Outbuilding and garden room planning approval rate in Haringey
93% of 220 decided outbuilding and garden room applications in Haringey 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.
93%
Approval rate, all years, from 220 decided
220
decided outbuilding and garden room applications in Haringey: 205 approved, 15 refused
94%
Recent rate, decided since 2022, from 134 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 Withdrawn applications are excluded.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 outbuilding and garden room decisions in Haringey
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 |
|---|---|---|---|
| HGY/2025/1916 | 2026 | Refused | Section 73 application to vary Condition 3 of the approved development ref: HGY/2024/0010 (Erection of domestic rear outbuilding) to allow ancillary, rather... 1 Ringwood Avenue, Hornsey, London, N2 9NT |
| HGY/2025/2439 | 2026 | Approved | Erection of single storey outbuilding (part retrospective) Ground Floor Flat A, 3 Church Crescent, Hornsey, London, N10 3NA |
| HGY/2025/2759 | 2026 | Approved | Erection of outbuilding in rear garden for Flat 3 9 Grosvenor Road, Hornsey, London, N10 2DR |
| HGY/2025/2971 | 2026 | Approved | The application seeks approval for a rear patio extension, alterations to the front patio flooring, and the installation of a garden room in the rear garden. 24 Cholmeley Park, Hornsey, London, N6 5EU |
| HGY/2025/0162 | 2025 | Refused | Certificate of Lawfulness for the proposed erection of an outbuilding in the garden to facilitate a swimming pool and BBQ room under Schedule 2, Part 1, Clas... 10 Ringwood Avenue, Hornsey, London, N2 9NS |
| HGY/2025/1018 | 2025 | Refused | Retrospective application for the erection of and continued use of a rear outbuilding ancillary to the main dwelling. 29 Arnold Road, Tottenham, London, N15 4JF |
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 Haringey
- Single-storey rear extension 90%, 1,600 decided
- Two-storey rear extension 82%, 299 decided
- Wraparound extension 92%, 282 decided
- Side extension 89%, 316 decided
- Loft conversion and dormer 86%, 786 decided
- Rooflight 94%, 905 decided
- Porch 83%, 77 decided
- Garage conversion 85%, 34 decided
- Basement 91%, 494 decided
- Window and door 94%, 757 decided