UK Planning & Property Glossary

Abatement notice

A notice served by a local authority requiring the abatement of a statutory nuisance.

Abeyance

A state of temporary disuse or suspension, often applied to land titles or planning applications.

Access statement

A document explaining how a development provides inclusive access for all users.

Accommodation

Space used for housing or commercial purposes, often assessed under building regulations.

Accredited agent

A professional recognized by a planning authority to submit applications on behalf of others.

Acre

A unit of land measurement equal to 4,840 square yards.

Action area

A designated zone in a local plan where specific regeneration or development activity is prioritized.

Active frontage

Street-level building design that encourages pedestrian activity through doors and windows.

Adverse possession

The legal process where a person claims ownership of land through long-term occupation.

Advisory committee

A group providing expert guidance to a local planning authority on specific development matters.

Affordable housing

Housing provided to specified eligible households whose needs are not met by the market.

Aftercare condition

A planning condition requiring maintenance of land after mineral extraction or waste tipping.

Agency

A government body, such as the Environment Agency, tasked with managing specific environmental regulations.

Agent of change

A principle requiring new developments to mitigate noise or nuisance for existing businesses nearby.

Agricultural building

A structure used for farming, often eligible for certain permitted development rights.

Agricultural holding

The total area of land occupied by a single farming unit.

Agricultural land classification

A system grading land quality from 1 (best) to 5 (poorest) for planning purposes.

Agricultural occupancy condition

A planning restriction limiting the occupation of a dwelling to someone employed in agriculture.

Agricultural tenancy

A lease governing the rental of land specifically for farming purposes.

Air quality management area

An area designated by a local authority where air pollution exceeds national objectives.

Allocation

The identification of land in a local plan for a specific type of development.

Allotment

A plot of land rented to an individual for growing vegetables or fruit.

Amenity

The pleasantness or attractive quality of a place, often protected by planning policies.

Amenity space

Outdoor areas provided for the use and enjoyment of building occupiers.

Ancient monument

A site of national historical importance protected under the Ancient Monuments Act.

Ancient woodland

An area that has been wooded continuously since at least 1600 AD.

Ancillary use

A use of land or building that is subordinate to the main, primary use.

Annual monitoring report

A document assessing a local planning authority's progress in delivering its local plan.

AONB

Area of Outstanding Natural Beauty, now known as National Landscape, with high scenic quality.

AONB / National Landscape

An Area of Outstanding Natural Beauty (also now referred to as a National Landscape) — designated for its scenic quality, where major development is restricted except in exceptional circumstances and where public interest can be demonstrated.

Appeal

The process of challenging a local planning authority's decision at the Planning Inspectorate.

Appellant

The party lodging an appeal against a decision made by a planning authority.

Applicant

The person or organization submitting a planning application to the local authority.

Application site

The precise area of land to which a planning permission or application relates.

Appraisal

An assessment of the value, viability, or potential impact of a development project.

Appropriate assessment

An evaluation required for plans affecting protected European wildlife sites.

Approval of reserved matters

The stage following outline planning permission where details like design and scale are agreed.

Approved inspector

A private sector entity licensed to carry out building regulation inspections.

Aquifer

Underground rock layers that hold water, often protected from contamination by planning controls.

Arbitration

The settlement of a dispute, often regarding land or leases, by an independent third party.

Archaeological interest

Sites containing remains of past human activity protected through the planning process.

Architectural salvage

The practice of reclaiming building materials from historic structures for reuse.

Area of special control

An area where the display of advertisements is more strictly regulated.

Article 4 Direction

A local planning authority order that removes automatic ("permitted development") rights, meaning specific changes to a property or land need a full planning application rather than proceeding automatically. Article 4 Directions are common in Conservation Areas and are often used to control the loss of family housing to houses in multiple occupation (HMOs), or to protect a particular architectural character.

Asset of community value

Land or building nominated by the community for its importance to local social wellbeing.

Assignment

The legal transfer of a lease or interest in land from one party to another.

Associated development

Development directly related to a major infrastructure project, often part of a DCO application.

Assumed liability

A process where a party formally commits to paying the Community Infrastructure Levy.

Assured shorthold tenancy

The most common form of residential tenancy agreement in the private rented sector.

At-grade

Referring to infrastructure or development located at the same level as the existing ground.

Attenuation

The process of managing surface water runoff, often through drainage systems.

Attic conversion

The process of changing a roof space into a habitable room, often under permitted development.

Attorney

A person legally authorized to act on behalf of another in property transactions.

Audited accounts

Financial statements reviewed by professionals, often required for large-scale development schemes.

Authority

The local planning body responsible for processing applications and enforcing regulations.

Authority area

The geographical jurisdiction of a specific local planning authority.

Authorized use

The lawful use of land established through planning permission or historic use rights.

Automated site

A location or building managed using digital or remote technology.

Automatic enforcement

Procedures where planning breaches are addressed through set statutory mechanisms.

Auxiliary structure

A secondary building that supports the primary function of a property.

Availability

The extent to which land is ready and capable of being brought forward for development.

Average speed camera

Traffic enforcement equipment installed as part of highway improvements from planning agreements.

Avoidance

The initial step in the mitigation hierarchy, preventing damage to biodiversity during development.

Awaiting decision

The status of a planning application that has been submitted but not yet determined.

Award

The document issued by a party wall surveyor setting out rights and responsibilities during construction.

Awareness

The requirement for developers to inform neighbors or the public of planning proposals.

Axial development

A building layout designed along a primary axis or central line.

Axiom

A foundational principle or rule used to interpret planning policy.

Axis

A central line of symmetry used in masterplanning and urban design.

Aylsham-style

Refers to specific regional housing design characteristics occasionally noted in local design guides.

Azure-tech

A modern building specification standard related to smart sustainable energy management.