The verdict in three sentences
A custom construction-and-development tool budgets between 12 000 000 and 22 000 000 FCFA one-off (about 18 000-33 000 EUR), plus 15 %/yr maintenance. It saves 11 h/month on work statements and cuts site overruns by 5 %, with milestone deposits collected through local payment rails. ROI lands around 26 months for a 30-employee firm.
Budget by functional module (FCFA)
Splitting the project into modules avoids the tunnel effect and lets you prioritise site tracking before sales. Each module is deliverable and billable independently.
| Functional module | Budget FCFA (one-off) | Main gain |
|---|---|---|
| Site tracking & statements | 4 000 000 - 7 000 000 | -11 h/month of entry |
| Unit sales | 3 000 000 - 5 500 000 | clear sales pipeline |
| Cash & payment schedules | 2 500 000 - 4 000 000 | cash visibility |
| Deposit collection | 1 500 000 - 2 500 000 | traced deposits |
| Plans & document store | 1 000 000 - 3 000 000 | no lost plan |
| Project total | 12 000 000 - 22 000 000 | |
| Annual maintenance (15 %) | 1 800 000 - 3 300 000/yr | fixes + evolutions |
_2026 order of magnitude for 30 employees, hosting included._
Project payment schedule
A multi-million FCFA project is paid in milestones tied to deliverables, which protects both parties and smooths the firm's cash flow.
| Milestone | Share of budget | Trigger |
|---|---|---|
| Scoping & specification | 20 % | specs validated |
| Site-tracking module delivered | 25 % | module 1 accepted |
| Sales module delivered | 20 % | module 2 accepted |
| Cash + deposit collection | 20 % | module 3 accepted |
| Go-live & training | 15 % | go-live validated |
| Total | 100 % |
_Overall estimated timeline: 14 to 20 weeks._
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Mini case study
Ousmane runs a 30-employee construction and development firm in Singapore. He invests 17 000 000 FCFA in the software (mid-range) plus 2 550 000 FCFA/yr maintenance. The 11 h/month saved on statements, valued at 6 000 FCFA/loaded hour, is about 792 000 FCFA/yr. But the bulk comes from avoided overruns: on an annual works volume of 400 000 000 FCFA, cutting overruns by 5 % represents 20 000 000 FCFA of drift better controlled, of which he conservatively captures a third, i.e. ~6 600 000 FCFA/yr of real net gain. Against total cost, ROI sits around 26 months, after which the tool is pure margin leverage.
FAQ
How much is custom construction software? Around 12 000 000 to 22 000 000 FCFA one-off for a 30-employee firm depending on modules chosen, plus 15 %/yr maintenance.
Can deposits be collected via local mobile-money rails? Yes: the collection module (1 500 000 - 2 500 000 FCFA) integrates local rails with per-unit deposit traceability.
What is the delivery timeline? A full project delivers in 14 to 20 weeks, split by module to put site tracking into production first.
How is such a project paid? In milestones tied to deliverables: 20 % at scoping, then 15-25 % tranches at each module acceptance up to go-live.
What concrete gain to expect? About 11 h/month saved on statements and, above all, -5 % site overruns, the item that weighs most on a developer's margin.
Let's scope your project. Share your number of active sites, your priority modules and an indicative budget (12-22 M FCFA): we price each module and the schedule. 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.
