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

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

Rural Exception Scheme Approved in Perran Downs

Replacement Dwellings – Pushing the boundaries of Architecture

Grand Designs

National Planning Policy Framework

Elmhurst Energy CPD

Designing for Legacy, Lifestyle and Longevity

Laurence Associates – Royal Cornwall Show 2025

Four Dwellings Approved Following Outline Consent

Housing Schemes in Cornwall That Truly Work for People

Seaside Sensation

Vickery Holman Market Review

Planning Permission Success for Barn Conversion

Outline Planning Consent for Hotel and Restaurant Development in Cornwall

Class Q Planning Permission

A Collaborative Approach to Creating Meaningful Spaces

Barn Conversion Approved West Cornwall

Current Vacancies – Planner / Senior Planner

Cornwall Building Regulations Update Event 2026

Building for Growth

Why Do a Self Build?

Outline Approval for Three New Homes in St Keyne

Laurence Associates – Royal Cornwall Show 2024

Cornwall Council Housing Requirement – Laurence Associates

Breaking Ground: New Project Progress

Attending Women in Business Breakfast at Truro Golf Club

Planning Appeals Changes from April 2026

Bespoke Architectural Design Process

Outline Planning Consent Secured for Two New Dwellings

Replacement Dwelling in lieu of Class Q

Why Part T Is Changing Commercial Design More Than You Think

Cornwall Council ‘Call For Sites’

Current Vacancies – Senior Landscape Architect

Laurence Associates Welcomes New Design Director

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

Town Planner Vacancy – Planning Careers UK

Planning Approval Secured for Multi-Generational Home in Feock

Construction Excellence Southwest Summit 2026

Progress Update: Shaping a Bespoke Home

Architecture Vogue – Greenbank Hotel

Why Involve Landscape Architects in Biodiversity Net Gain Proposals

Agricultural Barn Development Advice

Planning Permission Secured in Rock Cornwall

Construction (Design & Management) Regulations 2015 – March

Planning Approval for Sauna in Protected Landscape

Laurence Associates Attending Ashfords Business Breakfast

Supporting the Interior Design Journey Through Architecture

A positive appeal decision for Laurence Associates

Design and Placemaking PPG out now

Laurence Associates Welcomes New Planning Director

Planning Committee Success: Replacement Dwelling Approved

Rural Enterprise – Helping Rural Business Flourish

Laurence Associates attending Kernow Construction Club

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

3D Modelling an image speaks a thousand words

Class Q Conversions: Unlocking the Potential of Agricultural Buildings

Business Cornwall – March 2026

Creating Flow and Connection Within the Home

Laurence Associates at Kernow Construction Club

International Women’s Day at Laurence Associates

Waterside Lookout

Why Do I Need a Professional Consultant’s Certificate?

Natural Light

How to Find a Building Plot

Grid Connection Reform and what it means for Renewable Energy Projects

Conversion in the Countryside: Securing Planning for a Rural Bothy

Campsite Certificate and Replacement Dwelling Approval Cornwall

Planning Appeal Success in Cornwall National Landscape

Planning Success in Tintagel

How to Finance a Self-Build

Building for Growth

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

Grade II Listed Farmstead Planning Success

Appeal Success – Removing Occupancy Condition

A considered evolution of a familiar form

Architecture Vogue – Enys Hill

Tom Evans Promoted to Junior Planner

Current Vacancies – Town Planners

Affordable Housing Success

New premises & 30 Years in the business

Appeal Success Near St Ives

Happy Easter from Laurence Associates

Home Renovation Progress Falmouth

Securing Planning Permission – Community Hall Poundstock

SEC1 Compliance & Energy-Efficient Homes in Cornwall

A Guide to Our Planning Application Process

Planning Approved for 5 Unrestricted Rural Homes

Should I use an Architect?

Design Appraisals UK | Site Feasibility and Planning Assessments

Laurence Associates to Attend Business Fest

River Camel Nutrient Neutrality Update 2026: Bodmin Removed

The Experts

Housing Appeal Success in West Cornwall

Penzance Business Breakfast

Planning Permission Success for Access, Parking & Facilities

Building Towards a Greener Future: Our Earth Day Commitment

Laurence Associates at Business Fest South West Westpoint

Unlocking Potential Through Replacement

Architecture Vogue – Eyebrid

Neighbourhood Plan Regulation Changes 2026

Building Regulations Drawings: Why Detail Matters

From sketch to reality the power of visualisation in design development

Laurence Associates Expands with New Office in Exeter

Replacement Dwelling Approved Following Class Q Success

Laurence Associates Attending Townsend Landowner Seminar

Architecture Vogue – Higher Harlyn

Architecture Vogue – Sand Dunes

Architecture Vogue – Maen Valley

Small Housing Schemes

Architecture Vogue – Smallridge Bros

Designing for Approval or Designing to Build?

Property Development Forum

RIBA Safe & Healthy Environments CPD Completed

Community Sponsorship St Just RFC

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

Cape Cornwall Club Redevelopment | Laurence Associates

Regen Planning Conference

Property Development Forum

Restronguet Point – a room with a view

CESW Summit 2026

Where Design Meets Detail: The Role of Materials in Architecture

Celebrating 20 Years of Leadership – Richard Marsden

Energy Consultancy Services at Laurence Associates

Ana Coelho promoted to Senior Chartered Architect

Appeal Success: Caravan Site Approved in Cornwall

Eco development on the sand dunes at Hayle

Planning Consent Secured for Methane-Capture Facility

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

Seamless Single Storey Extensions That Complement Your Home

Best of Houzz 2017 Design Award

Change of Use Approved: Takeaway to Residential in Cornwall

What is the Community Infrastructure Levy?

Securing Planning Permission – Greenbank Hotel Falmouth