The Government's decision to replace Devon's existing local government structure with four new unitary authorities represents one of the most significant changes to planning governance in the county for decades. While the headlines have understandably focused on the politics of local government reorganisation, the implications for planning, housing delivery and infrastructure provision could be even more profound. According to the Government-approved proposal, Devon will move towards a structure comprising an expanded Exeter authority, an expanded Plymouth authority, an expanded Torbay authority and a new Devon Coast and Countryside authority covering much of the county's rural area, with implementation expected by 2028 following shadow elections in 2027.

For planning professionals, developers, infrastructure providers and local communities, the announcement raises important questions about how development will be planned and delivered across Devon in the future.

A Fundamental Change to How Planning Functions Are Organised

At present, much of Devon operates under a two-tier local government system. District councils are responsible for most planning applications and local planning policy, while Devon County Council delivers services including highways, education, waste disposal and strategic transport planning. Plymouth and Torbay already operate as unitary authorities and therefore combine these responsibilities within a single organisation.

The move to four unitary authorities will bring many of these functions together under single organisations. In planning terms, this means that development management, transport planning, education infrastructure planning and many aspects of economic development will increasingly sit under the same administrative umbrella.

This integration could reduce some of the fragmentation that has historically characterised decision-making in Devon. Infrastructure planning is often cited as one of the most challenging aspects of the development process, particularly where responsibilities are split between multiple organisations. Bringing these functions together may enable more coordinated decision-making and provide greater clarity for applicants and infrastructure providers.

The Rise of Strategic Planning Areas

Perhaps the most significant planning implication is the creation of much larger planning authorities.

Devon currently contains multiple local planning authorities, each with its own Local Plan, housing requirements, evidence base and planning priorities. Following reorganisation, these authorities will be consolidated into larger strategic geographies. Over time, this could lead to fewer planning documents, reduced duplication of evidence gathering and a stronger focus on strategic growth planning.

For developers working across Devon, greater policy consistency may emerge. While each authority will retain its own local priorities, the scale of the new organisations could encourage more coherent approaches to housing delivery, employment land allocation and infrastructure investment.

There are, however, potential disadvantages. Larger planning authorities can sometimes struggle to reflect the distinctive needs of individual communities. Devon contains a diverse range of settlements, ranging from growing urban areas and market towns to remote rural communities and coastal settlements. Balancing strategic objectives with local character will be one of the key challenges facing the new authorities.

Greater Exeter's Expanding Influence

One of the most notable aspects of the approved model is the expansion of Exeter beyond its current administrative boundaries. The proposal incorporates numerous surrounding parishes from East Devon, Mid Devon and Teignbridge into a larger Exeter authority.

From a planning perspective, this could prove highly significant.

For many years, Exeter's economic influence and housing market have extended well beyond the city's administrative boundary. Major growth locations, employment sites and infrastructure projects have often required collaboration across multiple local authorities. While initiatives such as the Greater Exeter Strategic Plan sought to address this challenge, governance arrangements remained complex.

The new structure may provide Exeter with a greater ability to plan for housing and employment growth in a more coordinated way. Strategic transport improvements, urban extensions and economic development projects could potentially be progressed through a single authority rather than requiring extensive cross-boundary agreement.

Whether this translates into faster housing delivery remains to be seen, but the governance barriers that have historically complicated growth around Exeter may be substantially reduced.

Opportunities for Infrastructure Delivery

For infrastructure providers, including water companies, energy operators and transport authorities, the move to larger unitary councils may simplify engagement.

One of the recurring criticisms of the planning system is that infrastructure planning and development planning are not always sufficiently aligned. Housing growth is often allocated through Local Plans years before infrastructure solutions are fully funded or delivered. In a unitary structure, there is greater potential for infrastructure planning to be embedded within wider growth strategies.

This may be particularly important as Devon seeks to accommodate future housing growth while addressing pressures on transport networks, water resources, wastewater treatment capacity and community infrastructure.

The extent of these benefits will largely depend on the organisational structures adopted by the new authorities. However, the potential for more integrated planning represents one of the strongest arguments in favour of reorganisation.

Challenges for Rural Devon

While attention has largely focused on Exeter, Plymouth and Torbay, the newly proposed Devon Coast and Countryside authority may prove equally significant.

Covering a substantial rural geography, the authority will be responsible for some of the county's most distinctive landscapes, coastal communities and agricultural areas. It is likely to become one of the largest predominantly rural unitary councils in England.

This presents opportunities for stronger rural advocacy and a more coordinated approach to issues such as affordable housing, rural employment, tourism and climate resilience.

However, concerns have already been raised about the potential loss of local identity and representation. Some district councils have expressed disappointment with the chosen model, particularly where existing district boundaries will be divided between new authorities.

From a planning perspective, the challenge will be ensuring that local knowledge and community priorities are not lost within much larger organisational structures.

The Transition Period Could Be Difficult

Although the long-term impacts dominate much of the debate, the short-term transition should not be overlooked.

Planning departments across the country already face significant recruitment and retention challenges. Local government reorganisation can create uncertainty for staff, potentially leading to the departure of experienced officers during a period when organisational knowledge is particularly valuable.

There may also be implications for Local Plans that are currently under preparation or review. Authorities will need to determine how existing work programmes align with future governance arrangements. While planning services will continue to operate as normal during the transition, the practical realities of merging teams, systems and procedures will inevitably require substantial effort.

Developers and communities may therefore experience a period of uncertainty before the new arrangements become fully established.

Looking Beyond the Reorganisation

Ultimately, local government structure alone does not determine planning outcomes. The creation of four unitary authorities will not automatically solve Devon's housing affordability challenges, infrastructure constraints or environmental pressures.

Nevertheless, the decision represents a rare opportunity to rethink how growth is planned and delivered across the county. If the new authorities can successfully integrate planning, infrastructure and economic development functions while maintaining meaningful local representation, Devon could emerge with a more coherent and effective planning system.

The real test of success will not be whether administrative boundaries have changed, but whether those changes lead to better places, stronger communities and infrastructure that keeps pace with growth.

For planners, developers and infrastructure providers, the announcement marks the beginning of a significant transition. While the new authorities may not formally take control until 2028, the decisions made over the next two years could shape the future of planning in Devon for decades to come.