B-gradeCondition grade 7/10 (B-grade). Assessed by the seller at listing; figures below relate to this specific lot of 400 blocks.
Surplus to a self-build that finished under-order. New, dry-stored, banded. Suitable for load-bearing inner leaves. Located in Cardiff — collection or arranged regional delivery available. Listed 8 days ago by Cardiff Urban Reclamation, a demolition based in Cardiff.
Every lot here was once destined for waste transfer — listing it instead keeps first-quality material in circulation at well below merchant list. B-grade pricing reflects cosmetics, not performance — the defect notes below set out exactly what was downgraded and why.
No reuse CO₂ credit is claimed on this lot: it is unused stock, so the embodied carbon was committed at manufacture. Buying it still prevents waste — material sent to landfill or energy recovery delivers none of its embodied value.
Reuse is the single fastest way to cut a build's embodied carbon — substitution beats offsetting every time.
The headline saving on this listing (waste avoidance) is benchmarked against manufacturing a new fired clay brick (~0.5 kg CO₂e per brick, BRE Global data). That's the embodied-carbon figure — the emissions locked into new material at the point of manufacture, before it ever reaches your site.
In UK building terms, embodied carbon typically accounts for 40–60% of a project's whole-life emissions once operational energy is decarbonised. Reusing masonry like this lot from Cardiff bypasses the manufacturing stage entirely, which is why substitution consistently outperforms offsetting on lifecycle assessments.
For projects tracking against Part Z (the proposed embodied-carbon amendment to the Building Regulations), BREEAM Mat 01 credits, or the RIBA 2030 Climate Challenge, reused material counts at zero embodied carbon in the A1–A3 modules. Keep the seller invoice, this listing URL and the CO₂e figure together in your carbon file.
Beyond carbon: buying this lot from Cardiff Urban Reclamation keeps first-quality masonry out of the UK construction waste stream (currently ~62 million tonnes/year, per DEFRA). It supports the circular-economy supply chain — sellers who divert stock only continue diverting when there's a viable resale route.
Standard UK bricks lay at ~60/m² in a single skin with 10mm joints. This lot (400 blocks) is best confirmed against your wall area plus a 8% cutting allowance.
Bricks that have survived decades outdoors in Cardiff have effectively passed the longest freeze-thaw test there is. We still recommend F2-rated units for exposed copings and below-DPC work.
Yes — the seller (Cardiff Urban Reclamation) will set aside sample units for inspection at the Cardiff yard before you commit to the full quantity.
Cardiff Urban Reclamation issues a VAT invoice on collection or dispatch — bank transfer is standard, card on request. For anything over £500 we recommend a written spec confirmation before paying, so the exact masonry description and quantity are on record.
A short reservation (typically 48–72 hours) is usually possible with a 10% holding deposit. Surplus stock moves quickly, especially b-grade lots at this price point — confirm the hold in writing so the seller doesn't re-list.
The material itself carries the same certifications as merchant stock; document the reuse route in your carbon log even without a specific CO₂e figure — waste avoidance still counts under Part Z reporting guidance.
Reclaimed420kg CO₂Reclaimed Welsh blue pennant stone — random sizes, hand-pitched faces. Beautiful weathered patina. Perfect for new boundary walls in conservation areas across South Wales.
B-grade Job lotHand-cleaned reclaimed stock with weathered face. Mortar removed. Ideal for facing work, garden walls and conservation infill. Located in Cardiff — collection or arranged regional delivery available.
B-gradeSurplus from a development. Brand new, banded on pallets. Suits damp courses, retaining walls and below-DPC work. Located in Cardiff — collection or arranged regional delivery available.