<h3>Executive Summary</h3> <p><strong>15, Halton Hey, Whiston</strong> - an unmodernised semi-detached house with a mature, productive rear garden and a planning history that includes an approved two-storey side extension (ref 25/00674/FUL, 2025).</p> <p><strong>Extension Potential:</strong></p>
<ul> <li><strong>Rear extension (single-storey):</strong> £30,983 - £51,030 for approximately 15m². A modest 3m - 4m deep rear addition is the strongest remaining ground-floor opportunity, with a useful neighbour precedent at #14 Halton Hey (approved 2005). Up to 3m depth may qualify as Permitted Development.</li> <li><strong>Loft conversion:</strong> £33,756 - £55,598 for approximately 13.5m².
What this report covers for 15 Halton Hey
- Kitchen PotentialSee your kitchen restyled in four directions, with real cost bands.
- Bathroom PotentialWet room, freestanding bath or walk-in shower; see each one in your space.
- Solar & Heat PumpSolar survey for your exact roof, plus a heat pump verdict for your house; the full energy story in one report.
- Loft Conversion FeasibilityDormer, hip-to-gable or L-shape; what your loft can become and what it would cost.
- Extension FeasibilityRear, side-return and wraparound options for your plot, with planning verdicts.
- Garden TransformationOutdoor living, lighting, structures and a garden room in your actual garden.
- Driveway & FrontageDriveway, front door, render and planting; the whole street-side restyled for your house.
- Windows & GlazingSash, casement, anthracite or heritage; every window on your house, rethought with the planning rules.
- Roof PotentialRe-roof, restore the chimney, add a rooflight; what your roof needs and what it could become.