structure-frame
4 sources in the library on structure-frame, 4 on this page cited in a published note. Each one says what the document covers and what it is good for. Name a source to see which document it is and where to read it. One at a time.
- supplier figure RN-AJ5JUJ cited
LCCL Construction
a London loft conversion contractor's own published price range for a hip to gable conversion, £45,000 to £75,000 in 2026, which is one of the two figures the cost book records for that type. A contractor publishing its own prices is evidence of what it charges rather than an aggregate of what other people say they charge
Cited in Average Loft Conversion Cost: Real 2026 Breakdown by Type, Extension vs Loft Conversion vs Moving House, How Much Does a Loft Conversion Cost in 2026?, Loft Conversion Cost by Region (London & Beyond).
- supplier figure RN-0Z4QTE cited
LCCL Construction
a London loft conversion contractor's own published price range for an L-shaped dormer, £45,000 to £80,000 in 2026, broken down as £45,000 to £55,000 standard and £55,000 to £70,000 mid-range. It is one of three contractor figures the cost book records for that type
Cited in Average Loft Conversion Cost: Real 2026 Breakdown by Type, Does a Loft Conversion Add Value? UK Data & ROI, Dormer Loft Conversions: Cost, Types & Is One Right for You?.
- supplier figure RN-L4L9HF cited
LCCL Construction
a London loft conversion contractor's own published price range for a mansard conversion, £60,000 to £120,000 in 2026, which is one of the two figures the cost book records for that type. A contractor publishing its own prices is evidence of what it charges rather than an aggregate of what other people say they charge
Cited in Extension vs Loft Conversion vs Moving House, How Much Does a Loft Conversion Cost in 2026?, Loft Conversion Cost by Region (London & Beyond), Loft Conversion vs House Extension: Which Adds More Value?.
- supplier figure RN-A1R6RI cited
LCCL Construction
a London loft conversion contractor's own published price range for a rooflight conversion, £18,000 to £48,000 in 2026, split into £18,000 to £30,000 for a basic one-room conversion and £28,000 to £48,000 with an ensuite. It is one of the two figures the cost book records for that type, and the two do not agree: the other contractor's floor is £40,000. A contractor publishing its own prices is evidence of what it charges rather than an aggregate of what other people say they charge
Cited in Average Loft Conversion Cost: Real 2026 Breakdown by Type, Extension vs Loft Conversion vs Moving House, How Much Does a Loft Conversion Cost in 2026?, Loft Conversion: The Complete Guide and 3 more.