Postcode record · Haringey
N10 3JT.
N10 3JT has 36 known premises and 29 planning records — 23 approved of 26 decided (88.5%). 12 EPC records.
Postcode N10 3JT · boundary not held, centred on the postcodeApprovedRefusedOther29 exact29 on the map — every match
At a glance · this postcodeHaringey profile →
36
Premises
known addresses (UPRNs)
29
Applications
26 decided
88.5%
Approval rate
23 approved · 3 refused
12
EPC records
ratings C 3 · D 7 · E 2
29
Mapped applications
inside the postcode shape
Postcode unit boundary from Ordnance Survey; premises and applications inside it. Aggregates describe the area, not any single premises.
Property
What is it?
N10 3JT has 36 known premises and 29 planning records — 23 approved of 26 decided (88.5%). 12 EPC records.
Premises (18 of 36 shown)
Name
Details
UPRN 10003980889
UPRN 10022942090
UPRN 100021209398
UPRN 100021209400
UPRN 100021209402
UPRN 100021209405
UPRN 100021209407
UPRN 100021209409
UPRN 100021209410
UPRN 100021209412
UPRN 10003980889
UPRN 10022942090
UPRN 100021209398
Show all 10 rows
UPRN 100021209400
UPRN 100021209402
UPRN 100021209405
UPRN 100021209407
UPRN 100021209409
UPRN 100021209410
UPRN 100021209412
Planning
What happened?
29 planning applications across the postcode; 23 approved of 26 decided (88.5%). Latest 29 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Replacement of all existing timber windows with double glaze windows, replacement of existing rear veranda, installation of a new front dormer and two rear dormer windows.
31 Onslow Gardens Hornsey London N10 3JT · premises record
—
Approved
2025-07-30
Demolition of existing ground floor rear extension and first floor conservatory. Erection of a single storey rear and side wraparound extension, a first floor rear extension and a roof dormer on the rear outrigger. Enlargement to existing rear dormer and alteration to front dormer.
7 Onslow Gardens Hornsey London N10 3JT · premises record
—
Approved
2025-04-30
Non-material amendment to planning application ref: HGY/2024/3042 to alter the pitched corner on the flank wall of the approved extension.
7 Onslow Gardens Hornsey London N10 3JT · premises record
—
Refused
2025-04-11
Demolition of existing ground floor rear extension and first floor conservatory. Erection of a single storey rear and side extension, a first floor rear extension and a roof dormer on the rear outrigger. Enlargement to existing rear dormer and alteration to front dormer.
7 Onslow Gardens Hornsey London N10 3JT · premises record
Householder planning permission
Approved
2025-01-09
Variation of condition 4 (bike storage) of planning permission HGY/2023/2202.
13 Onslow Gardens Hornsey London N10 3JT · premises record
Removal/variation of conditions
Approved
2024-09-11
Retention of use of the property as a large HMO (sui generis), including its reduction from 8 bed 16 person HMO to 7-bed 9 person HMO.
13 Onslow Gardens Hornsey London N10 3JT · premises record
—
Approved
2024-03-28
Formation of new crossover and off street parking to front of property
15 Onslow Gardens Hornsey London N10 3JT · premises record
—
Approved
2024-03-06
Use of existing outbuilding, to provide sleeping accommodation ancillary to existing property.
13 Onslow Gardens Hornsey London N10 3JT · premises record
—
Refused
2023-10-27
Construction of an outbuilding
13 Onslow Gardens Hornsey London N10 3JT · premises record
—
Approved
2023-05-09
Erection of a single storey ground floor side infill to existing outrigger, lower ground floor extension into the sloping landscape (basement excavation), reconstruction of existing outrigger extension, rear flat dormer to replace existing hipped dormer, and alterations to fenestration.
19 Onslow Gardens London N10 3JT · premises record
—
Approved
2022-10-27
Replacement of all existing timber windows with double glaze windows, replacement of existing rear veranda, installation of a new front dormer and two rear dormer windows.
31 Onslow Gardens Hornsey London N10 3JT · premises record
Approved
2025-07-30
More
—
Demolition of existing ground floor rear extension and first floor conservatory. Erection of a single storey rear and side wraparound extension, a first floor rear extension and a roof dormer on the rear outrigger. Enlargement to existing rear dormer and alteration to front dormer.
7 Onslow Gardens Hornsey London N10 3JT · premises record
Approved
2025-04-30
More
—
Non-material amendment to planning application ref: HGY/2024/3042 to alter the pitched corner on the flank wall of the approved extension.
7 Onslow Gardens Hornsey London N10 3JT · premises record
Refused
2025-04-11
More
—
Show all 10 rows
Demolition of existing ground floor rear extension and first floor conservatory. Erection of a single storey rear and side extension, a first floor rear extension and a roof dormer on the rear outrigger. Enlargement to existing rear dormer and alteration to front dormer.
7 Onslow Gardens Hornsey London N10 3JT · premises record
Approved
2025-01-09
More
Householder planning permission
Variation of condition 4 (bike storage) of planning permission HGY/2023/2202.
13 Onslow Gardens Hornsey London N10 3JT · premises record
Approved
2024-09-11
More
Removal/variation of conditions
Retention of use of the property as a large HMO (sui generis), including its reduction from 8 bed 16 person HMO to 7-bed 9 person HMO.
13 Onslow Gardens Hornsey London N10 3JT · premises record
Approved
2024-03-28
More
—
Formation of new crossover and off street parking to front of property
15 Onslow Gardens Hornsey London N10 3JT · premises record
Approved
2024-03-06
More
—
Use of existing outbuilding, to provide sleeping accommodation ancillary to existing property.
13 Onslow Gardens Hornsey London N10 3JT · premises record
Refused
2023-10-27
More
—
Construction of an outbuilding
13 Onslow Gardens Hornsey London N10 3JT · premises record
Approved
2023-05-09
More
—
Erection of a single storey ground floor side infill to existing outrigger, lower ground floor extension into the sloping landscape (basement excavation), reconstruction of existing outrigger extension, rear flat dormer to replace existing hipped dormer, and alterations to fenestration.
19 Onslow Gardens London N10 3JT · premises record
Approved
2022-10-27
More
—
Building control
Building-control records are not yet collected for Haringey — the register is being gathered borough by borough (held so far: Lambeth, Brent, Ealing, Westminster, City and others).
Place
What affects it?
No mapped designation intersects a premises point in this postcode in the current build. Open any premises above for its own designation record.
Nearby postcodes and streets
Walk to the next area — linked where the Atlas has a record for it (pilot borough only for now).
People
Who is involved?
Named on the latest 29 applications in this postcode — the party who applied, not the owner or occupier.
Name
Details
Applicant on 1 application
Applicant on 1 application
Agent on 1 application
Agent on 1 application
Case officer on 1 application
Case officer on 1 application
Applicant on 1 application
Applicant on 1 application
Agent on 1 application
Show all 6 rows
Agent on 1 application
Case officer on 1 application
Case officer on 1 application
Development
What could it become?
Planning precedent29 applications and 29 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy12 EPC records; ratings C: 3, D: 7, E: 2.
What is not assertedNo capacity, value or ownership claim is made at area level; those belong to individual premises records and their evidence.
Intent signals
The Developer PlanOwnership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
Thinking about a project here?
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.