Milton Keynes has quietly become one of the UK’s most active hubs for growing software and ecommerce businesses. Between the tech tenants around Central Milton Keynes, the innovation coming out of MK:U, and the city’s position on the London–Birmingham corridor, there’s no shortage of ambitious founders and operations teams looking to build serious software — not just a website. If you’re one of them, you’ve probably already discovered the problem: freelancers are cheap but unreliable, and agencies are polished but slow, expensive, and vague about what you actually own at the end.
By Design UK sits between the two. We’re a UK-based software development team offering fixed-price SaaS and ecommerce builds, accelerated with AI-assisted development workflows, with full source code ownership handed to you on completion — no lock-in, no ongoing dependency unless you want one.
A freelancer can move fast for a few weeks, then disappear when a bigger contract comes along, leaving you with undocumented code and no support path. A traditional agency will run discovery workshops for months, quote a number with no breakdown, and bill you for every change request along the way. Neither model suits a Milton Keynes business that needs to launch, iterate, and scale without burning six months of runway on process.
Our model is built around three things: a fixed price agreed before work starts, AI-accelerated development that compresses build timelines without cutting corners on architecture, and full ownership of the source code — it’s yours, hosted where you choose, extendable by any developer you bring in later.
Rather than ask you to take our word for it, we point to Tackly.co.uk, a live multi-toolkit SaaS platform we designed, built, and continue to operate ourselves. It’s a genuine production system handling real users, real infrastructure, and real ongoing maintenance — the same standard of engineering we bring to client projects. If you want to see what “technical capability” looks like in practice rather than in a sales deck, Tackly is the evidence.
Pricing depends entirely on scope, but we work within clear bands so you can plan a budget before committing to discovery. Full custom SaaS development typically ranges from £18,000 to £650,000+, covering everything from a focused MVP validating one core workflow through to complex multi-tenant platforms with billing, integrations, and enterprise-grade infrastructure. If your Milton Keynes business needs ecommerce rather than a SaaS product, our Shopify builds run from £499 to £18,999, depending on theme customisation, app integrations, and migration complexity.
Once live, ongoing platform health matters as much as the build itself. Our support plans start from £797/month for SaaS products and £299/month for Shopify stores, covering monitoring, bug fixes, security patching, and small iterative improvements — so your platform doesn’t quietly degrade the month after launch.
Everything is delivered from our team’s office in Enfield, but we work with businesses across the UK, including a growing number in Milton Keynes and the wider Buckinghamshire and Oxfordshire tech corridor. Distance has never been the constraint that matters — clarity of scope, pricing, and ownership is. You can read more about how we operate on our about page, or get in touch directly via our contact page to talk through your project.
Primarily remotely — our team is based in Enfield, and remote collaboration via calls, shared documentation, and staged demos works well for founders and teams in Milton Keynes. On-site meetings can be arranged for larger projects if genuinely useful.
A freelancer is one person with limited capacity and no guaranteed continuity. We’re a structured team with fixed pricing, documented processes, and a live product (Tackly.co.uk) proving our engineering standard — plus you retain full source code ownership regardless.
Most MVPs take between eight and sixteen weeks depending on scope, using AI-accelerated development to compress timelines without skipping architecture, testing, or documentation.
Yes. Our support plans start from £797/month for SaaS platforms and £299/month for Shopify stores, covering monitoring, fixes, security updates, and ongoing small improvements.
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