Typical prices for concrete and paved shed bases in Bognor Regis, Chichester and across West Sussex — and what affects the final figure.
Typical shed base costs
A professionally installed concrete shed base in West Sussex typically costs between £450 and £1,200 depending on size, access and ground conditions. A 6ft x 4ft base on flat, clear ground sits at the lower end; a 12ft x 10ft base for a garden office with poor access sits at the upper end.
The price normally covers excavation, a compacted MOT Type 1 sub-base, formwork, reinforcement mesh where needed, and a level concrete pour finished flat and square to your building footprint.
What affects the price
- Size and thickness of the base — garden offices need a thicker, reinforced slab
- Access — a 0.8T micro digger fits through most side gates, but hand digging costs more
- Ground conditions — heavy Bognor clay or sloping ground means more excavation
- Spoil removal — muck-away is usually priced per load
- Drainage — wet ground may need land drains installed at the same time
Why a proper base matters
A shed placed straight onto grass or paving slabs sinks, twists and rots. A correctly dug and compacted base keeps the building level, doors opening, and the timber off the damp ground — especially important on the waterlogged clay common around Bognor Regis and Chichester.
We install shed bases across West Sussex with free on-site surveys and written quotes. Call 07308 999557 or book a free survey online.