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

Architecture Vogue – Maen Valley

Construction Excellence Southwest Summit 2026

Outline Approval for Three New Homes in St Keyne

Where Design Meets Detail: The Role of Materials in Architecture

CESW Summit 2026

Securing Planning Permission – Greenbank Hotel Falmouth

Energy Consultancy Services at Laurence Associates

Planning Appeals Changes from April 2026

SEC1 Compliance & Energy-Efficient Homes in Cornwall

Regen Planning Conference

Securing Planning Permission – Community Hall Poundstock

Architecture Vogue – Smallridge Bros

Waterside Lookout

A positive appeal decision for Laurence Associates

Architecture Vogue – Sand Dunes

Best of Houzz 2017 Design Award

Building for Growth

Ana Coelho promoted to Senior Chartered Architect

Design and Placemaking PPG out now

Laurence Associates Attending Townsend Landowner Seminar

Appeal Success Near St Ives

The Experts

Property Development Forum

Laurence Associates – Royal Cornwall Show 2024

Grade II Listed Farmstead Planning Success

Rural Enterprise – Helping Rural Business Flourish

Home Renovation Progress Falmouth

Cape Cornwall Club Redevelopment | Laurence Associates

Planning Permission Success for Barn Conversion

Rural Exception Scheme Approved in Perran Downs

Designing for Approval or Designing to Build?

International Women’s Day at Laurence Associates

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

Natural Light

Four Dwellings Approved Following Outline Consent

Why Part T Is Changing Commercial Design More Than You Think

Elmhurst Energy CPD

Construction (Design & Management) Regulations 2015 – March

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

A considered evolution of a familiar form

Supporting the Interior Design Journey Through Architecture

Cornwall Council ‘Call For Sites’

Should I use an Architect?

Seamless Single Storey Extensions That Complement Your Home

Planning Permission Success for Access, Parking & Facilities

Laurence Associates Welcomes New Design Director

Laurence Associates at Kernow Construction Club

Planning Approval for Sauna in Protected Landscape

Class Q Planning Permission

Architecture Vogue – Higher Harlyn

Designing for Legacy, Lifestyle and Longevity

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

National Planning Policy Framework

A Collaborative Approach to Creating Meaningful Spaces

Building for Growth

Barn Conversion Approved West Cornwall

Campsite Certificate and Replacement Dwelling Approval Cornwall

New premises & 30 Years in the business

Agricultural Barn Development Advice

Class Q Conversions: Unlocking the Potential of Agricultural Buildings

Laurence Associates Attending Ashfords Business Breakfast

Vickery Holman Market Review

Unlocking Potential Through Replacement

Housing Schemes in Cornwall That Truly Work for People

Grid Connection Reform and what it means for Renewable Energy Projects

Appeal Success: Caravan Site Approved in Cornwall

Replacement Dwelling Approved Following Class Q Success

Planning Approval Secured for Multi-Generational Home in Feock

Celebrating 20 Years of Leadership – Richard Marsden

Housing Appeal Success in West Cornwall

Cornwall Council Housing Requirement – Laurence Associates

Penzance Business Breakfast

Cornwall Building Regulations Update Event 2026

Progress Update: Shaping a Bespoke Home

Why Do a Self Build?

Community Sponsorship St Just RFC

Laurence Associates to Attend Business Fest

Planning Consent Secured for Methane-Capture Facility

Laurence Associates Expands with New Office in Exeter

Eco development on the sand dunes at Hayle

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

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

3D Modelling an image speaks a thousand words

What is the Community Infrastructure Levy?

Business Cornwall – March 2026

Property Development Forum

How to Find a Building Plot

Tom Evans Promoted to Junior Planner

Seaside Sensation

Building Regulations Drawings: Why Detail Matters

Breaking Ground: New Project Progress

Planning Approved for 5 Unrestricted Rural Homes

Replacement Dwelling in lieu of Class Q

Architecture Vogue – Greenbank Hotel

Grand Designs

Bespoke Architectural Design Process

Town Planner Vacancy – Planning Careers UK

Laurence Associates Welcomes New Planning Director

Laurence Associates – Royal Cornwall Show 2025

Why Involve Landscape Architects in Biodiversity Net Gain Proposals

Planning Committee Success: Replacement Dwelling Approved

Outline Planning Consent Secured for Two New Dwellings

Replacement Dwellings – Pushing the boundaries of Architecture

Happy Easter from Laurence Associates

Current Vacancies – Planner / Senior Planner

Current Vacancies – Town Planners

Laurence Associates attending Kernow Construction Club

Attending Women in Business Breakfast at Truro Golf Club

Planning Appeal Success in Cornwall National Landscape

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

Building Towards a Greener Future: Our Earth Day Commitment

Architecture Vogue – Eyebrid

Architecture Vogue – Enys Hill

Planning Success in Tintagel

Why Do I Need a Professional Consultant’s Certificate?

Neighbourhood Plan Regulation Changes 2026

Creating Flow and Connection Within the Home

River Camel Nutrient Neutrality Update 2026: Bodmin Removed

Laurence Associates at Business Fest South West Westpoint

Change of Use Approved: Takeaway to Residential in Cornwall

Small Housing Schemes

Current Vacancies – Senior Landscape Architect

RIBA Safe & Healthy Environments CPD Completed

Design Appraisals UK | Site Feasibility and Planning Assessments

Conversion in the Countryside: Securing Planning for a Rural Bothy

How to Finance a Self-Build

Appeal Success – Removing Occupancy Condition

Restronguet Point – a room with a view

Affordable Housing Success