Cornerstone Builders is Leeds' trusted local building contractor, delivering exceptional construction services across the city and surrounding areas. With over 20 years of hands-on experience, our team of skilled tradespeople and project managers brings unrivalled expertise to every job — whether you're planning a loft conversion in Headingley, a house extension in Roundhay, or a full home renovation in Morley.

We specialise in residential construction and renovation — from single-storey and double-storey house extensions that maximise your living space, to full loft conversions that add a bedroom and significant value to your property. Our new build projects are delivered on schedule and within budget, with transparent communication at every stage. If you need structural repairs or underpinning work, our structural engineers work alongside our site teams to ensure safe, lasting results.

One area where Cornerstone Builders truly stands apart is planning permission support. Navigating Leeds City Council's planning requirements can be complex — we guide homeowners through every step, from permitted development rules to full planning applications, ensuring your project gets approved and built without costly delays. We've helped hundreds of Leeds families expand, renovate and improve their homes with full council approval.

Fully insured, Gas Safe registered and members of the Federation of Master Builders, we pride ourselves on quality workmanship, honest pricing and a commitment to your satisfaction. Every project receives a free written quote, detailed schedule of works and a dedicated project manager. When you search for a builder near me in Leeds, Cornerstone Builders is the name your neighbours trust. Join hundreds of satisfied homeowners across Leeds — from Alwoodley to Beeston, Horsforth to Garforth.