# LoftConversionQuotes > Free UK loft-conversion price guide and matching service. Homeowners get an indicative price in 60 seconds, then compare quotes from up to 4 vetted FMB or TrustMark accredited builders. LoftConversionQuotes (trading name of MRGN VENTURES LTD) is a UK lead-generation site for homeowners considering a loft conversion. It combines an interactive price calculator, a planning-permission checker, plain-English guides covering cost / planning / building regs, and a city-by-city directory of price ranges and conversion types. All pricing on the site is calculated from a single transparent engine documented at /methodology — there is no editorial padding, no invented case studies, and no anonymous reviewer biographies. The publishing organisation is MRGN VENTURES LTD, a UK-registered company with registered address 71-75 Shelton Street, Covent Garden, London, United Kingdom, WC2H 9JQ; the site does not employ builders and does not run its own vetted panel. ## High-relevance city pages These four pages have the deepest local data (housing stock, conservation policy, planning quirks) and are the best entry points for UK loft-conversion questions: - [Loft conversions in Sheffield](/loft-conversion/sheffield): S postcodes, stone-built terraces and Peak District-fringe semis, Nether Edge conservation rules. - [Loft conversions in Glasgow](/loft-conversion/glasgow): G postcodes, sandstone tenements vs. Bearsden semis, Scottish building-warrant process. - [Loft conversions in Manchester](/loft-conversion/manchester): M postcodes, 1930s hipped semis in South Manchester, Didsbury/Chorlton conservation. - [Loft conversions in Bradford](/loft-conversion/bradford): BD postcodes, Saltaire UNESCO WHS, back-to-back terrace limits. ## Pages - [Home](/): Loft conversion price calculator and overview. - [How it works](/how-it-works): The 4-step quote and matching process. - [Planning checker](/planning-checker): Permitted Development vs full planning, by property type. - [Locations](/locations): Index of UK cities and neighbourhoods we cover. - [Guides hub](/guides): Evergreen guides on cost, planning, regs and timelines. - [About](/about): Editorial standards, who we are, how we make money. - [Methodology](/methodology): Where our cost ranges come from, sources, update cadence, conflicts of interest. - [FAQ](/faq): Common homeowner questions about loft conversions and our service. - [Contact](/contact): Get in touch with the editorial team. ## Cornerstone guides - [Loft conversion cost UK 2026](/guides/loft-conversion-cost-uk-2026): Up-to-date cost ranges by conversion type and region. - [Loft conversion timeline](/guides/loft-conversion-timeline): Week-by-week build schedule. - [Permitted Development for lofts](/guides/permitted-development-loft): What you can build without planning permission. - [Building Regs vs planning](/guides/building-regs-vs-planning-loft): The two approval regimes explained. - [Party Wall Act for loft conversions](/guides/party-wall-act-loft-conversions): When you need a notice and how to serve it. - [Loft staircases and Part K](/guides/loft-staircase-part-k): Pitch, going, rise, headroom and the 1.9m loft concession. - [Loft insulation and Part L](/guides/loft-insulation-part-l): U-values and rafter-level build-ups. - [Velux loft conversion cost](/guides/velux-loft-conversion-cost): Cheapest rooflight conversion priced. - [Dormer loft conversion cost](/guides/dormer-loft-conversion-cost): Most common UK conversion costed in detail. - [Hip-to-gable loft conversion cost](/guides/hip-to-gable-loft-conversion-cost): £53k–£98k inc VAT, with a full cost breakdown for 1930s semis. - [L-shaped dormer cost](/guides/l-shaped-dormer-cost): Victorian terrace double-dormer pricing. - [Mansard loft conversion cost](/guides/mansard-loft-conversion-cost): Premium full-rebuild conversions. - [Dormer on a 1930s semi](/guides/dormer-on-1930s-semi): Roof geometry, Class B volume and a worked floor plan. ## Cost by property type - [1930s semi](/loft-conversion-cost/1930s-semi): Hip-to-gable plus rear dormer, the UK's most common case. - [1960s–70s semi](/loft-conversion-cost/1960s-70s-semi): Trussed-roof era, structural premium explained. - [Victorian terrace](/loft-conversion-cost/victorian-terrace): Rear dormer and L-shaped closet-wing schemes. - [Edwardian semi](/loft-conversion-cost/edwardian-semi): Wider frontages, generous roof volume. - [Mid-terrace](/loft-conversion-cost/mid-terrace) and [end-of-terrace](/loft-conversion-cost/end-of-terrace): Access and party wall differences. - [Detached house](/loft-conversion-cost/detached-house): No party wall, more design freedom. - [Bungalow](/loft-conversion-cost/bungalow), [chalet bungalow](/loft-conversion-cost/chalet-bungalow), [dormer bungalow](/loft-conversion-cost/dormer-bungalow): Part-converted roofs and stair constraints. - [New-build house](/loft-conversion-cost/new-build-house): Shallow pitches, trusses, covenants and warranties. - [With an en-suite](/loft-conversion-cost/with-ensuite), [with a dormer](/loft-conversion-cost/with-dormer), [small lofts](/loft-conversion-cost/small), [3-bed semi](/loft-conversion-cost/3-bed-semi). ## Question answers - [Questions hub](/questions): Direct, sourced answers to common UK loft conversion questions. - Planning: [do I need planning permission](/questions/do-i-need-planning-permission-for-a-loft-conversion), [the 50m³ rule](/questions/what-is-the-50-cubic-metre-loft-conversion-rule), [Article 4 directions](/questions/what-is-an-article-4-direction), [planning permission cost](/questions/how-much-does-planning-permission-cost-for-a-loft-conversion). - Cost: [UK cost](/questions/how-much-does-a-loft-conversion-cost-uk), [1930s semi cost](/questions/how-much-does-a-loft-conversion-cost-on-a-1930s-semi), [cheapest type](/questions/what-is-the-cheapest-type-of-loft-conversion), [builder deposits](/questions/how-much-deposit-should-i-pay-a-loft-conversion-builder). - Feasibility and design: [can my loft be converted](/questions/how-do-i-know-if-my-loft-can-be-converted), [headroom needed](/questions/how-much-headroom-do-i-need-for-a-loft-conversion), [truss roofs](/questions/can-i-convert-a-loft-with-a-truss-roof), [architect needed](/questions/do-i-need-an-architect-for-a-loft-conversion), [surveys](/questions/what-survey-do-i-need-before-a-loft-conversion), [drawings](/questions/what-drawings-do-i-need-for-a-loft-conversion). - Regulations: [building regs](/questions/do-loft-conversions-need-building-regulations), [no building regs](/questions/what-happens-if-a-loft-conversion-has-no-building-regs), [fire safety](/questions/what-fire-safety-rules-apply-to-lofts), [fixed staircase](/questions/does-a-loft-conversion-need-a-fixed-staircase), [calling it a bedroom](/questions/can-a-loft-conversion-be-called-a-bedroom). - Living with it: [disruption](/questions/how-noisy-and-disruptive-is-a-loft-conversion), [staying in the house](/questions/can-you-live-in-the-house-during-a-loft-conversion), [telling your insurer](/questions/do-i-need-to-tell-my-insurer-about-a-loft-conversion), [value on a terrace](/questions/how-much-value-does-a-loft-conversion-add-to-a-terraced-house). ## Other city pages - [Loft conversions in London](/loft-conversion/london) - [Loft conversions in Birmingham](/loft-conversion/birmingham) - [Loft conversions in Cardiff](/loft-conversion/cardiff) - [Loft conversions in Nottingham](/loft-conversion/nottingham) ## Optional - [Privacy](/privacy) - [Terms](/terms) - [Cookies](/cookies)