AVR1 vs. AVR3: Which Render Level Does Your Planning Application Actually Need?

When preparing a planning submission that requires Verified Views (also known as Accurate Visual Representations / AVRs), one of the first technical decisions your team will face is selecting the appropriate AVR Level.

The classification framework—established by the Landscape Institute (TGN 06/19) and widely used across UK planning authorities—defines how much architectural detail is rendered into the image.

While the scale ranges from AVR0 (a simple location marker) to AVR3 (a fully photorealistic render), the choice almost always comes down to two options: AVR1 (Wireline / Outline) versus AVR3 (Fully Rendered).

Choosing the wrong level can lead to unnecessary project costs or, worse, a rejection from the Local Planning Authority (LPA) if they feel the visuals lack required detail. Here is what you need to know to make the right call for your scheme.

1 | The Key Differences at a Glance

The fundamental difference lies in what the visual is trying to prove:

• AVR1 tests geometry: "How tall is it, how wide is it, and can you see it from here?"

• AVR3 tests appearance: "What does the facade look like, how do materials react to light, and how does it fit visually into the streetscape?"

2 | When Is AVR1 (Wireline) the Right Choice?

An AVR1 visual overlays a mathematically precise line or semi-transparent block onto baseline site photography. It shows the exact position, height, and outer envelope of the proposed building, but contains no material textures, windows, or lighting effects.

Why Choose AVR1?

• Objective Focus on Massing: In sensitive heritage or townscape assessments, a townscape consultant often prefers AVR1 because it allows planning officers to evaluate scale and silhouette without being distracted by facade design or temporary sunlight conditions.

• Outline Applications: If your architectural design is not fully locked down—for instance, if material palettes are reserved for a later stage—AVR1 is the standard requirement.

• Cost & Speed: Because AVR1 visuals do not require complex material texturing, lighting setups, or high-detail 3D modelling, they can be produced more quickly and cost-effectively.

3. When Is AVR3 (Fully Rendered) Mandatory?

An AVR3 visual represents the highest tier of accuracy and visual fidelity. It incorporates surveyed camera alignment, precise material textures, realistic reflections, daylight simulation, and proposed landscaping.

Why Choose AVR3?

• Full Application Scrutiny: When applying for full planning permission, planning officers and committee members need to judge the qualitative impact of the architecture. An AVR3 visual shows how brickwork, glass reflections, cladding, and planting integrate into the existing surroundings.

• Public Committees & Inquiries: Non-specialists on planning committees often find wirelines difficult to interpret. AVR3 visuals provide a clear, realistic image that is easily understood by committee members, local residents, and inspectors at appeal.

• Sensitivity to Materials: If your planning argument hinges on high-quality design or context-matching materials (e.g., matching local stone in a Conservation Area), AVR3 is essential to demonstrate that quality visually.

4. What About AVR2? (The Middle Ground)

You may also hear townscape consultants mention AVR2 (Shaded / Form & Massing).

An AVR2 visual adds basic shading and opacity to the 3D model, giving a sense of volume, depth, and shadow without applying actual materials or textures. While less common than AVR1 or AVR3, AVR2 is occasionally specified for mid-range views where understanding the building's 3D volume and shadow casting is useful, but fine surface detail is not required.

5. How to Avoid Over- or Under-Specifying

A common mistake developers make is assuming every view in a townscape report needs to be a fully rendered AVR3. On large schemes requiring 10 to 15 verified views, rendering every single viewpoint at AVR3 level can significantly inflate your budget and timeline.

A smarter, industry-standard approach is a blended submission:

By using AVR1 for distant viewpoints where the building is barely visible behind trees or roofs, and reserving AVR3 for key street-level perspectives, you optimize your budget while giving the planning authority exactly what they need.

Summary: Agree the Scope Early

Before commissioning photography or 3D work, your townscape consultant should engage with the Local Planning Authority case officer during pre-application discussions to agree on:

1. The exact camera locations (viewpoints).

2. The required AVR level for each specific view.

Getting this agreed early eliminates guesswork, keeps production costs under control, and ensures your visual evidence is robust, compliant, and ready to support your planning application.