Usually included
- Excavation, base preparation, concrete, reinforcement, drainage interfaces and backfill control.
- Bali-specific assumptions for water movement and tropical rain exposure.
Bali
Bali foundation cost by soil type
In Bali, foundation cost can shift dramatically once the project understands soil, slope and water path. Early budgets often fail because the foundation is treated as a simple concrete quantity instead of a ground-risk package. This guide ties soil conditions back to excavation, drainage and hold points.
Budget snapshot
Location Bali
Planning range IDR 1.2M-4.5M / m² of building area
Best for Owners who need to understand how Bali soil type changes foundation cost before design and excavation start.
Example planning scenarios
| Scenario | Area / basis | Specification | Planning range | Unit range | Important note |
|---|---|---|---|---|---|
| Stable soil baseline | 150-250 m² building | Known bearing conditions, straightforward excavation and normal backfill control. | IDR 180M-700M | IDR 1.2M-2.8M / m² | Lowest range assumes confirmed soil and simple water behavior. |
| Mixed fill, slope or groundwater risk | 180-320 m² building | More excavation, drainage, waterproofing interfaces and compaction control. | IDR 324M-1.44B | IDR 1.8M-4.5M / m² | This should be treated as a risk package, not just a higher concrete allowance. |
How to use this guide
Ask for topographic and geotechnical data before accepting the lower band.
Separate difficult soil and water management into their own contingency line.
Scope assumptions
Usually excluded or priced separately
- Deep piling, major dewatering systems and large retaining structures unless modeled separately.
- Geotechnical investigation fees and design fees.
What changes the number
- Unknown fill and groundwater quickly convert a low-cost foundation into a contingency issue.
- Drainage and waterproofing interfaces are as important as concrete volume in wet tropical conditions.
- Late service penetrations often create expensive rework in completed foundation elements.
Connect this guide to the product workflow
The cost guide is useful only when it is tied back to stage pages, checklists, mistakes, and the work sequence for execution control.
Pre-construction & site preparation
Foundation & underground works
Waterproofing & wet areas
Facade & site works
Related glossary articles
Site drainage
Ground-level water management around the building.
Hold point
A required pause in the work sequence where an inspection or approval must happen before work continues.
Inspection and test plan
A quality control plan that lists inspections, tests, acceptance criteria, hold points and required records for a work package.
Waterproofing
Barrier systems preventing water penetration.
FAQ
Can I budget foundation only by floor area in Bali?
Only for the earliest screening. Once soil, slope and water are uncertain, the floor-area shortcut becomes too weak to manage risk.
What is the main inspection hold point?
The critical hold point is before concrete: excavation, base, reinforcement, penetrations and survey control all need to be checked together.