Home Counties · Hertfordshire
Builders in Hertfordshire
Extensions, loft conversions, refurbishments and new builds across AL, EN, HP, SG, WD. Fixed quotes, in-house trades, one site manager.
Building in Hertfordshire
From our base in Abbots Langley, ICV Buildings covers St Albans, Hemel Hempstead, Rickmansworth, Harpenden, Hatfield, Welwyn and Borehamwood for extensions, loft conversions, new builds and full refurbishments.
Postcodes covered
Local knowledge
What we know about building in Hertfordshire
Housing stock
Period houses in St Albans and Harpenden, new-town homes in Hemel Hempstead and Welwyn Garden City, large detached properties in Radlett, Chorleywood and Rickmansworth, and rural cottages and barns.
Planning and permitted development
Hertfordshire is a patchwork of ten district councils. St Albans has extensive conservation areas, Welwyn Garden City has estate management rules controlling external alterations, and Green Belt restricts extension size across much of the county. We check the rules for your parish before you commit.
Most requested
Our services in Hertfordshire
Extensions in Hertfordshire
Expand your space — upwards, outwards, or both.
New Builds in Hertfordshire
Premium new build construction from groundworks to handover.
Renovations in Hertfordshire
Complete property transformations, delivered to perfection.
Architectural Design in Hertfordshire
Expert design and planning support from concept to consent.
Ground Works in Hertfordshire
Solid foundations — drainage, excavation, and below-ground structures.
- Do you build new houses in Hertfordshire?
- Yes. We deliver single-plot new builds and small developments from groundworks to handover, including replacement dwellings on Green Belt plots where volume limits apply.
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