JLS Building & Property Development is based in Biggleswade, right on the A1 in the heart of east Bedfordshire, which puts an unusually large slice of three counties within easy working distance.
We're a family-run construction firm with over 30 years of experience, FMB-accredited and SafeContractor approved. Wherever you are on this page, the service is the same: one team, one point of contact, fixed itemised quotations and work that's built to last.
• Biggleswade: our home town, and where you'll find much of our work, from Victorian terraces near the market square to the newest developments.
• Sandy: renovations, extensions and landscaping along the Ivel valley.
• Bedford: the county town's Victorian and Edwardian stock is ideal for structural alterations and full renovations.
• Ampthill & Flitwick: garage conversions, extensions and boundary work on the Greensand Ridge.
• Shefford: covering Shefford, Clifton, Henlow, Arlesey and Stotfold, just minutes from our base.
• Potton & Gamlingay: the market town and villages east of Sandy.
• Hitchin: loft conversions and clever reworkings of the town's Victorian terraces.
• Letchworth Garden City: sympathetic work that respects the Garden City's heritage.
• Baldock: kitchens, extensions and natural stone paving around the Georgian town centre.
• Stevenage: renovating and opening up the New Town's mid-century housing stock.
• St Neots: bathrooms, drainage and extensions across the town's established and newer neighbourhoods.
• Milton Keynes: garage conversions, structural alterations and commercial fit-outs across the city's estates and business parks.
The full JLS range travels with us: house extensions, loft and garage conversions, complete home renovations, kitchens and bathrooms, structural alterations, carpentry, landscaping, patios and driveways, groundworks and drainage, fencing, plus commercial refurbishments, fit-outs and facilities maintenance for business clients. Start from our services page if you'd rather browse by project than by place.
The list above is where we work most, not a hard boundary. For larger projects, extensions, full renovations, commercial works. We regularly travel further across all three counties and into Buckinghamshire. Tell us the postcode and the project, and we'll give you a straight answer about whether we're the right fit.

Whether you're planning a house extension, renovation, or commercial project, get in touch with our team to arrange a consultation.
We’ll provide clear advice, a detailed quotation, and a professional service from start to finish.
Biggleswade, UK
A family run construction company known for quality and professionalism.
Based in Biggleswade, Bedfordshire, we have built a strong reputation for delivering high-quality work across the surrounding areas.
Copyright © 2026 JLS Building & Property Development Ltd - All Rights Reserved.
Registered in England and Wales. Company No. 16751323.
+441767 235673
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