The Challenges and Opportunities of a Once-in-a-Generation UK Gigabit Broadband Upgrade

Clive Quantrill


Subscribe Contact us

Authors


There will be as much change over the next five years as the previous twenty years


Globally, and in all major economies, fibre-to-the-premise (FTTP) gigabit broadband networks are being built at pace, replacing legacy broadband and phone networks. FTTP will grow to 75% of fixed broadband globally by 2030. The UK is arguably playing catch-up with many other countries in the FTTP build stakes, but now has one of the fastest FTTP build rates of any country. High levels of investment and regulatory freedoms have launched the UK into a highly disaggregated market with intensive competition and over 100 alternative network providers (AltNets) building FTTP today, competing with incumbents such as BT Group (Openreach) and Virgin Media O2.
 
FTTP broadband offers over 20 times the speed of legacy broadband networks, enabling a broad range of applications that require the higher speeds (e.g., streaming, gaming, virtual reality, remote surgery, metaverse) and, importantly, supports running many applications over many devices simultaneously. Once built, FTTP networks are also cheaper to maintain and operate for network providers and will be an infrastructure that will endure the next 25-50 years – a generational change of technology for everyone.
 
Customers have to be migrated from legacy broadband to FTTP. This requires an engineer visit to the home to drill a hole in the wall to get the fibre into the house and installation of two new pieces of equipment in the home (an Optical Network Terminal (ONT) screwed to the wall and a broadband router to provide Wi-Fi in the home). The hope from network operators is that customers, after having gone through this process once, are unlikely to want to repeat it too quickly to change FTTP providers. 
 
There are some important data points that paint an interesting picture of the UK broadband market at this critical time:

Everyone will need to migrate off legacy broadband products

  • Legacy broadband, made up of FTTC and ADSL broadband technologies (mainly form Openreach), covers 96% of UK homes with over 85% take-up - over 80% of UK homes use broadband
  • BT is switching off its legacy networks in 2025 - everyone will need to migrate off legacy broadband products
  • The top five consumer broadband brands have over 85% market share of legacy broadband (BT/EE/Plusnet; Virgin Media O2, Sky, TalkTalk and Vodafone) – this marks a challenge for the new entrants
  • Total UK FTTP investment is likely to exceed £30bn over a 10-year period, with a further £5bn in state aid from the UK Government's ‘Project Gigabit’ - many investors are looking for a return
  • Openreach plans to build its FTTP network to pass 25 million homes by the end of 2026; Virgin Media O2 plans to build FTTP to pass 23 million homes by the end of 2028; AltNet forecasts building FTTP to pass another 20 million+ premises - with 30 million premises in the UK there is a significant overbuild risk that could undermine some investments
  • Current UK FTTP take-up is in the order of 25% compared to closer to 50% in other areas of Europe – there is a lot of headroom for the UK to accelerate take-up

Incumbent Telcos


The move to FTTP is a double-edged sword for the incumbent broadband network providers such as BT Group and Virgin Media O2. They face the unenviable task of migrating all their customers to a new set of FTTP products, in parallel with building out the new FTTP network and upgrading their portfolios of voice and communication services to be fully FTTP-compatible. This transition requires exceptionally careful optimisation of churn and margin loss during migration of pushing customers too fast vs. the risk of losing market share to new network providers if they go too slowly.

 

However, the incumbents can look positively on their scale, brand strength, and channel reach advantages. Incumbents also have the not insignificant prize of being able to drive significant cost and complexity out of their businesses from switching off legacy networks and focus on running FTTP networks alone. A particular risk for incumbents is their enterprise and public sector customers, who often face a highly complex migration impacting their networks, IT systems, applications, and associated equipment. A note of caution is also warranted from other, comparable countries; in Germany, legacy network closure dates had to be extended to allow customers, especially those in the enterprise and public sector, more time to migrate successfully, for which someone has to foot the bill. 


Challengers: Alternative Network Providers (AltNets)


Responding to the opportunity created by the enabling regulation and supressed market demand, AltNets attracted over £10bn in private investment over the last five years, focused on building regional FTTP networks to lay a claim to geographic areas. The AltNets are now moving to drive FTTP customer take-up to monetise their investments and deter overbuild from competing network providers.
 
AltNets face some fundamental challenges to break into a market dominated by five established brands, which is pointing any of them to increasingly adopt wholesale models to maximise their channels to market. There is a likelihood that enabling ‘Open Access’ strategies, where AltNets can connect once into a community to sell to multiple retail brands and vice versa, i.e., retail brands can connect once into a community to buy form multiple AltNets, will be necessary to enable AltNets to achieve their take-up ambitions.
 
There is a lot of industry talk about a likely consolidation in areas such as the fragmented market, seeking synergies and economies of scale, and there are some early signs of acquisitions happening. The battle ground may well end up being the value of AltNets networks; coverage is interesting, but the number of paying customers is most important. 


What Cambridge MC can do to help


At Cambridge MC we are blessed with consultants with tens of years of experience, gained from senior roles in Tier 1 Telcos, AltNets and Enterprises, and all with a global perspective. With a wealth of expertise and experience, we are best placed to advise on strategies from planning to roll-out, and from every commercial and technological angle.

 

With a reputation for excellence and knowhow in the telecommunications industry, Cambridge MC will continue to track this generational change in operational and commercial models as they emerge globally. We pride ourselves on being ahead of the curve, and our consultants sit on many panels and boards that advise on current activities and future trends, able to advise your organisation on adoption strategies - for more information contact us using the form below.


Contact - Africa

About Us


Cambridge Management Consulting (Cambridge MC) is an international consulting firm that helps companies of all sizes have a better impact on the world. Founded in Cambridge, UK, initially to help the start-up community, Cambridge MC has grown to over 200 consultants working on projects in 25 countries. Our capabilities focus on supporting the private and public sector with their people, process and digital technology challenges.


What makes Cambridge Management Consulting unique is that it doesn’t employ consultants – only senior executives with real industry or government experience and the skills to advise their clients from a place of true credibility. Our team strives to have a highly positive impact on all the organisations they serve. We are confident there is no business or enterprise that we cannot help transform for the better.


Cambridge Management Consulting has offices or legal entities in Cambridge, London, New York, Paris, Dubai, Singapore and Helsinki, with further expansion planned in future. 


Subscribe to our Newsletter

Blog Subscribe

SHARE CONTENT

Pembroke College lawn bathed in sunlight
by Tim Passingham 12 March 2026
CAMBRIDGE | See how Cambridge MC and Pembroke College are creating mutual value through a unique corporate partnership spanning student opportunities, academic collaboration and industry events | READ FULL CASE STUDY
Neon sharks made out of code.
by Simon Crimp 9 March 2026
Cyber Security | Ransomware in 2026 is a board-level resilience issue. Learn the key risks, weak spots and practical questions boards should ask to improve readiness, recovery and response.
The Top 21.2026 at the awards event in Cambridge, UK.
6 March 2026
The #21toWatch Top21.2026 winners have been announced at an awards ceremony at The Glasshouse innovation hub in Cambridge.
Asian business woman near a long window and looking at a tablet.
by Arianna Mortali 6 March 2026
BLOG | A student’s perspective on why women shouldn’t have to ‘play masculine’ to succeed at work – and how valuing empathy, confidence and inclusive leadership can help close gender gaps and build healthier organisations.
Abstract squiggle of circles
by Simon Crimp 19 February 2026
Where should leaders start with AI in 2026? A practical guide to moving beyond pilots, clarifying risk appetite, strengthening governance, improving data readiness, and delivering measurable enterprise value from AI at scale | READ FULL ARTICLE
Close up of a data centre stack with ports and wires visible
12 February 2026
We were approached by one of the fastest growing data centre providers in Europe. With over 20 data centres throughout the continent, they are consistently meeting the need for scalable, high-performance infrastructure. Despite this, a key data centre in Scandinavia had become reliant on a single, non-redundant 1 Gbps internet service from a local provider, posing significant risks to operational continuity. To enhance the reliability of its network and resolve these risks, our client needed to establish additional connectivity paths to ensure the redundancy of its infrastructure. The Ask Cambridge Management Consulting was engaged to address these connectivity challenges by identifying and evaluating potential vendors and infrastructure options to create second and third connectivity paths. This involved exploring various types of connectivity, including internet access, point-to-point capacity, wavelengths, and dark fibre. Additionally, Cambridge MC was asked to provide recommendations for building a local fibre network around the data centre to control and maintain diverse paths. This would allow the data centre to connect directly to nearby points of presence (PoPs) and reduce dependency on external providers, thereby enhancing network resilience and operational control. The goal of this project was to ensure that the Nordic data centre could maintain continuous operations even in the event of a failure in the primary connection. Approach & Skills Cambridge MC approached the project with a focus on ensuring operational continuity and resilience for the data centre. By identifying multiple connectivity paths, we aimed to mitigate the risk of network failures and ensure that the data centre could maintain continuous operations even in the event of a failure in the primary connection. This approach allowed Cambridge MC to provide a comprehensive solution to address both immediate and long-term connectivity needs. We employed a combination of Agile and Waterfall methodologies to manage the project. The initial investigative phase allowed a Waterfall approach, in which our team conducted thorough research and analysis to identify potential vendors and connectivity options. This phase involved detailed interviews with various telecommunications providers and an assessment of publicly available information. Once the initial analysis was complete, the workflow transitioned to an Agile approach for the implementation phase. This allowed Cambridge MC to adapt to new information and feedback from stakeholders, ensuring that the final solution was both flexible and robust. Challenges Lack of information: One of the primary obstacles we faced was the lack of detailed network maps and information from some of the potential vendors. To overcome this, the team conducted extensive interviews with contacts at these companies and leveraged its existing network of industry contacts to gather as much information as possible. Remote location: Another challenge was the remote location of the data centre, which limited the availability of local infrastructure and required us to explore creative solutions for connectivity. Cambridge MC addressed this by proposing the construction of a local fibre network around the data centre, which would allow for greater control and flexibility in connecting to nearby PoPs. Fragmented factors: Additionally, coordinating with multiple vendors and ensuring that their services could be integrated seamlessly posed a logistical challenge. We mitigated this by recommending a phased approach to implementation, starting with the most critical connectivity paths and gradually expanding to include additional options. Outcomes & Results Increased Connectivity: Cambridge MC successfully identified and evaluated multiple connectivity paths for the data centre. By exploring various types of connectivity, including internet access, point-to-point capacity, wavelengths, and dark fibre, we provided a comprehensive solution that significantly enhanced network resilience and reliability. Greater Control & Flexibility: Our recommendations for building a local fibre network around the data centre allowed for greater control and flexibility in connecting to nearby points of presence, ensuring continuous operations even in the event of a failure in the primary connection. New Vendors: The team’s extensive network of industry contacts and deep understanding of the regional telecommunications landscape allowed for a thorough and nuanced evaluation of potential vendors and connectivity options. Scope for Future Work: Cambridge MC identified several future developments with the potential to further enhance international connectivity and provide additional redundancy for the data centre. We also proposed further assistance, including a site visit for a more in-depth analysis of options, issuing RFI/RFP to vendors for capacity and fibre, and conducting similar connectivity studies for other candidate sites in the region.
Neon discs fading from blue to green to purple, cascading diagnolly across the screen.
by Cambridge Management Consulting 28 January 2026
Thames Freeport this week revealed the eight companies selected to participate in the Freeport’s Connectivity Lab, an initiative focused on validating commercially proven technologies in live port and logistics environments.
Aerial view of a data centre warehouse in the English countryside
by Duncan Clubb 13 January 2026
Author
by Matt Lawson 2 January 2026
Emerging as a hub for innovation, Thames Freeport is a unique initiative designed to stimulate trade and transform the lives of people in its region. Leveraging global connectivity and occupying a strategic position with intermodal capabilities across river, rail, and road, Thames Freeport has recognised its opportunity to drive economic regeneration for the local area. Thames Freeport engaged Cambridge Management Consulting to design a clear strategy for innovation over the next three to five years. Key considerations for this innovation strategy included objectives and KPIs, the future of the business ecosystem in the region, physical clusters and assets such as innovation hubs, and opportunities and challenges on the way. The Solution Working with our innovation partner, L Marks, Cambridge MC conducted an innovation strategy project which involved the following: Engaging with a range of stakeholders and partners from local authorities to corporate partners across the Thames Freeport area, leveraging interviews with key individuals to build a common picture of innovation aspirations, opportunities, and challenges. Conducting a series of workshops for the Thames Freeport team to consider visions and objectives, themes and focus areas, physical hubs and overall programme structure, and a three-year roadmap plan. Building a comprehensive innovation strategy which internalised all of the above questions. This was then presented to their board and formed the basis of the public tenders for innovation programmes that were then made public. 
More posts