Conservatory vs Extension vs Garden Room
| Conservatory | Extension | Garden Room | |
|---|---|---|---|
| Typical cost | £8k-30k | £20k-60k | £8k-25k |
| Build time | 2-4 weeks | 8-16 weeks | 1-3 weeks |
| Planning | Usually not needed | Usually needed | Usually not needed |
| Year-round use | Cold in winter, hot in summer | Yes - fully insulated | Depends on insulation |
| Adds property value? | Modest (5-7%) | Significant (10-15%) | Modest (3-5%) |