Property potential report
3-bedroom Semi-detached
<h3>Executive Summary</h3> <p><strong>49 Stoney Ln, Rainhill, Prescot L35 9JU, UK</strong> - Suburban house on a 212.7m² plot with a current built footprint of approximately 77.78m² (36.6% site coverage), leaving meaningful scope for extension.</p> <p><strong>Extension Potential:</strong></p> <ul> <li><strong>Rear extension</strong> - Up to 5.5m × 3m (16.5m²) under Permitted Development, or deeper via prior approval; estimated cost £42,000 - £75,000; 80 - 90% success rate within PD limits.</li> <li><strong>Side extension</strong> - Single-storey, approximately 2.5m × 5m (12.5m²), subject to confirming available side space; estimated cost £35,000 - £68,000; 70 - 85% success rate.</li> <li><strong>Loft conversion</strong> - Rear dormer of approximately 5m × 3m adding 18 - 28m², subject to roof height survey; estimated cost £42,000 - £72,000; 75 - 90% success rate within PD limits.</li> </ul> <p><strong>Planning Status:</strong> No planning applications, decisions or precedents are recorded for this property, representing a clean baseline with no prior complications to consider.</p> <p><strong>Recommendation:</strong> A rear kitchen-diner extension of 5.5m × 3m is the most straightforward first move - it falls within standard Permitted Development limits, avoids reducing the garden disproportionately on a modest plot, and delivers practical everyday living space at an estimated cost of £42,000 - £75,000.</p> <p class="text-sm text-gray-600"><em>Note: Some extensions may qualify for permitted development rights, allowing work without full planning permission. Confirm property type (detached, semi-detached or terraced) before finalising any design, as this affects permitted rear projection limits. See full report for details.</em></p>