Construction in North Mymms: New Builds & Structural Work
New build homes, extensions and structural alterations in North Mymms, built by an experienced team based in Hemel Hempstead.
New build homes, extensions and structural alterations in North Mymms, built by an experienced team based in Hemel Hempstead.
Planning construction in North Mymms? Call us on 01442 976 112
Last reviewed: by R Gabriel Carpentry & Builders
R Gabriel Carpentry & Builders takes on construction in North Mymms of every size: new build houses, single and double-storey extensions, conservatories and load-bearing wall removal. We're based about 11 miles away in Hemel Hempstead and keep every trade in-house. Call 01442 976 112 for a free, no-obligation written quote.
At a glance
For construction in North Mymms, we handle the structural work and everything that follows it. Typical projects include:
Find out more about our new build service, or read our guide to removing a load-bearing wall. For other work, see our pages on builders in North Mymms and carpentry in North Mymms.
North Mymms (sometimes spelt North Mimms) is the parish between Hatfield and Potters Bar that includes Brookmans Park and Welham Green. Homes in North Mymms include interwar and post-war homes and large detached houses in Brookmans Park.
Larger detached properties lend themselves to ambitious projects such as double-storey extensions or replacement homes. Green Belt policy around North Mymms limits new building and large extensions, so a well-argued design and planning case matters. With 1930s semis, a hip-to-gable loft conversion and a rear extension can transform the space, and both need careful structural design.

Most construction projects in North Mymms need Building Regulations approval, and many also need planning permission. New houses always need full planning permission, while some extensions can use permitted development.
Planning applications in North Mymms are decided by Welwyn Hatfield Borough Council. Much of the countryside around North Mymms is Metropolitan Green Belt. Permitted development still applies to most houses, but applications for larger extensions are judged on whether they are disproportionate to the original building.
If the work affects a shared wall or involves digging near a neighbour's foundations, the Party Wall etc. Act 1996 applies too; see our guide to the Party Wall Act and the GOV.UK guide to Building Regulations approval.
We line up approvals, structural calculations and any party wall notices before work starts; see how our build process works.
Construction in North Mymms needs a builder you can trust with structure, safety and budget. This is what you get with us:
“We have used them twice, exceptional overall - very good after care and communication.”
Yes. North Mymms is about 11 miles from our base in Hemel Hempstead and sits well within the area we cover, along with nearby Hatfield and South Mimms.
Often, yes, if the plot allows. A two-storey side extension always needs planning permission, and the design has to work with the existing hipped roof and the neighbouring house.
Yes. We build bespoke new homes, including replacements for existing houses, once full planning permission is in place. In the Green Belt, a replacement home must not be materially larger than the one it replaces.
Yes. We build bespoke new homes, starting with a consultation on layout, specification and finishes. A new house needs full planning permission from Welwyn Hatfield Borough Council and Building Regulations approval, and we build to the approved drawings. Much of the land around North Mymms is Metropolitan Green Belt, where new homes face strict planning tests.
Yes. Removing a load-bearing wall needs a structural engineer's calculations for the new beam and Building Regulations approval. We prop the structure safely, install the beam on padstones and make good, so the room is ready to decorate.
If the work affects a shared wall, or you dig foundations within 3 metres of a neighbour's building (6 metres in some cases), the Party Wall etc. Act 1996 applies. You must serve notice: 2 months before work on a party wall and 1 month before excavations.
We take on everything from internal alterations and single-storey extensions to double-storey extensions and complete new homes. No job is too big or small, so tell us what you're planning and we'll arrange a free visit.
As well as North Mymms, we cover nearby areas such as construction in Hatfield, construction in South Mimms, construction in Colney Heath and construction in Ridge. See every place on our areas we cover page.
Planning work in North Mymms? Call 01442 976 112 or 07799 800 880, message us on WhatsApp or send us your project details for a free, no-obligation quote.
Let's talk about your project in North Mymms
Get in touch today to arrange a free consultation and see how we can bring your project to life, from concept to completion.