TrustMark-registered, Federation of Master Builders members<\/a>, we put all of it in writing before we start.<\/p>\nLoft conversion costs in Oxford \u2014 FAQs<\/h2>\nHow much does a loft conversion cost in Oxford in 2026?<\/h3>\n
Most projects fall between \u00a325,000 and \u00a3100,000. Rooflight conversions start around \u00a325,000; a typical rear dormer with a good finish lands between \u00a345,000 and \u00a375,000; mansards run from \u00a365,000 upwards.<\/p>\n
Is a loft conversion cheaper than moving house?<\/h3>\n
Almost always, once you account for stamp duty, fees and moving costs \u2014 and you keep the street, the school catchment and the garden you already have.<\/p>\n
Do I need planning permission?<\/h3>\n
Usually not, if you stay within permitted development limits \u2014 but conservation areas, Article 4 directions, flats and listed buildings change the answer. Building regulations approval is required in every case.<\/p>\n
What’s the cheapest type of loft conversion?<\/h3>\n
A rooflight (Velux) conversion, because the roof structure stays as it is. It’s only viable with around 2.2m of existing headroom at the ridge.<\/p>\n
Thinking about your loft?<\/strong> We’ll visit, look at the roof, and give you a straight answer about what’s possible and what it’ll cost \u2014 no obligation. Get in touch<\/a> or call 01865 420063. You can read more about our approach on our loft conversions in Oxford<\/a> service page.<\/p>\n