Loft conversion and dormer planning approval rate in Dacorum
88% of 413 decided loft conversion and dormer applications in Dacorum were approved.
Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.
A similar project nearby can help you understand the council's decisions. Its outcome does not establish what will be acceptable at your address.
88%
Approval rate, all years, from 413 decided
413
decided loft conversion and dormer applications in Dacorum: 362 approved, 51 refused
86%
Recent rate, decided since 2022, from 145 decided
How to read these rates
These are historical outcomes for the applications in our archive, not the chance of approval for your property. Compare the same project type and read the decided count alongside each percentage.
About the planning data
Rate = approved divided by approved plus refused, using the decisions in our classified archive. Rates are withheld as unknown where fewer than 8 records of that project type were decided. Withdrawn applications are excluded.
Recent means records dated 2022 or later. Records without a year are excluded from the recent rate but remain in the all-years figure. Historical coverage varies by council, and duplicate application references may remain in the archive.
Approval rates from 2,343,419 decisions we classified across 181 councils in England. The wider 20.6 million application catalogue is accessible through PlanIT; it is not the dataset used to calculate these percentages.
Read the full methodology and coverage notes.
Project types and outcomes are classified from council records. Check the original application and decision notice before relying on an individual example. A page rebuild does not mean every council record has just been refreshed.
Example loft conversion and dormer decisions in Dacorum
These examples deliberately include approved and refused applications where available. They are not a representative sample or a list of the latest decisions. Look up each reference on the council's planning search to read the plans and decision notice.
| Reference | Year | Decision | Application |
|---|---|---|---|
| 25/02934/FHA | 2026 | Approved | Rear dormer loft conversion that involves raising the roof and replacing the solar panels and associated works. 43 Lombardy Drive Berkhamsted Hertfordshire HP4 2LQ |
| 25/03024/FHA | 2026 | Approved | Conversion of roof space into habitable room with proposed rear flat roof dormer 3 Albion Mews Belswains Lane Hemel Hempstead Hertfordshire HP3 9PP |
| 25/03059/FHA | 2026 | Approved | Rear ground floor extension and rear loft dormer 94 Fox Road Wigginton Tring Hertfordshire HP23 6EE |
| 24/02933/FHA | 2025 | Refused | Raising part of roof, loft conversion with rear dormers, alterations to fenestration, paint existing face brick. Moorcrafts Toms Hill Aldbury Tring Hertfordshire HP23 5SD |
| 24/00738/FUL | 2024 | Refused | Loft conversion including provision of two front dormer windows 376A High Street Berkhamsted Hertfordshire HP4 1HU |
| 24/00972/FHA | 2024 | Refused | Demolition of existing garage and workshop and construction of a single storey 1 bedroom annex/ extension with accommodation in roof space with a rear dormer. 2 Brickmakers Lane Hemel Hempstead Hertfordshire HP3 8NY |
About the planning data
Checked against 20.6 million UK planning applications on file across 420 planning authorities. Approval rates from 2,343,419 decisions we classified across 181 councils in England.
Other project types in Dacorum
- Single-storey rear extension 95%, 1,607 decided
- Two-storey rear extension 92%, 841 decided
- Wraparound extension 93%, 266 decided
- Side extension 94%, 775 decided
- Rooflight 94%, 396 decided
- Outbuilding and garden room 89%, 399 decided
- Porch 95%, 208 decided
- Garage conversion 95%, 209 decided
- Basement 87%, 79 decided
- Window and door 93%, 407 decided