CIL is a planning charge used by local authorities on new developments in their catchment areas. 

Money raised via CIL will be used to fund infrastructure – including road schemes, flood defences, telecommunications, park improvements, health facilities, green spaces, schools and leisure spaces – needed to support new homes and businesses in the area. The Government estimates that the levy will raise an additional £1bn-a-year.

Aimed at supporting growth and development, levies are set council-by-council.

CIL is charged as a fixed rate per square metre of new floor space created in the below circumstances:

  • The creation of a new dwelling of any size;
  • The creation of over 100m2 of gross internal floorspace; and
  • New buildings into which people normally go into.

Development is not usually CIL liable if it is:

  • A structure or building into which people do not usually go into, e.g. wind turbines;
  • A change of use with no additional floorspace (if no new dwellings are created);
  • A change of use from a single dwelling house to two or more separate dwellings (although if the development also includes some degree of extension that creates new floorspace it would be CIL liable);
  • For social (affordable) housing;
  • To be used for charitable purposes; or
  • A Self-Build.

As councils set their own rates, the Levy may vary depending on where you’re building. Charging authorities must produce a charging schedule which sets out their levy rates (in pounds per m2), and they must be able to demonstrate how their proposed levy rate [or rates] will support development in the area.

Planning obligations, known as s106 agreements, will continue to address affordable housing and site-specific issues required to make a development acceptable in planning terms.

The Government believes CIL will have a positive economic impact on development across local plan areas, but cautions councils to set levies which support development without threatening the viability of building projects. This balance, it says, is at the heart of the charge setting process.

How is a CIL payment calculated?

CIL is calculated by multiplying the new floorspace that a development will create (in m2) by the relevant CIL rate set out in the Council’s Charging Schedule.

Who is liable to pay the Levy?

Landowners are ultimately liable, but anyone involved in the development may take on the liability.

When is a CIL payment calculated?

For Full, Reserved Matters and Certificate of Lawful Development applications, CIL is calculated when the application is determined.

For Prior Approval Notifications, CIL is calculated at the point at which the development commences (these are developments which are already permitted by way of general consent).

In both cases, all liable parties will receive a CIL Liability Notice advising of the amount of CIL due, and how/when to make payment.

Who is liable to pay the Levy?

Landowners are ultimately liable, but anyone involved in the development may take on the liability.

When is a CIL payment calculated?

For Full, Reserved Matters and Certificate of Lawful Development applications, CIL is calculated when the application is determined.

For Prior Approval Notifications, CIL is calculated at the point at which the development commences (these are developments which are already permitted by way of general consent).

In both cases, all liable parties will receive a CIL Liability Notice advising of the amount of CIL due, and how/when to make payment.

When is CIL payable?

CIL is payable 60 days after the commencement of development.

The liable party is required to submit “Form 6: Commencement Notice” to the relevant Council prior to commencement of development; this will determine the date payment is due.

Depending on the Council, there may be the option to make CIL payments in instalments but this will depend on the amount of CIL payable.

If payment by instalments is permitted, the Commencement Notice enables the Council to calculate the due date of each payment and the liable party (or parties) will be sent a Demand Notice when each instalment becomes due.

Impact of CIL

If you’re already in a CIL charging zone, it’s likely to have been factored in to any development proposals. If you’re in an area where CIL has just come into effect, or is about to, you may wish to contact us to discuss in more detail the implications.

For further information, please call our Planning Manager, Chloe Pitt, on 01872 225 259.  We do not charge for initial consultations and advice.

http://Click here to find out more about the Community Infrastructure Levy in Cornwall.

All posts

Best of Houzz 2017 Design Award

Cornish Replacement Dwelling Submitted for Building Regulations

Small Housing Schemes

Cornwall Building Regulations Update Event 2026

Planning Permission Success for Barn Conversion

Team Attends Michelmore’s Property Development Club in Exeter

Navigating Building Regulations in Cornwall: A Design Led Approach

Securing Planning Permission – Greenbank Hotel Falmouth

Supporting the Interior Design Journey Through Architecture

Porthcothan Site Update: Residential Planning Progress

Understanding the Design Brief Service at Laurence Associates

Current Progress on Site in Falmouth

Laurence Associates Welcomes New Design Director

Cornwall Council Housing Requirement – Laurence Associates

Vickery Holman Market Review

Home Renovation Progress Falmouth

Rural Exception Scheme Approved in Perran Downs

Four Dwellings Approved Following Outline Consent

Replacement Dwellings – Pushing the boundaries of Architecture

Progress Update: Shaping a Bespoke Home

Cornwall Council ‘Call For Sites’

Building for Growth

Regen Planning Conference

Neighbourhood Plan Regulation Changes 2026

Current Vacancies – Senior Landscape Architect

Outline Approval for Three New Homes in St Keyne

Planning Approved for Farmhouse Extension on Bodmin Moor

Outline Planning Consent for Hotel and Restaurant Development in Cornwall

Coastal Home Design in Devon & Cornwall

How to Find a Building Plot

Building for Growth

Why Do a Self Build?

Unlocking Potential Through Replacement

Conversion in the Countryside: Securing Planning for a Rural Bothy

Functional Living in a Contemporary Cornish Home

Planning Approval Secured for Multi-Generational Home in Feock

CESW Summit 2026

International Women’s Day at Laurence Associates

A Collaborative Approach to Creating Meaningful Spaces

Architecture Vogue – Higher Harlyn

Breaking Ground: New Project Progress

Outline Planning Consent Secured for Two New Dwellings

Planning Appeal Success in Cornwall National Landscape

Meet the Laurence Associates Team at Royal Cornwall Show 2026

Securing Five Unrestricted Homes in Mawgan Porth

A Tailored Approach to Conceptual Design

Laurence Associates – Royal Cornwall Show 2024

National Planning Policy Framework

Barn Conversion Approved West Cornwall

Visit Laurence Associates at the Devon County Show This Week

Cape Cornwall Club Redevelopment | Laurence Associates

Meet the Laurence Associates Team at Devon County Show 2026

What does the new Part O of the Building Regulations mean for a new home?

SEC1 Compliance & Energy-Efficient Homes in Cornwall

Celebrating 20 Years of Creativity and Leadership with Jason Pledger

Agricultural Barn Development Advice

Graphisoft UK Awards 2024 – Small Project Of The Year: Under £5 Million

Class Q Conversions: Unlocking the Potential of Agricultural Buildings

Master Planning That Creates Places for the Future

Rural Outbuilding Conversion Secures Planning Consent

Why Do I Need a Professional Consultant’s Certificate?

Committee Success Secures Permission in Principle for New Homes

Eco development on the sand dunes at Hayle

Every Project Has More Than One Story to Tell

Farm Diversification Opportunities in the Southwest

Planning Appeals Changes from April 2026

Laurence Associates to Exhibit at Devon County Show 2026

Considering a Home Extension?

Elmhurst Energy CPD

Celebrating 20 Years of Leadership – Richard Marsden

Planning Appeal Success for Permission in Principle Scheme

Laurence Associates Attends Cornwall Council Planning Agents Forum

James Vivian Promoted to Associate Director

Town Planner Vacancy – Planning Careers UK

Grid Connection Reform and what it means for Renewable Energy Projects

A Guide to Our Planning Application Process

Designing for Approval or Designing to Build?

Waterside Lookout

Certificates of Lawfulness Explained

Natural Light

Architecture Vogue – Enys Hill

Final Days at the Devon County Show for Laurence Associates

Laurence Associates at Business Fest South West Westpoint

Grade II Listed Farmstead Planning Success

Building Towards a Greener Future: Our Earth Day Commitment

Architecture Vogue – Sand Dunes

Planning Approval for Sauna in Protected Landscape

Current Vacancies – Town Planners

Planning Committee Success: Replacement Dwelling Approved

Housing Appeal Success in West Cornwall

Appeal Success for Agricultural Workers Dwelling Near Penzance

Seamless Single Storey Extensions That Complement Your Home

Restronguet Point – a room with a view

3D Modelling an image speaks a thousand words

Cornwall Local Plan Update 2028 and What It Means for Development

Design and Placemaking PPG out now

How to Finance a Self-Build

Town Planner Job Vacancy in Truro | Laurence Associates

Ana Coelho promoted to Senior Chartered Architect

Permission in Principle Success in St Austell

Seaside Sensation

New premises & 30 Years in the business

Laurence Associates Sponsors Rosudgeon and Kenneggy Cricket Club

Appeal Success – Removing Occupancy Condition

Architecture Vogue – Greenbank Hotel

Feock replacement dwelling project overview

Planning Consent Secured for Methane-Capture Facility

Architecture Vogue – Eyebrid

Business Cornwall – March 2026

Self-Build and Custom Build Homes with Laurence Associates

Energy Consultancy Services at Laurence Associates

St Piran’s Day 2026 – Celebrating Cornwall’s Heritage

Change of Use Approved: Takeaway to Residential in Cornwall

Planning Permission Secured in Rock Cornwall

Housing Schemes in Cornwall That Truly Work for People

Non-Material Amendment Success

Construction (Design & Management) Regulations 2015 – March

Tom Evans Promoted to Junior Planner

Laurence Associates Attending Ashfords Business Breakfast

Property Development Forum

Powering the Future: Repowering Wind Turbines Across the UK

From sketch to reality the power of visualisation in design development

Laurence Associates Returning to the Royal Cornwall Show 2026

Successful Appeal Secured on Caravan Use and Building Definition

Architecture Vogue – Maen Valley

Community Sponsorship St Just RFC

Property Development Forum

Permission in Principle Secured for 4 to 9 Dwellings in North Hill

Where Design Meets Detail: The Role of Materials in Architecture

Laurence Associates attending Kernow Construction Club

Why Part T Is Changing Commercial Design More Than You Think

Planning and Designing Padel Courts for the UK’s Fastest Growing Sport

Happy Easter from Laurence Associates

Securing Planning Permission – Community Hall Poundstock

Replacement Dwelling Approved Following Class Q Success

Laurence Associates at Kernow Construction Club

Replacement Dwelling in lieu of Class Q

Designing Homes Shaped by Landscape and Views in Rural Cornwall

Rural Enterprise – Helping Rural Business Flourish

Attending Women in Business Breakfast at Truro Golf Club

Section 73 Approval for Revised Bungalow Scheme in St Erth

Barn Conversions Under Class Q and Class R

Designing for Legacy, Lifestyle and Longevity

Architecture Vogue – Smallridge Bros

Planning Permission Success for Access, Parking & Facilities

Bespoke Architectural Design Process

Laurence Associates Welcomes New Planning Director

Planning Success in Tintagel

The Experts

Celebrating 17 Years of Dedication: James Vivian, Associate Chartered Architectural Technologist

Design Appraisals UK | Site Feasibility and Planning Assessments

Why Involve Landscape Architects in Biodiversity Net Gain Proposals

Laurence Associates Attending Townsend Landowner Seminar

Appeal Success: Caravan Site Approved in Cornwall

A positive appeal decision for Laurence Associates

Laurence Associates prepares for Royal Cornwall Show 2026

Appeal Success Near St Ives

Laurence Associates to Attend Business Fest

Visit Laurence Associates at the Royal Cornwall Show 2026

Grand Designs

A Busy Week of Progress Across the Practice

Laurence Associates Expands with New Office in Exeter

Campsite Certificate and Replacement Dwelling Approval Cornwall

Construction Excellence Southwest Summit 2026

Planning Permission for Community Garden Redevelopment in Newquay

What is the Community Infrastructure Levy?

Should I use an Architect?

Our First Newsletter Is Live | Latest Projects, News & Events

Current Vacancies – Planner / Senior Planner

Planning Permission Secured for Padstow Conservation Area Outbuildings

A considered evolution of a familiar form

River Camel Nutrient Neutrality Update 2026: Bodmin Removed

Class Q Planning Permission

Visit Laurence Associates at the Royal Cornwall Show 2026

Affordable Housing Success

Laurence Associates – Royal Cornwall Show 2025

Planning Approved for 5 Unrestricted Rural Homes

Creating Flow and Connection Within the Home

Penzance Business Breakfast

Sensitive Dwelling Alterations Approved by Council

RIBA Safe & Healthy Environments CPD Completed

Planning changes from April 2026: why expert advice matters more than ever

Building Regulations Drawings: Why Detail Matters