New-build broadband delays: when your address cannot order yet
If your new-build address will not let you order broadband, it is almost always for one of two reasons: the address is not yet in the ordering and postcode systems, or the network has not finished commissioning the street. It is normally a matter of weeks, not months, and there are clear steps to speed it up and stay online while you wait.
- The usual cause is the address not yet being in ordering and postcode systems.
- The other common cause is the street network not being fully commissioned yet.
- Your developer knows which network was installed, so start there.
- A 4G or 5G deal keeps you online while the fixed line is sorted.
Why a new-build address cannot order yet
It is one of the most common new-build frustrations, and reassuringly it is rarely a fault with your home. There are two usual culprits. The first is that your address has not yet been added to the systems that providers check, including the Royal Mail Postcode Address File, so to a checker your home does not exist yet (Royal Mail, n.d.). The second is that the network has physically reached the estate but has not finished commissioning your street, so the connection is not yet switchable. A third, smaller cause is a mismatch between the plot number used during construction and your final postal address.
How to check what is really going on
A short, ordered set of checks will usually tell you which of the above you are dealing with, and what to do about it.
Work down it in order. Check the final postal address on the postcode comparison tool. Confirm the address is recognised by Royal Mail. Ask your developer which network was installed and when it is due to go live. Then, if needed, contact that network's new-build team directly.
Steps to speed it up
You have more influence than you might think. If the address is missing, ask the developer to confirm it has registered the site and the plots with the network, and get the postal address added to the Royal Mail address file, which providers rely on. If the street is not yet commissioned, the developer's site or sales team can usually give you the network's target date and chase it. Keeping a short written record of who you spoke to and when makes any escalation quicker.
Who to contact, and in what order
Start with your developer, because they chose the network and hold the site details. If that does not resolve it, ask them for the network's new-build or new-sites contact and go to the network directly. Royal Mail is the right port of call specifically for getting a new postal address recognised. Contacting individual providers first tends to be the slow route, since they can only sell once the address and network are live.
Stay online while you wait
There is no need to be offline in the meantime. A 4G or 5G home broadband deal, or a mobile hotspot, plugs the gap with no engineer and no long tie-in, and you retire it the moment your fixed line is ready. See 4G and 5G broadband deals and mobile broadband as a temporary backup. If you are renting the new build, our broadband for renters guide covers your options.
Realistic timelines
For most new builds this resolves in a few weeks as the address is registered and the street is commissioned. If you are into several months with no clear date, that is the point to escalate firmly through the developer to the network, using your written record. For the wider picture of how ordering works on a new estate, see our main new-build broadband guide.
New-build broadband delay FAQs
Why can I not order broadband at my new-build home?
Usually because the address is not yet in the ordering and postcode systems, including the Royal Mail address file, or because the network has not finished commissioning your street. Both are normal for a new build and usually resolve within weeks.
How do I get my new-build address added to broadband systems?
Ask your developer to confirm it has registered the site and plots with the network, and get the postal address recognised by Royal Mail, which providers check. These two steps clear most cases.
Who should I contact about a new-build broadband delay?
Start with your developer, since they chose the network and hold the site details. If needed, ask them for the network's new-build team and go direct. Use Royal Mail specifically to get a new postal address recognised.
How long do new-build broadband delays usually last?
For most homes it is a few weeks while the address is registered and the street is commissioned. If it runs to several months with no date, escalate through the developer to the network.
Can I get online before my new-build broadband is available?
Yes. A 4G or 5G home broadband deal or a mobile hotspot gets you online immediately with no engineer, and you can drop it once your fixed line is ready.
Is a plot number the same as my broadband address?
Not always. The plot number used during construction can differ from your final postal address, which sometimes causes a checker to show nothing. Always check using the confirmed postal address.
Related guides
References
- Royal Mail. (n.d.). Postcode Address File (PAF). [New addresses are added to the PAF before many broadband ordering systems recognise them; United Kingdom]. https://www.royalmail.com/business/services/marketing/data-optimisation/paf
- GOV.UK. (2022). New build connectivity: information for developers. [The Building etc. (Amendment) (England) (No. 2) Regulations 2022 came into force on 26 December 2022; developers must install gigabit-ready infrastructure and a gigabit-capable connection subject to a £2,000 per-dwelling cost cap; new homes in England]. https://www.gov.uk/guidance/new-build-connectivity-information-for-developers
Written by Adrian James, Broadband Editor, and reviewed by Dr Alex J. Martin-Smith. We update this guide as rules and deals change. BroadbandSwitch.uk is an independent UK comparison service and does not charge readers to use it. Figures are attributed to named sources with the date and scope shown above.