Harpenden is one of the places we work most. We have priced more than ten projects here in the past two years, from single extensions to complete new homes.
Our work in Harpenden.
Project 3104 is a bespoke replacement home across three floors, with a triple-height entrance, charred timber and brick, and a garden studio. Project 3108 reshaped a family home across three floors, with five bedrooms, sunken seating and a raised deck.
Harpenden clients have also left reviews on our Federation of Master Builders profile.
How we can help.
- House extensions and renovations, including work to the existing rooms.
- Bespoke new homes, including replacing an existing house.
- Design and build, if you’re starting without drawings.
- Interior design, from materials and sourcing to installation.
Planning in Harpenden.
Planning applications in both Harpenden and St Albans are decided by St Albans City and District Council. It has adopted a new Local Plan, and it has said that some applications are currently taking longer than normal, so allow for that in your timing.
Some extensions can go ahead under permitted development, without a full planning application. For a single-storey rear extension, the usual limit is 4 metres on a detached house and 3 metres on other houses, and up to 4 metres high. A prior approval process can allow up to 8 metres and 6 metres, but not in a conservation area. Other conditions apply, and the rules depend on your house and its history.
Building regulations are separate. Most extensions need approval, even where planning permission isn’t needed.
Two local points are worth checking early:
- The Harpenden Neighbourhood Plan. Made in February 2019, it covers Harpenden Town and Harpenden Rural parishes and forms part of the council’s development plan.
- The Harpenden Conservation Area. It’s one of 19 in the district. Permitted development rights are more limited in a conservation area, and some areas also have Article 4 directions that remove them. The council’s conservation areas page explains how to check your address.
What will it cost?
See what we have priced recently, what those figures include and what changes them.
Common questions.
Do you only work on large projects in Harpenden?
No. We have priced extensions as well as whole-home remodels and new homes here. Tell us what you have in mind and we’ll say honestly whether we’re the right fit.
Do I need planning permission for an extension in Harpenden?
It depends on the size and position of the extension, your house and whether a conservation area or Article 4 direction applies. Check before you commit to a design.
Can you work from my architect’s drawings?
Yes. If your technical package is developed, our construction service can work from it. If not, design and build brings the design and the budget together.