---
title: "Web Development Agency Sydney: Websites, Ecommerce & Apps | Croissant & Baguette"
description: "Sub-second websites, Shopify stores, web and mobile apps, built in Sydney and yours to keep. Websites from $9k, headless ecommerce from $15k, apps from $15k."
url: "https://croissantbaguette.com.au/web-development/"
---

# Web Development

https://croissantbaguette.com.au/web-development/

Sub-second websites, Shopify stores, web and mobile apps, built in Sydney and yours to keep. Websites from $9k, headless ecommerce from $15k, apps from $15k.

**Service:** Custom website, ecommerce and web app development (Web development)

Sub-second pre-rendered websites, headless and Shopify theme storefronts, and custom web apps, built in Sydney and owned by the client (code, CMS and hosting).

- **Websites** from A$9000 — Pre-rendered marketing sites, editable by your team. From $9,000.
- **Headless ecommerce** from A$15000 — Custom storefront on Shopify checkout. From $15,000, typically $18–35k.
- **Shopify theme build** from A$9000 — Custom Shopify theme, launched in weeks. From $9,000.
- **Web & mobile apps** from A$15000 — Portals, dashboards, booking systems, internal tools and mobile apps. From $15,000, typically $20–45k.
- **Care plan** from A$250 — Monitoring, dependency updates, small changes and a monthly performance snapshot. From $250 a month.

## Sites, stores and apps that load in under a second and don't need us to update.

The delivery layer for everything else we do. Custom-built, fast by default, and yours to keep: code, CMS and hosting.

## Three things we build.

- **Websites.** Marketing sites, pre-rendered by default: sub-second loads, practically free hosting, nothing to patch, editable by your team. WordPress when it's the right call.
- **eCommerce.** Shopify under the hood, a storefront that's actually yours. Fully headless or theme builds.
- **Web & mobile apps.** Portals, dashboards, booking systems, internal tools, and the app your team carries. Built around how you work; AI-ready by default.

- **+37% conversion rate** — Cheeky Kiwi Travel · booking platform, 10s to under 2s
- **<0.5s page loads** — Joris · perfect performance scores
- **30 days from kick-off to an Android app on live phones** — app, venue CMS and fleet cockpit in 22 staged releases
- **33% conversion rate** — Made Quiet · headless Shopify, built in six days
- **Double digit growth in sales** — Quitine · since moving off the theme

## Why builds still matter to us.

Every AI system needs an interface, and every growth plan needs pages that load and get cited. Building is not what we lead with any more; it's what makes the rest real.

sub-second, gets cited, yours to keep

- **AI Automation** needs an interface — agent → UI
- **SEO & AI Visibility** needs pages that load — SEO → pages

**Web Development**

## Ranges.

Fixed quote after a scoping call. No calculator; the interesting variables are never on a form.

What moves the price within those ranges:

- **Websites** from $9,000
- **Headless ecommerce** from $15,000 (typically $18–35k)
- **Shopify theme build** from $9,000
- **Web & mobile apps** from $15,000 (typically $20–45k)
- **Care plan** from $250/month

- number of page templates and integrations
- CMS and content-migration complexity
- custom logic vs. configuration
- how much design is from scratch

## Recently served.

- Booking platform on Rezdy, 10s to under 2s, conversion rate up 37%. (https://croissantbaguette.com.au/projects/cheeky-kiwi-travel/)
- ASX-listed financial services, 340 pages, published by their own team. (https://croissantbaguette.com.au/projects/fiducian/)
- Headless Shopify store in six days. First sale in week one, 33% conversion rate. (https://croissantbaguette.com.au/projects/made-quiet/)
- Free scanner to paid launch engine, extension and API, in nine weeks. (https://croissantbaguette.com.au/projects/nilkick/)
- 27s to 0.7s. Same content, new build. (https://croissantbaguette.com.au/projects/wingboy/)
- Headless Shopify store and the portal that pays 343 makers. (https://croissantbaguette.com.au/projects/pop/)

## Tell us what you need built.

A site, a store, an app, or the thing that sits under all three. Fixed quote after one scoping call.