By Charrette Law Firm Editorial Team · Updated 2026-07-26
Section 106 agreements, established under the Town and Country Planning Act 1990, bind developers and local planning authorities to legally enforceable obligations tied to a specific site. Detailed in Development Agreements Explained for Property Developers. These arrangements mitigate a development’s local impact, often requiring affordable housing, infrastructure contributions, or highway improvements before planning permission proceeds. Developers must budget for these obligations early, since costs directly affect project viability and site acquisition decisions.
Key Takeaways
Section 106 Agreements operate under the Town and Country Planning Act 1990 legislation framework.
Local Planning Authorities require Section 106 Agreements before granting planning permission for development projects.
These legally binding agreements bind local authorities, landowners, and developers to specific obligations.
Section 106 Agreements impose planning obligations on developers seeking commercial property development or redevelopment.
Section 106 Agreements operate under the Town and Country Planning Act 1990 legislation framework.
Local Planning Authorities require Section 106 Agreements before granting planning permission for development projects.
These legally binding agreements bind local authorities, landowners, and developers to specific obligations.
Section 106 Agreements impose planning obligations on developers seeking commercial property development or redevelopment.
What Should Developers Know Before Negotiating Section 106?
Section 106 agreements function as a core mechanism within the UK planning system. No scheme with notable local impact bypasses this stage. cite-1 Developers who misunderstand the process risk delayed permissions, unbudgeted costs, and stalled financing timelines. Preparation, not persuasion, determines whether negotiations move quickly or drag for months.
The legal authority behind these obligations sits in the Development Agreements Explained framework established by the Town and Country Planning Act 1990. That statute permits local planning authorities to bind developers. Landowners to legally enforceable terms designed to offset a development’s impact. Any developer entering negotiation should treat the agreement as a contract with real financial Legal weight, not a formality attached to consent.
Who Actually Signs a Section 106 Agreement?
A Section 106 agreement is a contract between the local authority and whichever party holds an interest in the land. cite-1 That party may be the landowner, the developer, or the applicant named on the planning submission. Development finance managers should confirm early which entity will carry the signed obligation. Lenders often require clarity on this point before releasing funds.
Before entering talks, developers should:
Identify every party with a legal interest in the site.
Confirm the statutory basis for any requested obligation under the 1990 Act.
Treat draft terms as binding once signed, not as negotiable indefinitely.
Identify every party with a legal interest in the site.
Confirm the statutory basis for any requested obligation under the 1990 Act.
Treat draft terms as binding once signed, not as negotiable indefinitely.
How Are Section 106 Obligations Calculated And Negotiated?
Local authorities size a Section 106 obligation to the strain a scheme would otherwise place on public services, infrastructure, or the environment. cite-1 Without such obligations, a development risks overloading schools, roads, or drainage systems that already operate near capacity. Calculation begins with an assessment of that projected strain, not a fixed formula applied uniformly across sites.
Commercial planning consents sit within a regulated system designed to align new development agreements with local and national policy, environmental standards, and community impact. cite-2 This regulatory framework forms the baseline from which negotiated terms emerge. Developers should expect councils to reference adopted local plans and infrastructure delivery schedules when framing initial obligation requests.
Two statutory tests govern what a council can lawfully demand:
Necessity test — the authority must show the obligation is necessary to make the development acceptable in planning terms.
Direct relationship test — the obligation must relate directly to the development it attaches to, not to unrelated borough-wide priorities.
Negotiation leverage sits within these two tests. A developer challenging an obligation that fails either standard has strong grounds to push back before signing.
What Determines Whether A Section 106 Obligation Is Reasonable?
Reasonableness rests on the necessity and direct-relationship tests described above. An obligation unconnected to the scheme’s actual impact, or one exceeding what makes the development acceptable, falls outside lawful scope. Project managers evaluating a site should request the council’s supporting evidence for each requested contribution before accepting terms.
What Mistakes Delay Section 106 Agreement Approval?
Treating commercial planning permission as a rubber-stamp formality causes the most common delays. Developers altering or building commercial premises often assume approval will follow automatically, without accounting for the regulated process behind it. This assumption slows negotiations before they even begin.
A second mistake involves skipping preparation on planning obligations altogether. Developers who fail to become familiar with Section 106 requirements risk underestimating how these obligations reshape their proposals, from contribution amounts to phasing conditions. Reviewing precedent agreements and consulting development agreements explained by planning counsel early avoids costly surprises later in the process.
Why does negotiation drag on for months?
Negotiation stalls when developers treat the Local Planning Authority’s request for a Section 106 Agreement as an afterthought rather than an expected step. Authorities may require this agreement before granting consent, so timelines built without it inevitably slip.
To reduce delay, developers should:
Confirm early whether the local authority anticipates a Section 106 requirement.
Budget negotiation time into the project schedule, not after it.
Engage planning obligation specialists before submitting the application.
Confirm early whether the local authority anticipates a Section 106 requirement.
Budget negotiation time into the project schedule, not after it.
Engage planning obligation specialists before submitting the application.
Section 106 agreements represent a fundamental mechanism through which local authorities secure developer contributions toward community infrastructure and mitigation measures. By establishing clear obligations tied to planning permissions, these agreements balance development aspirations with public interest requirements. Understanding their scope, negotiation parameters, and implementation timelines proves essential for developers seeking efficient project delivery. Engaging qualified legal counsel early in the planning process enables developers to navigate Section 106 requirements strategically, ensuring compliance while protecting project viability and financial performance.
FAQ
What are Section 106 agreements?
Section 106 agreements are legally enforceable obligations under the Town and Country Planning Act 1990 that bind developers and local planning authorities to specific site-related terms, often requiring affordable housing, infrastructure contributions, or highway improvements before planning permission proceeds. cite-1
Who signs a Section 106 agreement?
The contract binds the local authority and whichever party holds a legal interest in the land—landowner, developer, or applicant. Finance managers confirm this early, since lenders require clarity before releasing funds.
How do these agreements affect property developers?
Developers face direct financial impact, since obligation costs affect project viability and site acquisition decisions. Local authorities size obligations to the strain a scheme places on public services, infrastructure, or the environment.
