Last edited 06 Mar 2026

Construction industry acronyms - L

This article presents a list of construction industry acronyms beginning with 'L'.

For other letters click on the list below:

A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

[edit] L

L - Longways Clearance

L&D - Learning and Development

L/L - Low Level

L6s - Lean Six Sigma

LA - Local Authority

LAA - Local Authority Associations

LAAPS - Local Authority Accident Prevention and Safety Services

LaaS - Light as a Service

LABC - Local Authority Building Control

LABSS - Local Authority Building Standards Scotland

LABV - Local Asset Backed Vehicle

LAC - Local Authority Circular

LAD - Local Authority Delivery (scheme)

LADD - Lifetime Average Daily Dose

LADS - Linear Asset Decision Support

LADs - Liquidated and Ascertained Damages

LAEP - Local Area Energy Planning

LAES - Liquid Air Energy Storage

LAF - Local Access Forum

LAI - Leaf Area Index

LAPC - Local Air Pollution Control

LAPPC - Local Air Pollution and Prevention Control

LAPPC - Local Authority Pollution Prevention And Control

LAQM - Local Air Quality Management

LAQN - London Air Quality Network

LASER - Light Amplification By Stimulated Emission of Radiation

LASP - Local Authorities Strategic Programme

LASS - Leisure Accident Surveillance System

LATS - Local authority trading standards

LAU - Local Authority Unit

LB - Listed Building

LB - Load-Bearing

LBA - Letter Before Action

LBA - London Boroughs Association

LBAP - Local Biodiversity Action Plan

LBC - Listed Building Consent

LBCO - Listed Building Consent Order

LBHPA - Listed Building Heritage Partnership Agreement

LBSM - London Building Stock Mode

LBTT - Land and Building Transaction Tax

LC - Lead Consultant

LC - Licence Condition

LC - London Clay

LC3 - Limestone calcined clay cement

LCA - Landscape Character Area

LCA - Lifecycle Assessment

LCA - Low Cost Alternative

LCCE - Life Cycle Carbon Emissions

LCD - Land Drainage Consent

LCD - Liquid Crystal Display (glazing)

LCF - Landfill Communities Fund

LCF - Levy Control Framework

LCFS - Life Critical Fire Safety

LCFS - EWS - Life Critical Fire Safety External Wall System.

LCI - Life Cycle Inventory

LCLIP - Local Climate Impacts Profile

LCM - Lighting Control Module

LCN - London Cycle Network

LCN+ - London Cycle Network Plus

LCOE - Levelised Cost of Electricity / Energy

LCT - Landscape Character Type

LCV - Light-Commercial Vehicle

LD - Land Division

LD - Latent Defect

LD - Lead Designer

LDA - Landscape Design Approach

LDA - Linear Photodiode Array

LDA - London Development Agency

LDC - Lawful Development Certificate (/Certificate of Lawful Development)

LDD - Local Development Document

LDEDCA - Local Democracy, Economic Development and Construction Act 2009 -

LDES - Long duration electricity storage

LDF - Local Development Framework

LDF - Low Density Fibreboard

LDG - List of Dangerous Goods

LDI - Latent Defects Insurance

LDO - Local Development Order

LDPE - Low Density Polyethylene (bins, pipes & fittings)

LDs - Liquidated and Ascertained Damages

LDS - Local Development Scheme.

LDV - Leyland DAF van

LDV - Light Duty Vehicle

LDV - Light-Duty Vehicle

LEA - Local Education Authority

LEA - Local Enterprise Agency

LEAP - Locally Equipped Area Of Play

LEAV - Lower Exposure Action Value

LCOH - Levelised cost of heat

LED - Light-Emitting Diode

LED - Low Energy Demand

LEED - Leadership in Energy and Environmental Design

LEL - Lower Explosive Limit

LEL - Lower Exposure Limit

LEMP - Local Environmental Management Plan

LENDERS Project - Levering Economics for New Drivers to Energy Reduction & Sustainability Project

LENI - Lighting Energy Numerical Indicator

LEP - Local Energy Partnership

LEP - Local Enterprise Partnerships

LEP - Lowest Evaluated Price

LEPC - Lifts, Escalators and Passenger Conveyors

LEQ - Equivalent Continuous Sound Level

LEV - Local Exhaust Ventilation

LeSS - Large-Scale Scrum

LETI - London Energy Transformation Initiative

LEV - Local Exhaust Ventilation

LEZ - Low Emission Zone

LF - Load Factor

LFB - London Fire Brigade

LFDCA - London Fire and Civil Defence Authority

LFL - Lower Flammability Limit

LFRMS - Local Flood Risk Management Strategy

LFS - Labour Force Survey

LFSM - Limited Frequency Sensitive Mode

LGA - Local Government Area

LGA - Local Government Association

LGA - Local Government Authority

LGBCE - Local Government Boundary Commission For England

LGBT - Lesbian, Gay, Bi and Trans.

LGS - Local Geological Site

LGS - Local Geological Site (Formerly Regionally Important Geological Sites)

LGSC - Landlord's Gas Safety Certificate

LGSF - Light Gauge Steel Frame

LGTF - Local Government Task Force

LGV - Light Goods Vehicle

LHA - Local Highway Authority

LHDG - London Housing Design Guide

LHEES - Local Heath and Energy Efficiency Strategies

LHPC - Low Heat Portland Cement

LHS - Left Hand Side

LHV - Lower Heating Value

LiDAR - Light Detection And Ranging

LiDAR - Light Detection And Ranging - or a combination of 'light' and 'radar'

LIF - Laser Induced Fluorescence

LIFE - Lotic

LIFE - Lotic-invertebrate Index for Flow Evaluation

LIFO - Last In-First Out

LIFT - Local Improvement Finance Trust

LIGS - locally important geological site

LIL - Local Interest List

LIP - Local Implementation Plan

LIPF - Local Innovation Partnerships Fund

LISI - London Invasive Species Initiative

LL - Live Load

LL - Low Level

LLA - Local Landscape Area.

LLAU - Limits Of Land To Be Acquired Or Used

LLBCO - Local Listed Building Consent Order

LLC - Limited Liability Corporation

LLCF - Long-Lived Climate Forcers

LLES - Large Scale Long Duration Electricity Storage

LLFA - Lead Local Flood Authority

LLGHG - Long-Lived Greenhouse Gases

LLL - Lifelong Learning

LLMI - Local Labour Market Intelligence

LLP - Limited Liability Partnership

LLU SMPF - Local loop unbundling shared metallic path facility

LMD- Light Maintenance Depot

LMFBR - Liquid Metal Fast Breeder Reactor

LMP - Landscape Management Plan

LMP - Locational marginal pricing

LNAPL - Light Non-Aqueous Phase Liquid

LNG - Liquefied Natural Gas

LNHS - London Natural History Society

LNR - Local Nature Reserve

LNR - Local Nature Reserves

LNRS - Local Nature Recovery Strategy

LO - London Overground

LO - Low

LOA - Land Ownership Area

LOAEL - Lowest Observed Adverse Effect Level

LOCAE - List of Classified and Authorised Explosives

LOd - Level of Detail

LOD - Level of Development (aka BIM)

LOD - Limit of Detection

LOEL - Lowest Observed Effect Level

LOF - Learnings Outcomes Framework

LOI - Letter of Intent

LoL - Limitation of Liability

LoLE - Loss of Load Expectation

LOLER - Lifting Operations and Lifting Equipment Regulations

LON - Light Obstruction Notice

LoR - Letter of Reliance

LOR - Light Output Ratio

LOS - Leigh Ornithological Society

LOTI - Large Onshore Transmission Investment

LOTO - Lock Out Tag Out

LOX - Liquid Oxygen

LP - Lamp Post

LP - Legality of Production

LP - Lighting Panel / Lamp Post

LP - Limited Partnership

LP - Liquefied Petroleum

LP - Local Plan

LP - Low Pressure

LPA - Local Planning Authority

LpAeq - Day Equivalent Continuous Sound Pressure Level [Day

LpAeq - Equivalent Continuous A

LpAeq - Night Equivalent Continuous Sound Pressure Level [Night

LpAeq T - Equivalent Continuous A

LpAFmax - Maximum A

LpASmax - Maximum A

LPC - Loss Prevention Council

LPCB - Loss Prevention Certification Board

LPD - Lighting Power Density.

Lpeq - Equivalent Continuous Sound Pressure Level

LPG - Liquefied Petroleum Gas

LPS - Last Planner System

LPS - Loss Prevention Standard

LPT - Local Property Tax

LPT1 - London Power Tunnels Phase 1

LPT2 - London Power Tunnels Phase 2

LRAP - London Rivers Action Plan

LRFD - Load and Resistance Factor Design

LRT - Light Rapid Transit

LRV - Light Rail Vehicle

LRV - Light Reflectance Value

LS - Light Switch

LSAT - Land Surface Air Temperature

LSD - Limit State Design

LSF - Light Steel Frame

LSF - Low Smoke or Fumes

LSL - Laminated strand lumber

LSOA - Lower Super Output Area

LSP - Local Strategic Partnership

LSP - Loss Prevention Standard.

LSS - Load Scaling Sensitivity

LSSB - Large Single Storey Building

LST - Low Surface Temperature (radiators)

LSV - Lockshield Valve

LT - Light Transmittance value of glazing (Natural Light Value)

LTA - Lost Time Accident

LTC - Loan To Cost ratio

Ltd - Limited Liability Company

LTEL - Long Term Exposure Limit.

LTHW - Low Temperature Hot Water

LTI - Lost Time Incident

LTIS - Long-term investment scenarios

LTP - Local Transport Plan

L-TS - Long-Term Storage

LTSF - Local Track Selection Factor

Ltsrs - Long Term Safety Reviews

LTT - Lockout Tagout Try

LTV - Loan To Value ratio

LU - London Underground

LUCID - Local Urban Climate Model and the Intelligent Development of Cities

LUL - London Underground Limited

LULUCF - Land Use Land Use Change And Forestry

LUPI - Land Use Pollution Index

LUST - Land Use Surface Type

LUSTER - London Urban Sub-Terrain Energy Recovery

LV - Large Vegetation

LV - Low Voltage

LV - Low Volume

LVA - Landscape and Visual Appraisal.

LVD - Low Voltage Directive

LVDC - Low-Voltage Direct Current

LVDMAP - Low Value Disputes Model Adjudication Procedure

LVDP - Low Value Disputes Procedure

LVDT - Linear Variable Differential Transducer

LVIA - Landscape and Visual Impact Assessment

LVL - Laminated veneer lumber

LVMF - London View Management Framework

LVT - Luxury Vinyl Tiles

LWA - Lightweight Aggregate

LWD - Large Woody Debris

LWPC - Lowest Working Pressure Component

LWR - Light Water Reactor

LWS - Local Wildlife Site

LWSC - Long Wave Shading Coefficient

LZC - Low or Zero Carbon (Technologies)

LZCGT - Low or Zero-Carbon Generating Technology

LZCT - Low or Zero Carbon Technology

Designing Buildings Anywhere

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