Nature & environment

The human version (we wrote this, not the council)This section explains why a new Local Plan is needed. Buckinghamshire became a single unitary council in April 2020, and this is the first plan to cover the whole county under one framework. The old district plans are increasingly out of date, and national policy has changed. National policy identifies a housing need of about 4,344 homes a year up to the end of March 2045. The county must balance this growth with protecting assets such as the Chilterns National Landscape and the Green Belt.

The human version (we wrote this, not the council)This section explains how the plan is being prepared. The councils have based their strategy on technical evidence and feedback from residents, businesses and other stakeholders, working within national planning policy. A Sustainability Appraisal tests the social, environmental and economic effects of the options, and a Habitats Regulations Assessment checks that proposals will not significantly harm protected species or habitats. Equalities and health assessments have also been prepared, and the councils have worked with neighbouring authorities on cross-boundary issues such as unmet housing need.

The human version (we wrote this, not the council)This section covers the environment and landscape. About 32% of Buckinghamshire is Metropolitan Green Belt and around 27% lies within the Chilterns National Landscape. The county has around 180 conservation areas, close to 6,000 listed buildings, and nationally important chalk streams. It faces pressures from flood risk, rising temperatures, water supply and treatment constraints, and biodiversity loss. Balancing new development with protecting these assets is a major challenge for the Plan.

The human version (we wrote this, not the council)This section explains sustainable development and the plan's approach of Environmental Net Gain (ENG). Sustainable development means meeting today's needs without compromising future generations. ENG aims to leave the local environment better off than legal biodiversity rules alone require, covering carbon, soils, water, air quality, flood management and green spaces. ENG is an ambition rather than a mandatory requirement, but it is embedded across many policies, marked with a special symbol, and counts as a material consideration when shaping development proposals.

The human version (we wrote this, not the council)This section sets out the full wording and reasoning behind Policy DS.1 on environmental mitigation and compensation. Compensation is only supported where avoidance and mitigation are not achievable and where measures are deliverable, secured and managed long term. Off-site measures should align with local priorities such as the Warwickshire Local Nature Recovery Strategy. The policy extends the national mitigation hierarchy beyond biodiversity to other natural assets and ecosystem services, and it does not override statutory tests on heritage, flood risk or biodiversity.

The human version (we wrote this, not the council)This section sets out the site allocations for Carpenders Park. Three housing sites are allocated with a combined indicative capacity of around 244 homes: Land at Oxhey Lane (98 homes), Land North of Oxhey Lane (96 homes) and Grange Wood (50 homes). The site tables set out size, phasing and Green Belt status, together with site-specific requirements and constraints that future planning applications must address.

The human version (we wrote this, not the council)This section sets out Objective 1, on the natural and built environment. It aims to conserve and enhance Buckinghamshire's natural, historic and built environments and protect them from inappropriate development. This includes sustaining rural character, protecting the Chilterns National Landscape and Green Belt, improving water quality in rivers and rare chalk streams, and respecting heritage assets. The county has three Special Areas of Conservation, around 180 conservation areas and close to 6,000 listed buildings.

The human version (we wrote this, not the council)This section sets out the site allocations for Chorleywood. Eight housing sites are allocated, references H18 to H26 (there is no H19), with a combined indicative capacity of around 217 homes. The largest are Land at Chorleywood Station (81 homes), North Hill Farm (57 homes) and Hill Farm, Stag Lane (40 homes); the smallest include garage sites and Chorleywood Library at five homes each. Site tables cover size, phasing, Green Belt or grey belt status and site-specific requirements such as access, heritage and flood mitigation.

The human version (we wrote this, not the council)This section explains the purpose of the strategy for economic growth. It aims to support a resilient, sustainable and competitive economy by ensuring enough land is available in the right locations to meet employment needs. It seeks to grow high-value, high-productivity sectors by identifying and protecting well-connected strategic employment sites, in line with the Buckinghamshire Economic Growth Plan, and to support the regeneration of town centres as economic hubs.

The human version (we wrote this, not the council)This policy sets out retail and leisure provision. It makes provision for 59,210 sqm of floorspace for retail, food and drink, and leisure and cultural uses by 2035. Needs are met first through sites already built or with permission, then by reducing town centre vacancy rates to 10%, which can provide at least 14,300 sqm, mainly in High Wycombe and Aylesbury. The Plan also allocates around 10,100 sqm of new retail space, and large development sites must provide local centres for day-to-day needs.

The human version (we wrote this, not the council)This section explains the purpose of the infrastructure policy: making sure new development is backed by coordinated, resilient transport, telecoms, utilities and waste facilities. It sets out how the policy will work in practice through the detailed rules in Chapter 7, which cover things like transport requirements, parking, public rights of way, water and telecoms infrastructure, plus wider policies on design, biodiversity, flooding and drainage.

The human version (we wrote this, not the council)This section explains the purpose of the renewable energy policy: supporting the move to a low-carbon, climate-resilient future through energy efficiency, renewable energy generation and careful use of natural resources. It describes how delivery will be supported by the detailed Chapter 7 policies on matters such as water, flooding, biodiversity, landscape, Green Belt, design and heritage, so that renewable energy schemes are well located and protect Buckinghamshire's environment.

The human version (we wrote this, not the council)This section explains the purpose of the community facilities policy: making sure communities can reach the services, facilities and social infrastructure they need. It describes how the policy will be delivered through the detailed Chapter 7 rules on infrastructure delivery, health impact assessment, community, sport and leisure facilities, food growing and fast food outlets, alongside wider policies on design, transport, biodiversity and flooding, so facilities are accessible and support healthy, inclusive communities.

The human version (we wrote this, not the council)This section explains the purpose of the natural environment policy: conserving and enhancing Buckinghamshire's biodiversity, landscapes, water and green spaces while strengthening resilience to climate change. It sets out how delivery will run through the detailed Chapter 7 policies on matters such as water quality, biodiversity gain, green infrastructure, trees, protected sites, Green Belt, landscape character, flood risk and drainage.

The human version (we wrote this, not the council)This policy sets out how the Council will protect and improve the natural environment and respond to climate change. It commits to conserving the Chilterns National Landscape, delivering at least 10% biodiversity net gain on qualifying developments, and supporting nature recovery through the local strategy. It also covers protecting water quality, aiming for good status in rivers and groundwater by 2027, directing growth to places that reduce car travel, using sustainable drainage, adopting higher water efficiency standards, and supporting renewable energy.

The human version (we wrote this, not the council)This section explains the purpose of the placemaking policy: securing high-quality, sustainable development that responds to Buckinghamshire's character, heritage and landscape. It describes how delivery will work through the detailed Chapter 7 policies on design, residential amenity and space standards, together with wider rules on heritage, community facilities, transport, biodiversity, landscape and flooding, so new places are attractive, healthy, well connected and resilient.

The human version (we wrote this, not the council)This section introduces the biodiversity, green and blue infrastructure and landscapes chapter. It explains that England is one of the most nature-depleted countries on Earth and Three Rivers has not escaped that decline. New laws, especially the Environment Act 2021, give councils a duty to conserve and enhance biodiversity, and introduce Biodiversity Net Gain and Local Nature Recovery Strategies. Development must follow the mitigation hierarchy: avoid harm first, then mitigate it, and only compensate as a last resort. The district's wildlife, from wetlands to woodlands, is described as integral to its character and quality of life.

The human version (we wrote this, not the council)This section explains the purpose of the heritage policy: conserving and enhancing Buckinghamshire's historic environment as an irreplaceable resource that supports local character and identity. It sets out how delivery will run through the detailed Chapter 7 policies on conservation areas, heritage assets and design, alongside wider rules on amenity, transport, biodiversity, landscape and flooding, so historic buildings and places are protected as part of sustainable growth.

The human version (we wrote this, not the council)This policy requires qualifying development to deliver at least 10% measurable biodiversity net gain, meaning the site must be left better for nature than before, measured with the Government's statutory metric. Gains should be delivered on site first, then off site, with buying statutory credits a last resort, secured by monitoring plans lasting at least 30 years. Protection of wildlife sites is weighted by importance, from international down to local, and loss of irreplaceable habitats such as ancient woodland will normally be refused. New housing must provide on average at least one swift brick per dwelling for nesting birds.

The human version (we wrote this, not the council)This section explains the purpose of the healthy communities policy: promoting healthy, inclusive and safe places and helping to reduce health inequalities across Buckinghamshire. It describes how delivery will work through the detailed Chapter 7 policies on health impact assessment, community and sports facilities, food growing and fast food outlets, plus wider rules on design, transport, green infrastructure and environmental quality.

The human version (we wrote this, not the council)This policy protects trees, woodlands and hedgerows and requires good landscaping in new development. At least one tree must be planted on site for each new dwelling, or one per 100 square metres of non-residential floorspace, using native species, with a financial contribution towards off-site planting where on-site planting is not possible. Existing trees and hedgerows should be retained wherever possible, and permission will be refused for development causing loss of protected woodland, ancient woodland, veteran trees or protected hedgerows unless conditions can secure their protection. Approved felling requires suitable replacements.

The human version (we wrote this, not the council)This policy seeks a net gain in the quality and quantity of green and blue infrastructure, the network of green spaces, waterways and natural features across the district. Priorities include the chalk streams and corridors of the Rivers Chess, Colne and Gade, the Grand Union Canal, the Chilterns National Landscape, the Colne Valley Regional Park and Rickmansworth Aquadrome. New development must contribute to new and improved green space and better links between assets, with management and maintenance plans required. Public rights of way should be protected, ideally with 20 metre buffers, and development must not fragment the network.

The human version (we wrote this, not the council)This section sets out the site allocations for South Oxhey. Four housing sites are allocated with a combined indicative capacity of around 200 homes: Northwick Day Centre on Northwick Road (50 homes), the former Sir James Altham School (30), Pinewood Lodge (40) and Land South of St Josephs (80). Each site table sets out size, phasing, whether the land is brownfield or greenfield, Green Belt status and the site-specific requirements future proposals must meet.

The human version (we wrote this, not the council)This policy protects the Chilterns Beechwoods Special Area of Conservation, an internationally important wildlife site, from pressure caused by new residents visiting it. Development within the site's zone of influence that would add 100 or more homes must undergo a Habitats Regulations Assessment. Where required, schemes must provide mitigation or avoidance measures, principally Suitable Alternative Natural Greenspace (SANG), attractive green space designed to draw visitors away from the protected area, or a financial contribution towards it. The 100-home threshold was set on the advice of Natural England.

The human version (we wrote this, not the council)This policy protects the district's landscapes, especially the 546 hectares of the Chilterns National Landscape. There is a presumption against major development there, normally 10 or more homes or sites over 0.5 hectares, unless exceptional circumstances apply and it is in the public interest. Permission requires conserving the area's special qualities, following the Chilterns Management Plan and Buildings Design Guide, avoiding harm to important views, and submitting a Landscape Visual Impact Assessment. Elsewhere, proposals must respond to the character and sensitivities of their landscape area as set out in the Hertfordshire Landscape Character Assessments.

The human version (we wrote this, not the council)This section covers Warner Bros. Studios at Leavesden, a key asset for the creative industries and one of the few UK locations able to host large-scale film production. The studio tour attracts over 6,000 visitors a day at peak times, and Warner Bros. plans to grow the site by around a quarter. The existing 63 hectare studios site (WB1) is safeguarded, and two expansion sites are allocated: land at Gypsy Lane, Hunton Bridge (WB2) and land west of Leavesden Aerodrome (WB3), which already has planning permission and includes public open space.

The human version (we wrote this, not the council)This policy controls adverts, signs and shop fronts. They must not harm the character of an area or building through poor size, design, colour or materials, and must not put pedestrians or road users at risk. Flashing signs and lighting that causes light pollution for nearby homes or wildlife are not allowed. Signs should normally sit within the premises they relate to, avoid adding to clutter, and respect listed buildings, conservation areas and other heritage assets.

The human version (we wrote this, not the council)This allocation creates a new settlement on a 381.6-hectare site in north Buckinghamshire, next to the Milton Keynes boundary. It will deliver a minimum of 8,230 homes, with around 3,200 in the plan period to 2045 and the rest beyond, plus 15 Gypsy and Traveller pitches and around 2,500 sqm of town centre uses. Requirements include four primary schools, two secondary schools, the Whaddon Bypass and a spine road network. Green gaps must keep Beachampton, Nash and Whaddon separate, and Ancient Woodland must be protected with buffers.

The human version (we wrote this, not the council)This section introduces the green and blue infrastructure chapter. Green infrastructure means natural, cultivated or designed assets such as trees, woodlands, hedgerows and open spaces. Blue infrastructure means water features such as rivers, streams, wetlands, ponds and canals, and some features, like floodplains, can be both. The policies here support strategic objectives including timely infrastructure, attractive places, better quality of life, connecting people to places and protecting environmental assets.

The human version (we wrote this, not the council)This section adds detail on how sustainable drainage systems should be designed. SuDS must be planned as an integral part of the site layout, favouring above-ground and dispersed features rather than reliance on one large storage feature. They should deliver several benefits at once: reducing flood risk, cleaning water through a four-stage treatment train, boosting wildlife, providing attractive amenity space and helping to cool urban areas. Drainage features should also become part of the wider ecological network.