A Design and Access Statement (DAS) is a document submitted with a planning application that explains the design thinking behind a proposed development and how the scheme ensures inclusive access for users.
Rather than simply describing a building, the statement communicates the reasoning behind key design decisions – from site analysis and massing strategy to accessibility and movement through the building.
For architects and designers, a Design and Access Statement is an opportunity to clearly articulate the narrative of a project: how the proposal responds to its context, how the design evolved, and how people will use the space.
Here we explain what a Design and Access Statement is, when it is required, what it should contain, and how to write one clearly and effectively.
What Is a Design and Access Statement?
A Design and Access Statement is a planning document required in many planning applications that demonstrates how a proposed development has been carefully considered in terms of both design quality and accessibility.
It typically accompanies planning drawings and supporting reports and serves two primary purposes:
1. Design explanation
The statement explains the design rationale behind the proposal, including:
- site context
- layout strategy
- scale and massing
- architectural form and materials
2. Accessibility explanation
The statement also demonstrates how the development provides inclusive access for all users, including people with disabilities, ensuring the design aligns with accessibility guidance and planning policy.
In essence, a Design and Access Statement bridges the gap between drawings and design thinking. It allows planning officers, stakeholders, and the public to understand the reasoning behind the project.
This reasoning often begins during the early stages of the architecture design process, where site conditions and project objectives start shaping the architectural concept.
When Is a Design and Access Statement Required?
Not every planning application requires a Design and Access Statement.
Requirements vary depending on the country and local planning authority, but in the UK they are commonly required for:
- major developments
- developments in conservation areas
- listed building applications
- certain residential or mixed-use schemes
For smaller projects, such as minor householder applications, a Design and Access Statement may not be mandatory.
However, even when it is not formally required, producing a concise statement can still strengthen a planning submission by clarifying the design rationale.
Planning authorities want to understand:
- how the proposal responds to the site
- how the building fits within its surroundings
- how people will access and move through the space
These considerations typically emerge during early analysis, often informed by work such as architecture site analysis introduction.
What Should a Design and Access Statement Include?
Although formats vary slightly between planning authorities, most Design and Access Statements follow a broadly consistent structure.
Typical sections include:
1. Site context
Description of the site and its surroundings.
2. Design concept
Explanation of the core architectural idea.
3. Layout
How the building and external spaces are arranged.
4. Scale and massing
How the building relates to neighbouring structures.
5. Appearance and materials
The architectural language of the proposal.
6. Landscape strategy
Treatment of outdoor spaces and public realm.
7. Access and movement
How people enter, circulate, and navigate the development.
Each section should explain not just what the design is, but why decisions were made.
The Design Thinking Behind a Design and Access Statement
A strong Design and Access Statement does more than describe drawings. It explains the logic of the design process.
Most architectural proposals evolve through a sequence of analytical and conceptual stages:
- Understanding the site
- Defining the architectural concept
- Testing spatial organisation
- Refining form and massing
- Developing circulation and accessibility
The underlying design logic may first appear through simple conceptual tools such as architectural diagrams or early spatial studies.
These diagrams often communicate relationships that are difficult to explain with words alone.
For example:
- movement patterns through the site
- relationships between internal spaces
- connections between public and private areas
Many architects begin exploring these relationships using simple tools such as architecture bubble diagrams before refining them into architectural plans.
Typical Structure of a Design and Access Statement
Although the document may vary in length, a clear structure helps ensure the information is easy to follow.
A typical Design and Access Statement may include the following sections.
1. Site and Context
This section describes the physical and urban conditions surrounding the site.
Topics often include:
- surrounding building types
- local character
- neighbouring heights and massing
- landscape features
- existing access points
- views and orientation
A clear site analysis demonstrates that the design has emerged from an understanding of the place.
This analysis often includes drawings such as an architectural site plan to illustrate the relationship between the proposal and its wider context.
2. Design Concept
The concept section explains the main architectural idea behind the project.
This may involve describing:
- the organisational principle of the building
- the relationship between interior and exterior spaces
- the way the building responds to landscape or urban context
Many projects begin with a clear conceptual diagram, sometimes expressed through a simple architecture parti diagram that summarises the design strategy.
For example:
- a courtyard house organised around light
- a building that frames a key view
- a form shaped by prevailing wind or solar orientation
The goal is to communicate the core design logic in a clear and concise way.
3. Layout and Spatial Organisation
The layout section explains how spaces are arranged across the site and within the building.
This often includes:
- positioning of entrances
- relationship between public and private spaces
- outdoor spaces and landscaping
- service areas and circulation routes
Understanding spatial relationships is essential here. Tools such as adjacency diagrams are often used early in the design process to organise functional relationships between spaces.
The Design and Access Statement should demonstrate how these early ideas have translated into the final layout.
4. Scale and Massing
Planning authorities want to understand how the proposed building relates to neighbouring structures.
This section should explain:
- building height
- proportions
- overall massing strategy
- relationship to surrounding buildings
Supporting drawings may include elevations or simple studies of building form.
These ideas are often explored through fundamental principles such as architectural form and composition.
The goal is to demonstrate that the proposal sits comfortably within its context.
5. Appearance and Materials
The appearance section describes the architectural language of the proposal.
This includes:
- façade treatment
- material selection
- colour palette
- window proportions
- detailing strategy
Rather than listing materials, this section should explain how the material choices contribute to the overall architectural identity of the building.
For example:
- responding to local building materials
- reinforcing the building’s massing strategy
- improving durability or sustainability
6. Access and Circulation
Accessibility is a key part of the Design and Access Statement.
The statement must explain how people will:
- approach the building
- enter the development
- move through the spaces
This includes both external access routes and internal circulation.
Movement strategies are often illustrated through a architecture circulation diagram that shows pedestrian and vehicular routes across the site.
Inclusive design considerations may include:
- step-free access
- accessible entrances
- lift access between floors
- clear circulation routes
These elements demonstrate that the design has considered the needs of all users.
How to Write a Design and Access Statement (Step-by-Step)
Writing a Design and Access Statement becomes much easier when it follows a logical structure.
A simple workflow often works best.
Step 1 – Begin with the site
Start by describing the location, context, and surrounding conditions.
Explain what makes the site unique and what constraints or opportunities influenced the design.
Step 2 – Explain the design concept
Next, describe the core architectural idea.
This might relate to:
- responding to landscape
- organising spaces around light or views
- creating a strong relationship between interior and exterior spaces
Keep this explanation clear and concise.
Step 3 – Describe the spatial organisation
Explain how the internal layout works and why spaces are arranged in this way.
Focus on:
- functionality
- circulation
- spatial relationships
Step 4 – Address scale and massing
Describe how the building’s form relates to the surrounding context.
Discuss height, proportions, and building footprint.
Step 5 – Explain the architectural language
Outline the materials, façade treatment, and design character of the building.
This helps planning authorities understand the visual impact of the proposal.
Step 6 – Demonstrate inclusive access
Finally, describe how the design ensures safe and accessible movement for all users.
Accessibility should be considered throughout the design, not treated as an afterthought.
Common Mistakes in Design and Access Statements
Many Design and Access Statements fail because they simply repeat information from drawings rather than explaining the design thinking.
Common mistakes include:
Describing instead of explaining
Saying “the building is two storeys with brick cladding” does not explain why those decisions were made.
Ignoring site context
A good statement clearly shows how the design responds to its surroundings.
Overly technical language
The document should be understandable to planners and stakeholders, not just architects.
Lack of diagrams
Visual explanations often communicate ideas more clearly than text.
Final Thoughts
A well-written Design and Access Statement should clearly communicate how a design has developed and why key decisions were made.
Rather than being treated as a planning formality, it can be an opportunity to demonstrate thoughtful design thinking and contextual awareness.
By explaining the site conditions, the architectural concept, spatial organisation, and accessibility strategy, the statement helps planning authorities understand how the proposal contributes positively to its environment.
When approached carefully, the Design and Access Statement becomes more than a planning requirement – it becomes a concise narrative of the architectural process.
