South West regional pricing
How Much Does a Builder Cost in Plymouth?
Updated prices for . Plymouth prices are typically 9% below the national average.
Price summary
Plymouth Price Summary
| Service | Low | Average | High |
|---|---|---|---|
| Single Storey Extension | £27,180 | £45,300 | £72,480 |
| Double Storey Extension | £45,300 | £77,010 | £126,840 |
| Loft Conversion | £22,650 | £40,770 | £67,950 |
Prices include labour and materials. VAT may apply. Based on South West regional pricing.
Full pricing
All Builder Prices in Plymouth
Every price adjusted for Plymouth using a 0.906x cost multiplier, rounded to the nearest £5.
| Job | Low | Average | High | Duration |
|---|---|---|---|---|
| Single Storey Extension | £27,180 | £45,300 | £72,480 | 8-12 weeks |
| Double Storey Extension | £45,300 | £77,010 | £126,840 | 12-20 weeks |
| Loft Conversion | £22,650 | £40,770 | £67,950 | 6-10 weeks |
| Garage Conversion | £7,250 | £13,590 | £22,650 | 2-4 weeks |
| Porch Build | £2,265 | £4,075 | £7,250 | 1-2 weeks |
| Garden Wall | £725 | £1,360 | £2,720 | 2-4 days |
| Knock Through Internal Wall | £905 | £1,630 | £3,170 | 2-4 days |
| Chimney Breast Removal | £1,085 | £1,810 | £3,170 | 2-4 days |
| Underpinning | £4,530 | £10,870 | £22,650 | 2-4 weeks |
| Damp Proof Course | £455 | £1,085 | £2,265 | 1-3 days |
| New Build Garage | £9,060 | £16,310 | £27,180 | 3-5 weeks |
| Outbuilding or Garden Room | £10,870 | £22,650 | £45,300 | 3-6 weeks |
| Structural Steelwork (RSJ Installation) | £905 | £1,630 | £2,720 | 1-2 days |
| Patio or Decking Build | £1,360 | £3,170 | £6,340 | 3-5 days |
Single Storey Extension
Low
£27,180
Average
£45,300
High
£72,480
8-12 weeks
Double Storey Extension
Low
£45,300
Average
£77,010
High
£126,840
12-20 weeks
Loft Conversion
Low
£22,650
Average
£40,770
High
£67,950
6-10 weeks
Garage Conversion
Low
£7,250
Average
£13,590
High
£22,650
2-4 weeks
Porch Build
Low
£2,265
Average
£4,075
High
£7,250
1-2 weeks
Garden Wall
Low
£725
Average
£1,360
High
£2,720
2-4 days
Knock Through Internal Wall
Low
£905
Average
£1,630
High
£3,170
2-4 days
Chimney Breast Removal
Low
£1,085
Average
£1,810
High
£3,170
2-4 days
Underpinning
Low
£4,530
Average
£10,870
High
£22,650
2-4 weeks
Damp Proof Course
Low
£455
Average
£1,085
High
£2,265
1-3 days
New Build Garage
Low
£9,060
Average
£16,310
High
£27,180
3-5 weeks
Outbuilding or Garden Room
Low
£10,870
Average
£22,650
High
£45,300
3-6 weeks
Structural Steelwork (RSJ Installation)
Low
£905
Average
£1,630
High
£2,720
1-2 days
Patio or Decking Build
Low
£1,360
Average
£3,170
High
£6,340
3-5 days
Regional comparison
How Plymouth Compares
Average cost of single storey extension across regions.
Local insights
What Affects Builder Costs in Plymouth?
The South West has a mix of housing styles, from Victorian and Edwardian semis to 1930s suburban developments and modern estates. In and around Plymouth, many properties in areas near Surrey and Kent vary in age and condition. Older properties with original features typically cost more for builder work due to additional preparation and access challenges.
The South West sits above the national average for trade costs, influenced by proximity to London and the generally higher cost of living. Labour rates in Plymouth are typically 9% below the UK average. Despite this, there's a strong supply of qualified builder professionals across the region. Prices can vary 30-50% between different tradespeople for the same job, so getting multiple quotes is essential.
What you pay for builder work in Plymouth depends on the complexity of the job, the materials used, and the condition of your property. Older detached and semi-detached homes often present more challenges that add to the cost. For larger jobs, expect to pay £45,300 to £126,840 for double storey extension in Plymouth. Coastal properties in the South West may face additional considerations that affect pricing.
When getting quotes in Plymouth, aim for at least three from different qualified professionals. Ask each one to visit and assess the work rather than quoting over the phone. A good builder will check the existing setup, identify complications, and provide a detailed cost breakdown. Be wary of quotes that seem significantly cheaper — they may be cutting corners on materials or quality. Always check qualifications, insurance and recent reviews.
More services
Other Services in Plymouth
Explore costs for other services in the Plymouth area.
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UK-wide pricing
Builder Costs in Other Cities
Compare builder prices across the UK.
Common questions
Frequently Asked Questions
Common questions about builder costs in Plymouth.