
The Cost of an Extension in 2026 – A Detailed Breakdown of Current Material Prices
The last few years have been a roller‑coaster for the building sector: post‑pandemic labour shortages, the fallout from the Ukraine conflict, and a wave of green‑building mandates have all left their fingerprint on material costs. If you’re planning a kitchen‑plus‑loft conversion, a two‑storey family extension, or a modest garden office, you’ll need a realistic budget today—not the numbers you saw three years ago. Below, we unpack the most common materials, their…












