New build homes are the best and worst case in UK broadband. Best, because a house built in the last few years usually has full fibre installed before anyone moves in — no engineer, no drilling, gigabit from day one. Worst, because when it goes wrong you are in a house that does not exist yet as far as any provider’s system is concerned.
The difference comes down to things decided long before you saw the property.
Why most new builds are fine
Developers building homes at any scale generally arrange fibre during construction. It is far cheaper to lay duct in an open trench than to dig afterwards, and connectivity is a selling point.
So the common experience is: fibre already terminates in the house, you order a service, it activates remotely, done in days.
The four things that go wrong
1. Your address does not exist yet
The most common problem, and the most frustrating because everything else is ready.
Every property needs a record in the address databases the industry uses. New addresses take time to propagate, and until yours appears, provider checkers cannot find you. The fibre may be physically installed and terminated in your hallway, and the website will still say “we cannot find that address”.
What to do: ask the developer for the UPRN (Unique Property Reference Number) or the plot’s postal address as registered. Then phone the provider rather than using the website — a human can often place an order against a plot reference or a neighbouring address where the online form cannot. If the address genuinely has not been created, the developer or the local authority needs to progress that; the provider cannot.
2. The developer chose one network, exclusively
Some developments have a single network installed, occasionally under an exclusive arrangement.
If that network is a wholesale one, several retail providers may sell over it and you still have choice. If it is a vertically integrated operator selling direct, you may effectively have one option.
Check before you buy if you can. Ask the developer which network is installed and which retail providers sell over it. It rarely changes a purchase decision, but it is better known in advance than discovered afterwards.
3. Ducting installed, fibre not pulled
Increasingly common on smaller developments: the developer laid duct as required but no operator has yet pulled fibre through it or energised the estate.
Physically you are minutes from connection. Practically you may wait months, because it depends on an operator scheduling work.
What to do: find out which operator has the duct and register interest, as a street rather than individually. Demand data drives scheduling.
4. Small developments and conversions
Sites of a handful of homes, and barn or office conversions, frequently fall between the cracks. No developer arrangement, no existing line, and a new installation quoted at weeks.
Before you complete
Four questions to the developer, ideally in writing:
- Which broadband network is installed? Name the operator, not “fibre”.
- Is it live, or just ducted?
- Which retail providers can I order from?
- What is the postal address and UPRN?
Sales offices sometimes struggle with these. The site manager usually knows, and is often more useful.
The gap between moving in and being connected
Assume there will be one. Even in the good case, ordering cannot usually begin until you have keys and a working address.
A 4G or 5G router on a rolling SIM is the standard answer: arrives by post, works immediately, cancel monthly. For a few weeks it is genuinely adequate for most households, and it costs a fraction of what it saves in aggravation.
Do not sign a long broadband contract before you are connected. Order when you can actually receive service. A contract that starts before installation means paying for something you do not have.
New Homes and what you are entitled to
Building regulations now require new homes in England to be built with gigabit-capable connectivity where it can be provided within a cost cap. In practice most new homes get full fibre.
The cap matters: where connection would cost more than the threshold, the developer must install the infrastructure to accept a future connection rather than deliver a live service. So “fibre-ready” and “fibre-connected” are different claims, and a sales brochure may not distinguish them.
If broadband was represented to you as available and it is not, that is a matter for the developer under the sales contract rather than for a provider. Get any pre-purchase claims in writing.
Once you are in
Order early. Even remote activation takes days.
Think about where the ONT is. In new builds it is often in a cupboard or utility room, which is frequently the worst possible place for Wi-Fi. Moving the router away from the ONT with a longer cable, or running Ethernet to a central point, is much easier to arrange in an empty house than a furnished one.
Consider wiring while walls are accessible. If you have any influence during a fit-out, Ethernet to the main rooms is cheap during construction and expensive afterwards. It is the single best broadband decision available to anyone building or renovating.
The short version
- Most new builds have full fibre. The usual problem is paperwork, not cable.
- Ask the developer which network, whether it is live, and what your UPRN is.
- Phone providers rather than using their website if your address is not recognised.
- Plan for a gap; a rolling mobile router covers it.
- Think about where the router goes before the furniture arrives.
Sources
- gov.uk — UK Government — gigabit connectivity in new build homes
- gov.uk — Building Regulations approved documents, including Part R on connectivity
- ofcom.org.uk — Ofcom — consumer guidance on getting connected
- ordnancesurvey.co.uk — UPRN — Unique Property Reference Number