Illustrative photo.
How long will this take? It is the first question almost every business asks about a software project, and the honest answer is that it depends on what you are building. But 'it depends' is not useful on its own. This guide gives London, Ontario businesses a realistic way to think about software timelines: the phases every project goes through, typical durations by project size, and what actually moves the finish line.
For the wider picture on commissioning software locally, see our overview of software development for London, Ontario businesses.
The phases every project goes through
Nearly every software project follows the same arc. Discovery and scoping, typically one to three weeks, is where requirements get defined and the plan gets written; skipping this phase is the most common cause of everything that follows going wrong. Design, typically two to four weeks, covers user interface and experience work so everyone can see what is being built before it is built. Development is the longest phase, typically four to sixteen weeks or more depending on scope. Testing and launch, typically one to three weeks, covers quality assurance, deployment, training, and the inevitable small fixes. These phases often overlap, but none of them can be skipped without consequences.
Typical timelines by project size
As a rough guide, a small focused tool such as an internal dashboard or a simple quoting system typically takes six to ten weeks from kickoff to launch. A customer portal or booking system with user accounts, payments, and integrations typically takes three to five months. A complex platform with multiple user roles, deep integrations, or mobile apps typically takes six to twelve months. Timelines shorter than these are possible with tight scope and fast decisions; timelines longer than these usually signal scope growth or stalled feedback rather than slow coding.
What stretches timelines most
In our experience, delays rarely come from developers typing slowly. The biggest timeline killers are unclear requirements discovered mid-build, slow client feedback on designs and decisions, scope added after work has started, integrations with third-party systems that prove messier than expected, and content or data the client was supposed to provide arriving late. Notice how many of these sit on the client's side: your responsiveness is one of the largest variables in the schedule.
Does working with a London developer change the timeline?
Not in the way people expect. London has a growing tech community and plenty of capable developers, and in-person discovery sessions can genuinely speed up the early phases when the project is complex. But day-to-day development speed depends on process and communication, not geography; a disciplined remote team will outpace a disorganised local one. Choose your developer for fit and process. The timeline follows from how you both work, not from the postal code.
How to get a realistic timeline from a quote
A timeline you can trust comes with specifics. Ask whether design, testing, and deployment are included in the dates or assumed to happen somehow. Ask what the developer needs from you and by when, since your deliverables are usually on the critical path. Ask what happens when feedback takes longer than planned, and how changes to scope affect the schedule. A developer who answers these clearly is one who has thought about your project; a single date with no breakdown is a guess.
Ways to ship faster without cutting corners
Start with the smallest version that delivers real value and add the rest in phases; a focused first release in ten weeks beats a perfect vision in ten months. Assign one decision-maker on your side who can give feedback within days, not weeks. Provide content, data, and access early rather than when asked twice. And resist adding features mid-build: every addition restarts design and testing for the affected parts. Speed comes from discipline, not pressure.
A sample 12-week project calendar
To make the phases concrete, here is what a typical small web application build looks like. Weeks 1 to 2: discovery, where requirements are defined and the technical plan is written. Weeks 3 to 4: design, where you review and approve screens before anything is built. Weeks 5 to 10: development in two-week cycles with regular demos of working software. Weeks 11 to 12: testing, data migration, staff training, and launch. Your feedback speed directly affects this calendar: approve designs in days and the project stays on track; take three weeks per review round and the finish line moves.
What a realistic proposal timeline includes
When a London developer sends you a proposal, the timeline section should read like a plan, not a promise. Look for named phases with week ranges, your deliverables listed with due dates, explicit assumptions about scope and integrations, and a stated process for handling changes. Proposals that give a single end date with no breakdown are asking for your trust without earning it; proposals with a phased calendar are showing their working.
What is the fastest a simple web app can realistically be built?
Four to six weeks is achievable for a genuinely simple scope: a handful of screens, standard features, no complex integrations, and fast client feedback. Faster than that usually means cutting testing or design, which tends to cost more later than it saves now.
Why do software projects run late?
The most common reasons are requirements that were never fully defined, decisions and feedback that stall on the client side, scope added during development, and integrations that prove harder than expected. Almost all of these are preventable with a proper discovery phase and disciplined change management.
Should I be suspicious of a very short timeline?
A short timeline is fine if it comes with a small, clearly defined scope. Be cautious when an ambitious scope comes with an aggressive date and no explanation of what is excluded. Ask what would have to go right for the date to hold; the answer reveals whether it is a plan or a sales tactic.
If you are scoping a project and want a timeline grounded in your actual requirements, that conversation starts with discovery, not guessing. Our custom web application development process begins with scoping, so the timeline you get is one we can stand behind. Get a free quote and we will map your project to a realistic schedule.