Collection: Modular Building Block Kits
Build Your Vision with Modular Building Block Kits
Why settle for ordinary when extraordinary is just clicks away? Our modular building block kits transform ambitious garden dreams into weekend realities, without the sweat, skills, or hefty price tags of traditional construction.
Browse our complete range below or call 0333 772 3030 for expert guidance. Your perfect garden feature is just one phone call away.

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PolyBrick® Raised Beds
5.0 / 5.0
(7) 7 total reviews
Regular price From £50.00 GBPRegular priceUnit price / per£75.00 GBPSale price From £50.00 GBPPolyBrick® Raised Beds
Regular price From £50.00 GBPRegular priceUnit price / per£75.00 GBPSale price From £50.00 GBPPolyBrick® Raised Beds
Regular price From £50.00 GBPRegular priceUnit price / per£75.00 GBPSale price From £50.00 GBPSale -
PolyBrick® Garden Composters
5.0 / 5.0
(1) 1 total reviews
Regular price From £194.40 GBPRegular priceUnit price / per£220.00 GBPSale price From £194.40 GBPPolyBrick® Garden Composters
Regular price From £194.40 GBPRegular priceUnit price / per£220.00 GBPSale price From £194.40 GBPPolyBrick® Garden Composters
Regular price From £194.40 GBPRegular priceUnit price / per£220.00 GBPSale price From £194.40 GBPSale -
PolyBrick® Bespoke Above Ground Pond Kit
Regular price £0.90 GBPSale price £0.90 GBPUnit price / perPolyBrick® Bespoke Above Ground Pond Kit
Regular price £0.90 GBPSale price £0.90 GBPUnit price / perPolyBrick® Bespoke Above Ground Pond Kit
Regular price £0.90 GBPSale price £0.90 GBPUnit price / perSale -
PolyBrick® Bespoke Garden Composter Kit
5.0 / 5.0
(1) 1 total reviews
Regular price £0.90 GBPSale price £0.90 GBPUnit price / perPolyBrick® Bespoke Garden Composter Kit
Regular price £0.90 GBPSale price £0.90 GBPUnit price / perPolyBrick® Bespoke Garden Composter Kit
Regular price £0.90 GBPSale price £0.90 GBPUnit price / perSale -
PolyBrick® Bespoke Raised Bed Planter Kit
Regular price £0.90 GBPSale price £0.90 GBPUnit price / perPolyBrick® Bespoke Raised Bed Planter Kit
Regular price £0.90 GBPSale price £0.90 GBPUnit price / perPolyBrick® Bespoke Raised Bed Planter Kit
Regular price £0.90 GBPSale price £0.90 GBPUnit price / perSale
No More Compromise, No More Waiting
Forget rotting timber that disappoints in two years.
Skip the backbreaking labour of concrete mixing.
Professional Results in Hours, Not Weeks
Whether you're creating stunning retaining walls that solve that troublesome slope, elegant planters that become garden focal points, or efficient composters that turn waste into garden gold - PolyBrick delivers professional results that last.
Built for Britain, Built to Last
Every block is crafted in the UK Midlands from 100% recycled materials, meaning your project protects both your garden and our planet. No trees felled, no quarries scarred - just brilliant engineering that clicks together without tools, mess, or expertise.
Your Design, Your Way
Our smart calculators let you design exactly what your space needs. Want something unique? No problem. Need trade quantities? We've got you covered. Every kit arrives ready to build, with everything perfectly calculated for your vision.
From Seasoned Landscapers to Weekend Warriors
Everyone achieves flawless results with our modular building block kits. No experience required, no tools needed, no disappointments.
Let customers speak for us
from 18 reviewsLiterally from the first point of placing the order, going through the transaction and completing the order, to receiving the product within a few days, super service :-)
Superb business run by a lovely team, from sales to customer service & management, and providing a fantastic product, with multiple uses! Great stuff! Thanks again!

Such a good idea, simple to work with a great quality. A good company to order from too. Super service

Made a planter for my mam’s garden she loved it can’t wait to make one for us now funky design

Great service. Really kind and polite people who gave me lots of advice answering all my questions!!
Amazing bricks!!! Built all sorts round the farm with them. Pig troughs, mounting blocks, temporary gates, little obstacle courses for the ponies - the list is endless!!! Want more!!!!

Very straightforward to set up. Used a rubber mallet to get the blocks lined up and slotted together then started filling with grass cuttings pretty much right away.

I dont normally write reviews but felt that this product deserved some love.
Dead easy to build anything. I made a low retaining wall and raised bed.
Brilliant....

I was dubious about this product, but they are brilliant. We used them for a wood store. Fast delivery and very simple to use. Would defo order again for our next project

Used this for my garden, looks great and product is excellent quality

I built a cloche for my plants with the grey bricks and put a clear perspex cover on top. Keeps my plants warm and looks premium 👌


One System, Endless Garden Solutions
Our modular building block kits work together as a complete garden ecosystem. Match your raised bed planters with coordinating retaining walls. Create stepped terraces that flow into pond surrounds. Design integrated seating that complements your composters.
Every kit uses the same building blocks - so everything matches perfectly and can be expanded or reconfigured whenever inspiration strikes.

Building a Better Future, One Block at a Time
British-made sustainability that performs better than traditional alternatives. Every PolyBrick® giant building block is made from 100% recycled polypropylene right here in the UK. By choosing our large lego blocks, you're not just building amazing structures - you're helping divert plastic waste from landfills and reducing demand for virgin materials.
Creative Ideas & Inspiration
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Building a Garden Chair
How Our MD Ted Built His Garden Chair in Just 1 Hour Even when you're the Managing Director of PolyBrick®, there's nothing quite like putting your own product to the...
Building a Garden Chair
How Our MD Ted Built His Garden Chair in Just 1 Hour Even when you're the Managing Director of PolyBrick®, there's nothing quite like putting your own product to the...
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Building a Tiered Herb Planter
Building a Two-Tier Herb Planter: Ray's Kitchen Garden Success Story When Ray from Norfolk decided to grow his own herbs, he faced a common problem - limited space and poor...
Building a Tiered Herb Planter
Building a Two-Tier Herb Planter: Ray's Kitchen Garden Success Story When Ray from Norfolk decided to grow his own herbs, he faced a common problem - limited space and poor...
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Building a Large Tree Planter
Replacing an Oak Barrel: Building a Large Tree Planter with PolyBrick® When Luna's beloved oak barrel planter finally gave up after years of faithful service, she faced a dilemma. Her...
Building a Large Tree Planter
Replacing an Oak Barrel: Building a Large Tree Planter with PolyBrick® When Luna's beloved oak barrel planter finally gave up after years of faithful service, she faced a dilemma. Her...
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Building a Garden Raised Bed
Take a look at this raised bed built by the IBRAN team. In less than an hour, the team at IBRAN assembled this massive three-sided raised bed area. The brief...
Building a Garden Raised Bed
Take a look at this raised bed built by the IBRAN team. In less than an hour, the team at IBRAN assembled this massive three-sided raised bed area. The brief...