All programme templates
Programme template

Groundworks & external works package: typically 8–14 weeks.

Groundworks subcontract package: reduce dig, foundations, drainage, slabs and external finishes for a main contractor.

Durations are typical ranges for a well-run job with normal lead times — actual programmes vary with site conditions, weather and procurement.

Stage-by-stage

  1. Mobilisation & site set-up2–4 days
  2. Reduce dig & muck awayMuck-away costs balloon if ground is worse than the SI — flag early4–8 days
  3. Foundations & concrete6–10 days
  4. ◆ Foundations sign-offinspection / milestone
  5. Below-ground drainage5–8 days
  6. ◆ Drainage test & sign-offinspection / milestone
  7. Sub-base & floor slabs5–8 days
  8. Service ducts & external drainage4–6 days
  9. Kerbs, paths & hardstandings5–8 days
  10. Topsoil, landscaping & fencing3–6 days
  11. Demobilise & handover1–2 days

Customise this programme:

Residential

Commercial

Packages

Typical durations for a well-run job — actual programmes vary with site, weather and lead times.

Adjust stage durations
Completed In Progress Upcoming
27 Jul4 Aug13 Aug22 Aug31 Aug
Mobilisation & site set-up
0%
Reduce dig & muck away
0%
Foundations & concrete
0%
Foundations sign-off
Below-ground drainage
0%
Drainage test & sign-off
Sub-base & floor slabs
0%
Service ducts & external drainage
0%
Kerbs, paths & hardstandings
0%
Topsoil, landscaping & fencing
0%
Demobilise & handover
0%

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Single-storey rear extension →Double-storey extension →Loft conversion (dormer) →Wraparound extension →Full house refurbishment →New-build house (single plot) →