Updated 22 October 2026 · 126 new leads in the last 30 days
Access construction leads in Dacorum by tracking newly submitted planning applications. See which homeowners and developers across Hemel Hempstead and the borough’s towns are preparing extensions, loft conversions, and new builds, and get in touch before they begin shortlisting builders.
Data sourced from Dacorum Borough Council planning records and refreshed regularly.
126
New Leads (30 Days)
£108,036
Average Project Value
34
High Value Projects
Over £100k
Extensions
Most Common Project
Dacorum's largest town, Hemel Hempstead, was one of the original Mark I New Towns designated after the Second World War, and its distinctive split between the older Hemel Hempstead Old Town and the planned New Town — home to the famous multi-circle 'Magic Roundabout' junction — still shapes the borough's housing mix today. That New Town housing generates a steady, high-volume stream of extensions, loft conversions, and garage conversions. Berkhamsted, a historic market town built around its Norman castle ruins and the Grand Union Canal, has a well-preserved conservation area where alterations to older buildings often need planning permission rather than falling under permitted development. Tring, on the borough's western edge, sits at the foot of the Chilterns National Landscape and is home to the Natural History Museum at Tring, with a mix of Georgian market-town housing and semi-rural properties along the Chiltern fringe.
Here's a breakdown of the most common types of construction projects in Dacorum over the past 30 days.
In Dacorum, Extensions are the most common project type, appearing in 93 of the 126 leads tracked in the last 30 days, with Porches also showing consistent demand alongside Garden Rooms. Projects can fall into more than one category, so these figures don't need to add up to the total.
The architects and planning consultants submitting the most construction-related applications in Dacorum, based on recent planning records.
Understanding typical project values in Dacorum helps you prioritise the most profitable leads and manage your workload effectively. These ranges are a general guide to the scale of work involved — individual project costs vary by design, specification, and site conditions.
Higher-value projects are often found in Berkhamsted and Tring, where period properties and Chilterns-fringe locations support larger renovation budgets.
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Extension | Blue Court Mark Road Hemel Hempstead Hertfordshire HP2 7DN | £250k–£1m | Change of use of skip hire yard and warehouse to asbestos storage facility with ancillary office space and extension to existing warehouse. | Approved |
| Single Storey Rear Extension | 78 Alexandra Road Hemel Hempstead Hertfordshire HP2 4AQ | £50k–£100k | Single-storey rear extension to garage and creation of an annex. | Approved |
| Double Storey Extension | Fullers Cross Oak Road Berkhamsted Hertfordshire HP4 3NA | £50k–£100k | Part single, part double storey extension with new porch, fenestration and brickwork alterations and landscaping. | Approved |
| Single Storey Front Extension | 5 Tile Kiln Crescent Hemel Hempstead Hertfordshire HP3 8NT | £50k–£100k | Single-storey rear extension and new front porch. | Approved |
| Wrap-Around Extension | 8 Green View Close Bovingdon Hemel Hempstead Hertfordshire HP3 0LE | £100k–£250k | Part single-, part two-storey side and rear extension with changes to external cladding and alterations to garage and dormer roofs. | Approved |
Extension
Blue Court Mark Road Hemel Hempstead Hertfordshire HP2 7DN
Change of use of skip hire yard and warehouse to asbestos storage facility with ancillary office space and extension to existing warehouse.
Single Storey Rear Extension
78 Alexandra Road Hemel Hempstead Hertfordshire HP2 4AQ
Single-storey rear extension to garage and creation of an annex.
Double Storey Extension
Fullers Cross Oak Road Berkhamsted Hertfordshire HP4 3NA
Part single, part double storey extension with new porch, fenestration and brickwork alterations and landscaping.
Single Storey Front Extension
5 Tile Kiln Crescent Hemel Hempstead Hertfordshire HP3 8NT
Single-storey rear extension and new front porch.
Wrap-Around Extension
8 Green View Close Bovingdon Hemel Hempstead Hertfordshire HP3 0LE
Part single-, part two-storey side and rear extension with changes to external cladding and alterations to garage and dormer roofs.
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Loft Conversion | 16 Watford Road Kings Langley Hertfordshire WD4 8EA | £100k–£250k | Part two-storey/part single-storey rear and two-storey front extensions with roof extension and loft conversion. | Approved |
| Loft Conversion | 10 The Apple Orchard Hemel Hempstead Hertfordshire HP2 5JQ | £50k–£100k | Ground floor remodelling with a small rear extension and loft conversion. | Approved |
| Loft Conversion | Rose Farm House The Common Chipperfield Kings Langley Hertfordshire WD4 9BY | £50k–£100k | Single- and double-storey rear extensions, front-facing dormer, new bay window and front porch. | Approved |
| Loft Conversion | 16 Ridgeway Close Hemel Hempstead Hertfordshire HP3 9TB | £100k–£250k | Part two-storey and part single-storey rear and side extension with hip-to-gable loft conversion and rear dormer. | Withdrawn |
| Loft Conversion | 150 Chaulden Lane Hemel Hempstead Hertfordshire HP1 2BT | £100k–£250k | Gable-end loft conversion with front dormer and construction of a garden room/gym in the rear garden. | Approved |
Loft Conversion
16 Watford Road Kings Langley Hertfordshire WD4 8EA
Part two-storey/part single-storey rear and two-storey front extensions with roof extension and loft conversion.
Loft Conversion
10 The Apple Orchard Hemel Hempstead Hertfordshire HP2 5JQ
Ground floor remodelling with a small rear extension and loft conversion.
Loft Conversion
Rose Farm House The Common Chipperfield Kings Langley Hertfordshire WD4 9BY
Single- and double-storey rear extensions, front-facing dormer, new bay window and front porch.
Loft Conversion
16 Ridgeway Close Hemel Hempstead Hertfordshire HP3 9TB
Part two-storey and part single-storey rear and side extension with hip-to-gable loft conversion and rear dormer.
Loft Conversion
150 Chaulden Lane Hemel Hempstead Hertfordshire HP1 2BT
Gable-end loft conversion with front dormer and construction of a garden room/gym in the rear garden.
| Project Type | Area | Est. Value | Description | Status |
|---|---|---|---|---|
| Garden Room | Heritage Architectural Antiques Wood Lane Hemel Hempstead Hertfordshire HP2 4TL | £100k–£250k | Change of use of building to a vehicle repair workshop and MOT garage. | Approved |
| Garden Room | 118 Hempstead Road Kings Langley Hertfordshire WD4 8AL | Under £25k | Outbuilding built in 2020/21 now used as an office and/or storage space. | Approved |
| Porch | Ashridge Management College Ashridge House Ashridge Park Little Gaddesden Berkhamsted Hertfordshire HP4 1NS | £50k–£100k | Application for a new timber open porch structure at a listed building. | Approved |
| Dropped Kerb | 6 Cotterells Hill Hemel Hempstead Hertfordshire HP1 1JD | Under £25k | Dropped kerb and front garden reconfiguration to provide off-street parking. | Approved |
| Heritage | 44 Stocks Road Aldbury Hertfordshire HP23 5RU | £25k–£50k | Replace cement render with lime render and lath on gable end and side, and replace decaying timber beams with oak timbers on the listed building. | Approved |
Garden Room
Heritage Architectural Antiques Wood Lane Hemel Hempstead Hertfordshire HP2 4TL
Change of use of building to a vehicle repair workshop and MOT garage.
Garden Room
118 Hempstead Road Kings Langley Hertfordshire WD4 8AL
Outbuilding built in 2020/21 now used as an office and/or storage space.
Porch
Ashridge Management College Ashridge House Ashridge Park Little Gaddesden Berkhamsted Hertfordshire HP4 1NS
Application for a new timber open porch structure at a listed building.
Dropped Kerb
6 Cotterells Hill Hemel Hempstead Hertfordshire HP1 1JD
Dropped kerb and front garden reconfiguration to provide off-street parking.
Heritage
44 Stocks Road Aldbury Hertfordshire HP23 5RU
Replace cement render with lime render and lath on gable end and side, and replace decaying timber beams with oak timbers on the listed building.
Data sourced from Dacorum Borough Council planning records and refreshed regularly.
A snapshot of recent construction opportunities across Dacorum.
Heritage Architectural Antiques Wood Lane Hemel Hempstead Hertfordshire HP2 4TL
Change of use of building to a vehicle repair workshop and MOT garage.
118 Hempstead Road Kings Langley Hertfordshire WD4 8AL
Outbuilding built in 2020/21 now used as an office and/or storage space.
Blue Court Mark Road Hemel Hempstead Hertfordshire HP2 7DN
Change of use of skip hire yard and warehouse to asbestos storage facility with ancillary office space and extension to existing warehouse.
Ashridge Management College Ashridge House Ashridge Park Little Gaddesden Berkhamsted Hertfordshire HP4 1NS
Application for a new timber open porch structure at a listed building.
Examples of projects at an early stage before wider competition builds.
Unlock full details and connect with homeowners while projects are still taking shape.
Get Access Now44%
Approved
56%
Pending
0%
Refused
In Dacorum, 44% of planning applications are approved, 56% are still pending, and 0% are refused. Pending applications can give builders an opportunity to make contact while projects are still at an early stage.
Earlier contact usually means less competition.
Based on planning applications submitted over the last 30 days.
Among applications tracked by BuildAlert in Dacorum, the median time from submission to decision is 7 weeks. Smaller projects like extensions tend to be approved more quickly, while larger developments can take longer.
Based on approved applications with recorded decision dates over the last 3 months.
In Dacorum, the vast majority (83%) of planning applications are domestic projects such as extensions and loft conversions. Commercial developments make up a smaller portion but can offer higher-value opportunities for larger contractors.
Hemel Hempstead's New Town housing stock supports a high volume of standard extension and loft conversion work, reflecting a large stock of similarly-aged post-war housing built for London overspill. Berkhamsted's conservation-protected canal-side housing commands higher-spec renovation budgets, while Tring's Chilterns-fringe setting supports a mix of characterful renovation work on older properties alongside standard extensions on its more modern streets. The borough's split character — New Town estates alongside protected historic market towns — gives builders exposure to both high-volume and high-spec ends of the market.
Planning applications highlight upcoming work, giving you a chance to get in touch before builders are shortlisted.
Approved applications can be particularly valuable because the project has cleared a major planning hurdle and may be moving closer to construction.
Filter by estimated project value to focus your outreach on jobs that match the size and type of work your business takes on.
Three simple steps to start winning more construction work in Dacorum.
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