A family-run building contractor based in Biggleswade, Bedfordshire, working across Bedfordshire, Hertfordshire, Cambridgeshire and Buckinghamshire. Residential and commercial, from single-room refits to full commercial refurbishments.
JLS Building & Property Development is a family-run construction company based in Biggleswade. We work across Bedfordshire and into Hertfordshire, Cambridgeshire and Buckinghamshire, on everything from a single bathroom to a double-storey extension, a commercial fit-out or an ongoing maintenance contract.
The company carries over 30 years of experience in the trade. That experience is why we run projects the way we do, one team on site rather than a rotating cast of subcontractors, one person you deal with from first survey to final handover, and a quote that shows you what is and isn't included before anything is agreed.
We're small enough that the person who quotes your job is the person who runs it, and established enough to carry the accreditations, insurance and process that commercial clients require. Registered in England and Wales, company number 16751323.

Runs the business and is usually the first person you'll speak to. Handles quoting, scheduling and client contact from first enquiry through to final handover, and remains the point of contact if anything needs sorting mid-project.

The experience behind the business, three decades on the tools and running sites. The person we put in front of a problem nobody else can solve: awkward structural work, a survey that turns up something unexpected, an old building not behaving the way the drawings said it would. Oversees how every job gets built.

On site across groundworks, strip-outs and first fix, the daily graft that keeps a build moving to programme. Also the reason sites get left tidy and safe at the end of each day rather than the end of the week.

Works across the full range of site work, groundworks, strip-out, materials and supporting the trades through every stage of a project. The kind of steady presence on site that keeps a programme running without fuss.
Rather than list values, here is what we actually commit to on every job.
The person who quotes your job runs it. You won't be handed between an estimator, a manager and a foreman.
Written, itemised, with exclusions stated. If something isn't in the price, you'll see that before you agree, not after.
A programme with stage dates at the start, and an update when something moves — including when the reason is ours.
If work is needed beyond the quoted scope, we stop and tell you what it costs before doing it.
Tidied and made safe at the end of each day, not at the end of the week. It matters more when you're living in the house.
Certification, guarantees and sign-off documents handed over at completion, not chased for months afterwards.
Certificate CD3243, valid to April 2027. Independently assessed health and safety competence.
Member 169127, valid to January 2027. Independently vetted and inspected.
£5M Public Liability certificate available on request.
England and Wales, company number 16751323.
Single and double-storey extensions, garage and loft conversions.
Kitchens, bathrooms, utility rooms and bespoke joinery.
Refurbishment, fit-out, alterations and dilapidations.
Planned and reactive maintenance for commercial property.
Hitchin, Letchworth, Baldock, Stevenage, Welwyn
Tell us what you're planning and roughly when. We'll arrange a visit, talk through what's realistic, and put an itemised quote in writing, no obligation either way.
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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