99 Blacketts Wood Drive Chorleywood Rickmansworth Hertfordshire WD3 5PS Data via plota.co.uk
Proposal
Certificate of Lawfulness Proposed Development: Conversion of garage into habitable accommodation, alteration to ground floor fenestration Data via plota.co.uk
Application progress
Approved on 6 May 2026 · Delegated Decision · Last checked 5 Jul 2026
Documents 7
Decision & officer reports 2
Statements & assessments 1
Plans & drawings 3
Application forms 1
Site constraints 1
Checked on 11 September 2026. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
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Important details
- Council
- Three Rivers
- Application type
- Certificate of Lawfulness - Proposed Use
- Postcode
- WD3 5PS
- Received
- 1 Apr 2026
- Validated
- 7 Apr 2026
- Ward
- Chorleywood South And Maple Cross
- Parish
- Chorleywood Parish Council
- Case officer
- Show
- Target decision
- 2 Jun 2026
- Decision
- approved
- Decision date
- 6 May 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Mark Biddiss
How this decision compares
Decided in 29 days from validation, 25 days faster than Three Rivers's median of 54 for extensions. Approved, as 91% of extensions here are.
Plota live figures for extensions decided by Three Rivers in the last twelve months, from validation. Three Rivers decision record →
Consultation & key dates
- Env. assessment
- No
Historical activity at this location
27 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
Three Rivers is faster than most councils at deciding householder applications, ranking #30 out of 296. Only 24% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Householder applications are slightly more likely to be approved here (91%) than the national average (90%).
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99 Blacketts Wood Drive Chorleywood Rickmansworth Hertfordshire WD3 5PS
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