Loft Conversion Cost in Paddington: 2026 Price Guide

Given how much family houses in Paddington cost, and how disruptive moving house is, it's little surprise a loft conversion is one of the most requested projects here - particularly on the taller Victorian and Edwardian terraces the area is known for.

Typical costs

• Rooflight (Velux) conversion: roughly £30,000-£45,000
• Dormer conversion: roughly £45,000-£65,000
• Mansard or hip-to-gable conversion: £65,000-£90,000+

Adding an en-suite, structural steels for an open-plan layout, or a staircase reconfiguration will all add to these figures.

What affects the price locally

Roof pitch and existing head height are the first things a builder will check on a house in Paddington - many of the Victorian and Edwardian terraces have steeper pitches than newer housing stock, which sometimes means less dormer is needed to hit the 2.2m head-height most buyers expect, keeping costs down slightly. On the 1930s semis further from the centre, roof structures tend to be more standardised, which can make quoting more predictable.

If your property sits within the Paddington Green conservation area, separated from Maida Vale conservation area in 1988, expect closer scrutiny of how a dormer or roof alteration is seen from the street - the City of Westminster planning officers generally prefer conversions that aren't visible from the front elevation, which is one reason rear dormers are the default choice in this area.

Planning permission and party walls

Permitted development covers most Paddington loft conversions, provided the added roof volume stays within set limits and the materials match the existing house. Since so much of the local housing stock is terraced or semi-detached, a Party Wall Agreement with neighbours is almost always needed before work can start - budget real time for this, since it commonly adds several weeks to the schedule.