Growth Driven Design: Why We Stopped Doing Big Bang Website Rebuilds

A website launch is a start date. Almost every rebuild is sold as though it were a finish line, which is how a site signed off in March reads as out of date by September.

Growth Driven Design is the alternative, and the reason we stopped selling big bang rebuilds. Launch a smaller site sooner, then keep changing it every month against what people actually do on it. The methodology is HubSpot's own, so none of this is our invention. What follows is what it looks like when you run it, where a traditional rebuild still wins, and the way it falls over.

Why we stopped doing big bang rebuilds

A traditional rebuild is one long build followed by nothing. Discovery, design, development, launch, invoice, silence.

Every decision inside it is made by three parties, the agency, the developer and the client, and none of them is the person who will use the site. Most of those guesses are fine. Some are wrong. You find out which is which about a month after launch, at the exact point the budget has closed and the project team has moved on, so the wrong ones stay.

Then there is the waiting. Four months of build is four months of your current site still doing the converting. Anything discovered halfway through becomes a variation, and a variation either costs money or pushes the date.

What Growth Driven Design does differently

Two things.

First, a Launch Pad site. A smaller version built from the pages and features you are confident about, live in weeks instead of months. It is deliberately incomplete. Anything you cannot justify with evidence stays out until you have some.

Second, a monthly cycle. Once the site is live and tracked, each month you pick the highest value thing to change, build it, measure what happened, and hand what you learned to whoever is running the rest of the marketing. The site in month twelve is nothing like the one you launched, which is the whole idea.

The money follows the same shape. No large payment before anything exists, a monthly amount instead.

When a traditional rebuild is still the right call

For some businesses it genuinely is.

If you already have real traffic, say more than 10,000 visitors a month, and marketing assets that perform without heavy paid search behind them, you have enough of your own evidence to make good decisions upfront. The guessing problem mostly goes away, because you are not guessing.

Certainty counts too. A finite timeline you can put in front of a board, a process your team has been through before, and one expense to approve instead of a monthly line item are real advantages, and pretending otherwise would be dishonest. The trap is what happens next. If you buy a one and done rebuild, book the follow up work in the same conversation, or you will have bought a site that starts ageing the day it goes live.

Where Growth Driven Design falls over

It fails when nobody does the monthly work.

The Launch Pad goes live, everyone is pleased, and month two arrives with no one whose job it is to decide what changes. Six months later you own a small site instead of a finished one. Same stale website, less of it.

The other objections are fair. There is no launch date set in stone to hold anyone to, which some boards hate. A monthly cost can feel heavier than a single large one even when it totals less, because it never stops arriving. And it is an unfamiliar process, so the first two cycles take patience while everyone works out how it feels.

All of that has one answer, and it is agreed before the build starts: who decides what changes each month, and which number you want to move.

What happens after launch, in numbers

Two Australian builds on our work page show what the months after a launch are worth, whichever model you buy.

AUSMAR, an Australian home builder, moved off WordPress onto HubSpot with more than 80 pages migrated. The numbers arrived after that: 23.36 per cent more new deals in seven months, alongside a 70 per cent reduction in maintenance overhead. The second figure is what buys the first. A site nobody dreads editing is a site that gets edited.

Emesent, an Australian drone and LiDAR mapping company, went the same way across seven language markets with zero downtime on the DNS cutover, on time and on budget. Their Head of Platforms, Katie K, described the result in terms of what the marketing team does now: "It has just simplified life for us, for the marketing team. It's made our day-to-day workflows more efficient."

Neither of those numbers existed on launch day.

The parts that keep mattering long after go live

Speed is the obvious one, and it decays. Pages, scripts and tracking pile up over a year until the site loads slower than it did the week it went live, which is the reason we wrote a whole separate piece on why site speed keeps mattering long after launch.

Conversion is the other. People arrive expecting navigation that makes sense, pages that load and a site that works on a phone, and those expectations keep climbing without anyone announcing it. If you want the longer version, we went through how leading Australian agencies actually approach B2B web conversion in a separate piece.

Both are the kind of work a monthly cycle absorbs and a finished project cannot.

Wrapping Up

Pick the model that matches how your business behaves. Plenty of traffic, good evidence and a board that wants a date? Take the one and done rebuild, and book the ongoing work before you sign. Short on all three? Launch smaller and keep going.

Either way, put the monthly hour in a named person's calendar before the site goes live. That hour is the difference between a website and a website project.

Working out which one you need? That is what our Operating Systems and Websites work is for. Give us a nudge and we will tell you honestly which of the two you should be buying.

So, what has actually changed on your website since the day it launched?

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Happy optimising.