Constraints and Designations – Page 7
Green Belt, conservation areas, flood zones, SSSIs and other designations, and the reports they trigger.
Constraints and Designations articles – page 7
294 articlesBrine subsidence and salt field ground stability
Brine subsidence is a dissolution hazard, not a collapse hazard, and it can continue long after pumping stopped. Rockhead condition drives the whole risk assessment.
Radar safeguarding and why turbines and cranes get objections
Radar objections are about a structure being visible to a radar, not in the way of an aircraft. Here is how interference arises and how it gets resolved.
Public safety zones at the ends of runways
A public safety zone limits how many people can be present off the end of a runway. Here is how the contours are drawn, what is allowed, and how it differs from safeguarding.
Major hazard pipelines and the consultation zones around them
High pressure pipelines and major hazard sites carry consultation zones that can stop a housing layout. Here is how the zones and sensitivity levels combine, and how to check early.
Historic landfill records and sites next door to one
A former tip next door is a ground gas problem rather than a contamination problem. The monitoring takes months, so find out before you exchange.
Reservoir inundation zones and what planners expect
A site can sit in Flood Zone 1 and still be inside a reservoir inundation area. The assessment does not raise floor levels, it plans the evacuation.
Unexploded ordnance risk and when a survey is expected
Unexploded ordnance is not a mapped designation, so it surfaces late. A desk study costs days, while a find during piling costs weeks.
Public rights of way as a development constraint
A recorded footpath survives planning permission and has to be diverted by a separate order. This covers searching the definitive map and statement, unrecorded claims, layout design and temporary closures.
How to check whether your site is in the Green Belt
Online constraint layers are generalised, so a site on the line cannot be settled from them. This explains how to read the adopted policies map, the inset and washed-over distinction, and how to get a written answer.
Recreational disturbance zones and how SANGs work
Inside a recreational disturbance zone, a single net additional dwelling can require mitigation. This covers the Habitats Regulations trigger, how SANG capacity works and how contributions are secured.
Coal mining risk areas and the referral you cannot skip
In a Development High Risk Area the council will not validate your application without a coal mining risk assessment. This covers what the layer records, how zones of influence work and what has to be discharged.
Nitrate vulnerable zones and planning relevance
An NVZ is not a planning designation, but its storage duties frequently produce a planning application. Here is where the two regimes actually meet.
Radon affected areas and what the application addresses
Radon protection comes from the Building Regulations, not from planning. Here is how to check a plot, what basic and full measures involve, and when a council asks.
Non-designated heritage assets and their real weight
The balanced judgement is the whole test for a non-designated heritage asset. With no statutory duty and no harm framework, the evidence does all the work.
Assessing the setting of a scheduled monument
Setting has no mapped extent, so the assessment is an argument built on evidence. This sets out the staged method, the harm test and the mitigation that actually helps.
Functional land outside a habitats site boundary
Land with no designation can still require an appropriate assessment if it supports the qualifying features of a European site. Here is how linkage is established and what follows.
What an SSSI citation tells you before you design
The citation names the features, and the features name the pathways. Read it before commissioning anything, or you will pay for a survey answering a question nobody asked.
Reading an article 4 direction map and schedule
The direction, the schedule and the map have to be read together. The council's constraints layer is a guide, not the instrument, and the date it took effect governs everything.
Curtilage of a listed building: how far protection reaches
Structures inside the curtilage of a listed building that stood before 1 July 1948 are protected as if listed, even after the land is sold off separately. Here is how the test works.
Limited infilling in villages within the Green Belt
Three words each have to be satisfied: limited, infilling, village. How inspectors judge a gap in a built-up frontage, and the situations that only look like infill.
Air Quality Management Areas: checking and consequences
An AQMA declaration shifts the burden of proof onto the applicant. How to find the order and the pollutant, what triggers an assessment, and how damage cost contributions are calculated.
Site allocations: what they commit you to
An allocation does not grant permission. It commits you to the quantum, access, infrastructure and masterplan requirements in the policy and its supporting text.
Ramsar sites and the protection applied in planning
Ramsar sites are protected through planning policy rather than automatically by the Habitats Regulations, but the assessment sequence is the same. Here is how to scope and evidence it.
Nutrient neutrality: checking whether your site is caught
Three questions settle nutrient neutrality: does the site drain into an affected catchment, does the scheme add overnight population, and is mitigation actually available.
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