Concrete building blocks
Concrete building blocks for sale on Ireland's largest auction and classifieds sites
Concrete block 100mm 7 - concrete, - £100.09
Concrete block 100mm • 7.3n dense building • Pack high quality - Free postage - New and Used
Concrete block 100mm • 7.3n dense building • Pack high quality - Free postage - New and Used
Concrete blocks 100mm - concrete, 215mm - £80.00
- Free postage - New and Used
- Free postage - New and Used
Concrete blocks 100mm 215mm - concrete, - £120.00
- Free postage - New and Used
- Free postage - New and Used
Iso hemp building - hemp, thermal - £234.70
Isohemp hemp block • Non load bearing • Glued masonry product - Free postage - New and Used
Isohemp hemp block • Non load bearing • Glued masonry product - Free postage - New and Used
Looking for more concrete building blocks?
Search eBay live — fresh results filtered for the best value, updated every hour.
Mould king 19014 pneumatic - king, - £80.69
Introducing mould king • Pneumatic concrete pump • Model body equipped - Free postage - New and Used
Introducing mould king • Pneumatic concrete pump • Model body equipped - Free postage - New and Used
📊
48 listings · from £1.17 · avg £67.84
⚠️ These listings were last updated more than 92 days ago.
Search for fresh listings
Browse 48 concrete building blocks listings currently in our index. Prices range from £1.17 to £279.99, with an average of £67.84. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about concrete building blocks →
Mould king 19014 pneumatic - king, - £79.79
Introducing mould king • Pneumatic concrete pump • Model body equipped - Free postage - New and Used
Introducing mould king • Pneumatic concrete pump • Model body equipped - Free postage - New and Used
140mm concrete blocks - 140mm, - £158.00
They are ideal • Finishing render cladding • Plaster drylining these - Free postage - New and Used
They are ideal • Finishing render cladding • Plaster drylining these - Free postage - New and Used
Concrete block 100mm - block, 7.3n - £200.36
High strength 100mm • Dense concrete blocks • Load bearing durable - Free postage - New and Used
High strength 100mm • Dense concrete blocks • Load bearing durable - Free postage - New and Used
Build easy mix - it, - £14.99
Convenient mixing just • Add water this • Easy mix mortar - Free postage - New and Used
Convenient mixing just • Add water this • Easy mix mortar - Free postage - New and Used
Mould king 19014 - mould, pneumatic - £80.29
Overview introducing mould • King pneumatic concrete • Model body equipped - Free postage - New and Used
Overview introducing mould • King pneumatic concrete • Model body equipped - Free postage - New and Used
Dolls house breeze - house, - £6.50
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Quality grey concrete - grey, - £120.00
Also have various • Types sizes available • Silver grey mid - Free postage - New and Used
Also have various • Types sizes available • Silver grey mid - Free postage - New and Used
Grain walling scale - grain, 1:32 - £1.17
Concrete blocks are • 25mm square cross • 50mm long depending - Free postage - New and Used
Concrete blocks are • 25mm square cross • 50mm long depending - Free postage - New and Used
Garden building base - garden, - £85.00
Adjut bloc low • Labour fast construction • Answer supporting buildings - Free postage - New and Used
Adjut bloc low • Labour fast construction • Answer supporting buildings - Free postage - New and Used
Block paving seal - , coating - £149.99
Before painting your • Garage floor important • Repair any cracks - Free postage - New and Used
Before painting your • Garage floor important • Repair any cracks - Free postage - New and Used
Concrete cube block security - concrete, - £48.00
Cube concrete block • Will respond you • Within hours our - Free postage - New and Used
Cube concrete block • Will respond you • Within hours our - Free postage - New and Used
Scale construction - 1/14, - £8.99
Kit features breeze • Blocks hollow building • What better - Free postage - New and Used
Kit features breeze • Blocks hollow building • What better - Free postage - New and Used
Dolls house construct block - house, construct-a-block - £31.99
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Narrow concrete blocks - 10, - £17.24
10x narrow concrete • Blocks system building • Block load also - Free postage - New and Used
10x narrow concrete • Blocks system building • Block load also - Free postage - New and Used
Dolls house breeze blocks - 50, - £43.99
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Precast concrete paving - precast, - £32.99
Concrete moulds made • From top quality • 3mm 5mm acrylonitrile - Free postage - New and Used
Concrete moulds made • From top quality • 3mm 5mm acrylonitrile - Free postage - New and Used
Dolls house red - 50, blocks - £20.42
50pcs mini cinder • Blocks realistic fake • Bricks micro building - Free postage - New and Used
50pcs mini cinder • Blocks realistic fake • Bricks micro building - Free postage - New and Used
Multi block interlocking - multi, - £180.00
600 600mm 514kgs • Listed price one • Block collected from - Free postage - New and Used
600 600mm 514kgs • Listed price one • Block collected from - Free postage - New and Used
Building with masonry brick - building, - £3.28
Author dick kreh • Isbn 156158228x title • Building masonry brick - Free postage - New and Used
Author dick kreh • Isbn 156158228x title • Building masonry brick - Free postage - New and Used
Dolls house concrete deck - dolls, - £7.50
Dolls house • Bakery confectionery mouldings • Trims timber - Free postage - New and Used
Dolls house • Bakery confectionery mouldings • Trims timber - Free postage - New and Used
Fog models scale rubble - fog, - £10.32
Fog models diorama • Products cast hard • Ceramic this highly - Free postage - New and Used
Fog models diorama • Products cast hard • Ceramic this highly - Free postage - New and Used
Model railway ho - model/railway, oo/ho - £1.17
Any postage overpayments • Will refunded explore • Potential your model - Free postage - New and Used
Any postage overpayments • Will refunded explore • Potential your model - Free postage - New and Used
Dolls house construct - house, construct-a-block - £49.99
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Concrete blocks seconds - concrete, - £52.70
Interlocking concrete block • Seconds 20t blocks • Various sizes available - Free postage - New and Used
Interlocking concrete block • Seconds 20t blocks • Various sizes available - Free postage - New and Used
Used concrete interlocking - concrete, - £52.70
Used concrete interlocking • 680 700 security • Collection only - Free postage - New and Used
Used concrete interlocking • 680 700 security • Collection only - Free postage - New and Used
Block paving coating - , - £149.99
Before painting your • Garage floor important • Repair any cracks - Free postage - New and Used
Before painting your • Garage floor important • Repair any cracks - Free postage - New and Used
Building with masonry brick - with, masonry: - £4.87
Author dick kreh • Isbn 156158228x title • Building masonry brick - Free postage - New and Used
Author dick kreh • Isbn 156158228x title • Building masonry brick - Free postage - New and Used
Block paving imprinted - block, - £126.99
Protect enhance your • Paving choice finishes • Use leaf blower - Free postage - New and Used
Protect enhance your • Paving choice finishes • Use leaf blower - Free postage - New and Used
Wrekin concrete decking - decking, blocks - £14.60
Engineered decking block • Simple but highly • Effective stable solution - Free postage - New and Used
Engineered decking block • Simple but highly • Effective stable solution - Free postage - New and Used
Dolls house pallet 24 - pallet, - £31.99
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Concrete test weights - weights, / - £100.00
Concrete security blocks • Test weights - Free postage - New and Used
Concrete security blocks • Test weights - Free postage - New and Used
Mould king pneumatic concrete - king, - £279.99
- Free postage - New and Used
- Free postage - New and Used
Best block paving - block, - £126.99
Protect enhance your • Paving choice finishes • Use leaf blower - Free postage - New and Used
Protect enhance your • Paving choice finishes • Use leaf blower - Free postage - New and Used
Anti condensation paint - anti-condensation, - £49.99
Thermal barrier technology • Unique microspheres create • Minimising temperature differences - Free postage - New and Used
Thermal barrier technology • Unique microspheres create • Minimising temperature differences - Free postage - New and Used
Big concrete block - big, - £40.00
Suitable exterior use • Coloured grey durable • Sturdy various building - Free postage - New and Used
Suitable exterior use • Coloured grey durable • Sturdy various building - Free postage - New and Used
Dolls house breeze blocks - dolls, - £24.99
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Block paving imprinted - &, - £29.99
Protect enhance your • Paving choice finishes • Use leaf blower - Free postage - New and Used
Protect enhance your • Paving choice finishes • Use leaf blower - Free postage - New and Used
Dolls house firepit stones - dolls, - £24.99
Dolls house • Stones will build • Layer firepit your - Free postage - New and Used
Dolls house • Stones will build • Layer firepit your - Free postage - New and Used
Dolls house breeze blocks - dolls, - £31.99
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Dolls house • Mouldings trims timber • Houses buildings - Free postage - New and Used
Concrete block mold 5 - block, 5½" - £10.80
Concrete block mold • Steel insert - Free postage - New and Used
Concrete block mold • Steel insert - Free postage - New and Used
Imprinted concrete block - concrete, - £69.99
Block paving printed • Water based sealer • Gloss eco friendly - Free postage - New and Used
Block paving printed • Water based sealer • Gloss eco friendly - Free postage - New and Used
Concrete lego blocks - blocks, x - £16.15
This set high • Quality concrete lego • Blocks perfect any - Free postage - New and Used
This set high • Quality concrete lego • Blocks perfect any - Free postage - New and Used
Block paving concrete imprint - £49.00
Block paving sealer • Heavy duty high • Impact clear wet - Free postage - New and Used
Block paving sealer • Heavy duty high • Impact clear wet - Free postage - New and Used
Try this: fascia soffit | victorian pavers | screen wall blocks | concrete screed | temporary fencing | terca bricks | cast iron manhole cover | breathable membrane | bullnose bricks | plasterboard props
Shop by budget
Everything you need to know about concrete building blocks
Whether you are looking for a brand-new or second-hand concrete building blocks, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £1.17, while premium listings can reach £279.99 — giving you a wide budget spread to work with. The average price of £67.84 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.