Postcode record · Hounslow
TW3 1NU.
TW3 1NU has 59 known premises and 4 planning records — 3 approved of 4 decided (75%). 25 EPC records.
Postcode TW3 1NU · boundary not held, centred on the postcodeApprovedRefusedOther4 exact22 approximate26 on the map — every match
At a glance · this postcodeHounslow profile →
59
Premises
known addresses (UPRNs)
4
Applications
4 decided
75%
Approval rate
3 approved · 1 refused
25
EPC records
ratings C 9 · D 13 · E 3
26
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?
TW3 1NU has 59 known premises and 4 planning records — 3 approved of 4 decided (75%). 25 EPC records.
Premises (18 of 59 shown)
Name
Details
UPRN 10014073728
UPRN 10014073729
UPRN 10091148547
UPRN 10091148548
UPRN 10091148965
UPRN 10091149215
UPRN 10091692097
UPRN 100021543352
UPRN 100021543353
UPRN 100021543355
UPRN 10014073728
UPRN 10014073729
UPRN 10091148547
Show all 10 rows
UPRN 10091148548
UPRN 10091148965
UPRN 10091149215
UPRN 10091692097
UPRN 100021543352
UPRN 100021543353
UPRN 100021543355
Planning
What happened?
4 planning applications across the postcode; 3 approved of 4 decided (75%). Latest 4 shown.
Reference
Proposal · address
Type
Outcome
Date · distance
Conversion of dwellinghouse into two self contained flats & erection of roof extension incorporating roof lights to front
41 Cecil Road, Hounslow, Middlesex, TW3 1NU · premises record
PF-Full Applications
Approved
2002-08-01
Erection of single storey flank/rear extension to flats
FLAT 1 7 7 Cecil Road, Hounslow, Middlesex, TW3 1NU · premises record
PF-Full Applications
Approved
1998-09-10
Erection of part two storey rear extension to both flats
FLAT 1 7 7 Cecil Road, Hounslow, Middlesex, TW3 1NU · premises record
PF-Full Applications
Refused
1998-05-12
Conversion of dwellinghouse to form two self contained flats.
13 Cecil Road, Hounslow, Middlesex, TW3 1NU · premises record
PF-Full Applications
Approved
1997-09-30
Conversion of dwellinghouse into two self contained flats & erection of roof extension incorporating roof lights to front
41 Cecil Road, Hounslow, Middlesex, TW3 1NU · premises record
Approved
2002-08-01
More
PF-Full Applications
Erection of single storey flank/rear extension to flats
FLAT 1 7 7 Cecil Road, Hounslow, Middlesex, TW3 1NU · premises record
Approved
1998-09-10
More
PF-Full Applications
Erection of part two storey rear extension to both flats
FLAT 1 7 7 Cecil Road, Hounslow, Middlesex, TW3 1NU · premises record
Refused
1998-05-12
More
PF-Full Applications
Show all 4 rows
Conversion of dwellinghouse to form two self contained flats.
13 Cecil Road, Hounslow, Middlesex, TW3 1NU · premises record
Approved
1997-09-30
More
PF-Full Applications
Building control
Building-control records are not yet collected for Hounslow — the register is being gathered borough by borough (held so far: Lambeth, Brent, Ealing, Westminster, City and others).
Place
What affects it?
Every mapped designation touching a premises in this postcode, with how many of its 59 premises each one covers.
Designation
Coverage
Article 4 Direction Area
Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction · reference A4D.2 · covers 59 of 59 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Change of use or development that would result in new dwellings (Class MA/ZA) · reference A4D.3 · covers 59 of 59 premises. Some normally permitted changes may require planning permission.
Archaeological Priority Area
A roadside village from the Saxon period, it was the site of a religious house, the Priory of the Brethren of the Holy Trinity, founded in 1296. It developed as an important coaching station on the road to the West. · reference 78442 · covers 37 of 59 premises. Groundworks may require archaeological assessment or investigation.
Archaeological Priority Area
Summary and Definition The Archaeological Priority Area follows the projected line of the London to Silchester Roman road as it travels through the Borough of Hounslow. This is one of the major Roman roads radiating out west f · reference 220942 · covers 31 of 59 premises. Groundworks may require archaeological assessment or investigation.
Article 4 Direction Area
Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction · reference A4D.2 · covers 59 of 59 premises. Some normally permitted changes may require planning permission.
Article 4 Direction Area
Change of use or development that would result in new dwellings (Class MA/ZA) · reference A4D.3 · covers 59 of 59 premises. Some normally permitted changes may require planning permission.
Archaeological Priority Area
A roadside village from the Saxon period, it was the site of a religious house, the Priory of the Brethren of the Holy Trinity, founded in 1296. It developed as an important coaching station on the road to the West. · reference 78442 · covers 37 of 59 premises. Groundworks may require archaeological assessment or investigation.
Show all 4 rows
Archaeological Priority Area
Summary and Definition The Archaeological Priority Area follows the projected line of the London to Silchester Roman road as it travels through the Borough of Hounslow. This is one of the major Roman roads radiating out west f · reference 220942 · covers 31 of 59 premises. Groundworks may require archaeological assessment or investigation.
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?
Applicants, agents and officers are attached per application; the current area build carries references only — the borough entity run adds the names here.
Development
What could it become?
Planning precedent4 applications and 26 mapped decisions in this postcode — precedent for what has been permitted and refused here.
Energy25 EPC records; ratings C: 9, D: 13, E: 3.
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
Planning Atlas ProOwnership, finance and market signals recorded at addresses in this postcode — each with date and source. Signals are evidence of change, not a prediction.
6 intent signals recorded in this postcode
Charge registered · Long hold · HMO licensed
Subscribe to see the signals →Thinking about a project here?
How long would a planning application take here? →
Hounslow's real decision times and approval rates, measured from the record — not the statutory target.
Why do applications around here get refused? →
The most common refusal grounds in Hounslow, by year and scheme type — the risks to know before applying.
Boundary: OS Postcode Unit areas (Ordnance Survey), 2026-08-14. Planning records: canonical stage2. EPC: EPC register. Premises: OS AddressBase / UPRN.