New build broadband isn’t as simple as picking any provider
Moving home into a new build comes with a broadband catch nobody mentions at the show home: you often can’t just pick whoever you like. New build broadband is frequently tied to whichever network the developer struck a deal with, and that can mean a much shorter list of providers than you’d get on an older street.
It isn’t a scam or a hidden fee. It’s a practical trade the developer made, usually before you ever viewed the plot, to get broadband working on day one rather than leaving new residents waiting months for a connection.
Knowing this before you complete means you can ask the right questions early, rather than discovering it the week you’re trying to get online.
Why can’t I choose any broadband provider in a new build?
Developers typically strike a deal with one network to install the physical infrastructure across the whole site. Digging up the same roads for multiple competing networks would be slower and more expensive, so most sites end up with a single infrastructure provider rather than the usual mix.
That infrastructure provider is sometimes Openreach, and sometimes an alternative network such as CityFibre, Hyperoptic or a smaller regional builder. Either way, whoever isn’t on that network generally can’t offer you a line on day one.
Does that mean I’m stuck with one company forever?
Not necessarily, and this is the detail worth checking. A single physical network doesn’t always mean a single provider. Openreach and CityFibre are both wholesale networks that multiple retail providers sell over, so your new build broadband might come with a handful of household names to choose from, even if the underlying cable is only one network.
Where it does get restrictive is an exclusive arrangement that locks out other networks entirely for a set period. Ofcom’s ongoing work on fibre competition is gradually narrowing how long these exclusivity periods can run, but they haven’t disappeared, so it’s still worth asking directly rather than assuming.
What should I check before I complete on a new build home?
Getting new build broadband sorted before you exchange saves weeks of hassle later. A few questions to the developer or estate agent are worth asking upfront:
- Which network provides the physical infrastructure, and is it Openreach, CityFibre, or a smaller alternative network?
- How many retail providers actually sell over that network, not just which one the developer partnered with directly?
- Is there a fixed exclusivity period before other providers can offer a line, and when does it end?
- Will broadband genuinely be live on your move-in date, or does the show home’s connection not reflect your specific plot yet?
Estate agents don’t always know the detail, so it’s worth asking the developer’s sales office directly and getting the answer in writing where you can.
What if broadband isn’t ready when I move in?
A mobile broadband router or a SIM-only data plan in a phone acting as a hotspot is the usual stopgap for new build broadband delays, similar to the workaround covered in our broadband installation wait guide. It’s worth budgeting a few weeks of that as a buffer even if you’re told everything will be ready on time.
New build broadband on the first phase of a large development is more prone to installation slippage than an established street, simply because the infrastructure itself is often still being finished around you.
Key takeaways
- New build broadband is often tied to whichever network the developer partnered with, not a free choice from day one.
- One physical network can still carry several retail providers, so check who actually sells over it.
- Exclusivity periods exist but are shrinking under ongoing Ofcom rules on fibre competition.
- Ask the developer directly about network, provider choice and exclusivity before you exchange.
- A mobile hotspot or dongle is a sensible backup for the first few weeks on a new site.
Frequently asked questions about new build broadband
- Can I use Openreach broadband if my new build is on a different network?
- Not usually, at least not straight away. If the site’s infrastructure is a different network entirely, Openreach services generally aren’t available until, and unless, an Openreach line is later installed.
- How long do new build broadband exclusivity deals usually last?
- It varies by developer and network, and there’s no single fixed rule, but shorter exclusivity periods have become more common as Ofcom continues to review fibre competition rules.
- Will my new build broadband speed match what’s advertised?
- It should reflect the network technology installed (such as full fibre), but always confirm the specific speed tier available on your plot rather than assuming it matches a show home or sales brochure figure.
- Does new build broadband cost more than a normal switch?
- Not inherently, though with fewer providers competing for your business initially, deals may be less aggressive than on an open street with full choice. It’s still worth comparing whatever options are available.
- Can I switch away later once the exclusivity period ends?
- Generally yes, once other providers are able to offer a service on your address, switching works the same way as anywhere else.
Roo’s honest take: new build broadband isn’t rigged against you, it’s just built around the developer’s timetable rather than yours. Ask the right questions early and it stops being a surprise.
A five-minute call to the sales office before you exchange beats a frustrated call to three different providers after you’ve moved in.
