The scope for this project was simple - turn an unused outbuilding into a beautiful guest house. This old pump house had seen many different alterations over the decades and it was a challenge to not only bring it up to modern day standards but also retain it's charm.
We took this building back to a bare shell and rebuilt the interior to an unrecognisable finish. The exterior was carefully altered to provide new entrances and window openings whilst retaining the original look of the period brickwork. We mixed old with new with smart features like the app controlled Velux windows with inbuilt rain sensors.
We took this project from start to finish including the kitchen, bathroom, flooring, patio and estate railings. If you have something similar or have a complex project and are looking for the right team, call us today.
Read lessAnother fantastic job completed by the team
👏🏻👏🏻👏🏻👏🏻
You know what we say “ The differences is in the detail”

We are a local building company based in Welwyn Garden City and Established in 2013. We work in Hertfordshire and the surrounding areas carrying out all types of building work including extensions, renovations, landscaping and garage/loft conversions.
We pride ourself on offering full start to finish management and our ability to deal with every aspect of your project.
For all enquiries:
Email us: [email protected]
Or call us: 0800 612 5859
Lemsford Building & Construction Ltd
”The difference is in the detail”
Safety hoarding in place re using the the old upvc doors 
We are a local building company based in Welwyn Garden City and Established in 2013. We work in Hertfordshire and the surrounding areas carrying out all types of building work including extensions, renovations, landscaping and garage/loft conversions.
We pride ourself on offering full start to finish management and our ability to deal with every aspect of your project.
For all enquiries:
Email us: [email protected]
Or call us: 0800 612 5859
Lemsford Building & Construction Ltd
”The difference is in the detail”
The extension was built over the existing alleyway and garage.
Involving some complex steel work
New Electric roller shutter garage door
New composite and UPVC windows
Master bedroom
Ensuite
We are a local building company based in Welwyn Garden City and Established in 2013. We work in Hertfordshire and the surrounding areas carrying out all types of building work including extensions, renovations, landscaping and garage/loft conversions.
We pride our self on offering full start to finish management and our ability to deal with every aspect of your project.
For all enquiries:
Email us: [email protected]
Or call us: 0800 612 5859
Lemsford Building & Construction Ltd
”The difference is in the detail”
Another great job done by our team.👌🏼
We are a local building company based in Welwyn Garden City and Established in 2013. We work in Hertfordshire and the surrounding areas carrying out all types of building work including extensions, renovations, landscaping and garage/loft conversions.
We pride ourself on offering full start to finish management and our ability to deal with every aspect of your project.
For all enquiries:
Email us: [email protected]
Or call us: 0800 612 5859
Lemsford Building & Construction Ltd
”The difference is in the detail”
The red brick house.
Old main roof getting striped.
Brickwork close to plate height
Second lift steel posts in place ready for the cranked steels.
The roof is going on
Photos of the 1st 2nd and 3rd floor
Dormer windows front and back
Roof is felted and battened on this one
Tiles soon
What a great team we have
Loft layout coming along nicely
Side extension and garage conversion built
“The difference is in the detail!“
Steels installed
First fix electrics
First fix plumbing
Ready for new sand stone patio
And floors screeded
Block driveway completed and lawn turfed.
Nice traditional block work 👌🏼
We built an extension here a year ago it’s nice to be back again. 😊...
Here's our review - publish where you want. "Lemsford Building and Construction use the tagline “The Difference Is In the Detail” and we couldn’t agree more. We are absolutely delighted with our rear extension, new kitchen and patio and all of the crew were professional, helpful and detailed in their work. Nothing was too much trouble. They made a number of suggestions, all of which added the final touch to our designs. Some suggestions were just small things but made a huge difference to the end finish. Thanks for a great job done and we look forward to working with you all again."
Lemsford Building and construction ltd have just completed my dream extension! All my neighbours commented on how polite and tidy our builders were and any queries or concerns I had during the build were listened to and easily dealt with. Everything has been finished to a very high standard and I couldn’t recommend Lemsford building highly enough! Cheers Matt!