations, deeds and accounting integrated
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A developer platform links the reservation contract, deposit, drawdowns and notarial deed into a single flow, synced with accounting. No more parallel spreadsheets: each unit has a verifiable status, each payment is reconciled, each program has its dashboard.
Mini case study
Claire is program director at a regional developer in Lille, 5 active programs, 210 units/year, 245,000 EUR average price. By cutting average commercialization time by 5 weeks and cancellations by 30%, she accelerates payments and secures about 14 additional units actually deeded per year. On a 9% margin, that represents roughly 308,000 EUR/year secured. Her custom build at 125,000 EUR plus 20,000 EUR/year pays back within the first financial year.
FAQ
Does the software handle drawdowns? Yes, it manages the drawdown schedule per unit and per program, with automatic reminders and accounting reconciliation. It is a key item of developer cash flow.
Can we connect our accounting? Yes, integration with major ERPs and accounting software is part of scope. Budget 10,000 to 25,000 EUR depending on APIs and flow volume.
Can we manage several programs in parallel? Yes, the multi-program dashboard is native: sell-through rate, reservations, deeds and cash flow per program, in real time.
How long to deploy? Expect 4 to 8 months depending on modules, with a possible go-live on a pilot program from week 12 to validate the reservation-to-deed flows.
Is unit tracking truly real time? Yes, every status change (option, reservation, deed) updates the grid and dashboards instantly. No more gaps between spreadsheets.
Let's scope your project. Tell us your number of programs, unit volume and current tools, with an indicative budget between 60,000 and 160,000 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.
