Our Approach to Development Appraisals

At AY-PL.co.uk, we take a practical and commercially focused approach to site feasibility.

Rather than simply reviewing planning policy, we assess the site from both a planning and development perspective, considering what can realistically be delivered and whether the project is likely to make commercial sense.

Our assessments combine planning analysis, design review, development experience, and market awareness to provide clear recommendations tailored to the specific site.

Every site is unique, which is why we avoid generic reports and instead provide bespoke advice based on the individual characteristics of the property and its surrounding context.

What We Assess

Our feasibility studies typically begin with a detailed review of the site and its surroundings.

This includes an assessment of:

• Site size, shape, and layout

• Existing buildings and structures

• Access arrangements and highways considerations

• Local planning policies

• Site designations and constraints

• Neighbouring properties and amenity impacts

• Heritage and conservation considerations

• Flood risk and environmental constraints

• Potential development density

• Local development precedents

We review planning history where relevant and consider recent decisions in the area to understand how the local planning authority is likely to approach future proposals.

This allows us to identify opportunities and constraints at an early stage and develop realistic planning strategies.

Exploring Development Options

A key part of our service is exploring alternative development scenarios.

Many sites have multiple potential development routes, and understanding these options is often critical to maximising value.

Depending on the nature of the site, we may explore:

Residential New-Build Development

For vacant plots, infill sites, garden plots, and redevelopment opportunities, we assess the potential for new residential units and identify realistic development capacities.

This may include detached houses, semi-detached dwellings, terraces, apartment buildings, or mixed residential schemes depending on local planning policy and site context.

Conversion and Change of Use Opportunities

We have extensive experience assessing the conversion of existing buildings into residential accommodation.

Examples include:

• Office-to-residential conversions

• Commercial-to-residential schemes

• House-to-flats conversions

• HMO developments

• Mixed-use redevelopment projects

• Permitted Development opportunities

Our assessment considers both planning and technical constraints to determine the most viable approach.

Extensions and Intensification

For existing residential properties, we assess opportunities for:

• Rear and side extensions

• Roof extensions

• Loft conversions

• Additional residential units

• Garden development opportunities

• Subdivision of larger properties

Where appropriate, we identify ways to increase development value while remaining compliant with planning policy.

Planning Strategy Advice

Understanding planning policy is essential to successful development.

As part of our feasibility service, we provide an initial planning assessment covering:

• Local planning policy considerations

• National planning guidance

• Design expectations

• Potential planning risks

• Likelihood of approval

• Recommended planning route

We identify the key issues that are likely to influence a planning decision and provide recommendations on how these can be addressed.

Where a proposal may face challenges, we explain these clearly and suggest potential solutions or alternative development options.

Development Costs and Budget Guidance

Planning potential alone does not determine whether a project is viable.

A development must also make financial sense.

As part of our feasibility assessment, we provide guidance on likely project costs, helping clients understand the overall financial implications of a scheme.

Depending on the level of assessment required, this may include:

• Estimated construction costs

• Professional consultant fees

• Planning application costs

• Building Regulations costs

• Structural engineering costs

• Party Wall considerations

• Utility connection costs

• Contingency allowances

This information allows clients to assess whether a development opportunity is worth pursuing before committing further resources.