15 Marlborough Hill, Harrow, HA1 1TX

Pending PL/1172/26 - Certificate of Lawful Development Existing
Admin / procedural
Council
Harrow 5.4/10
Date received
5 May 2026
Postcode
HA1 1TX
Type
Certificate of Lawful Development Existing

Description

Certificate of lawful development (existing): Use as a small HMO (use class C4)

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Historical activity at this location

26 previous applications on record - archival context, not part of the live application.

This property

Previous applications at this address

2017 Approved
T1 oak (rear garden): reduce to previous reduction points (approx. 3M height reduction)…
P/2383/17
Within ~100m

Nearby activity

2025 Approved
28 Kings Way, Harrow, HA1 1XU
Front porch, Single and two storey side extension, Single and two storey rear extension…
PL/0048/25
2024 Refused
1 Sparkbridge Road, Harrow, HA1 1TJ
First floor rear extension
PL/0248/24
2023 Approved
42 Marlborough Hill, Harrow, HA1 1TY
Conversion of Garage into Habitable Room to enlarge 8 bedroom HMO to 9 Bedroom HMO; Exter…
PL/0414/23
2023 Refused
1 Sparkbridge Road, Harrow, HA1 1TJ
First floor rear extension; external alterations
P/2636/23
2023 Refused
42 Marlborough Hill, Harrow, HA1 1TY
Conversion of Garage into Habitable Room to enlarge 8 bedroom HMO to 9 Bedroom HMO; Exter…
P/0515/23
2023 Approved
46 Kings Way, Harrow, HA1 1XU
Single and two storey rear extension; alterations to roof; rear dormer; rooflights in fro…
P/1120/23
2023 Approved
21 Kings Way, Harrow, HA1 1XT
Single storey side extension ; External alterations (Demolition of attached garage at sid…
P/0520/23
2022 Approved
46 Kings Way, Harrow, HA1 1XU
Single and two storey rear extension; alterations to roof; rear dormer; rooflights in fro…
P/3825/22
2022 Approved
46 Kings Way, Harrow, HA1 1XU
Single storey rear extension: 7.00 metres deep, 4.00 metres maximum height and 3.00 metre…
P/3378/22/PRIOR
2022 Refused
46 Kings Way, Harrow, HA1 1XU
Single storey rear extension: 7.00 metres deep, 4.00 metres maximum height and 3.00 metre…
P/2389/22/PRIOR
2022 Refused
46 Kings Way, Harrow, HA1 1XU
Single storey rear extension: 7.00 metres deep, 4.00 metres maximum height and 3.00 metre…
P/1634/22/PRIOR
2022 Approved
First Floor Flat, 63 Marlborough Hill, Harrow, HA1 1TX
Conversion of first and second floor flat into two flats (1 X 2 bed and 1 X 1 bed); alter…
P/1131/22
2021 Approved
1 Sparkbridge Road, Harrow, HA1 1TJ
Single storey rear extension: 6.00 metres deep, 3.04 metres maximum height and 2.94 metre…
P/4908/21/PRIOR
2021 Approved
51a Marlborough Hill, Harrow, HA1 1TX
Conversion of first and second floor (3 bed) flat into two flats (1 X 2 bed to first floo…
P/4136/21
2021 Approved
58 Kings Way, Harrow, HA1 1XU
Single storey side to rear extension
P/1683/21
2021 Approved
32 Kings Way, Harrow, HA1 1XU
Conversion of dwellinghouse into two flats (1 x 1 Bed and 1 x 3 Bed); single storey rear…
P/0623/21
2021 Approved
58 Kings Way, Harrow, HA1 1XU
Single Storey Rear Extension: 6.00 metres deep, 3.45 metres maximum height, 2.68 metres h…
P/1637/21/PRIOR
2020 Approved
44 Kings Way, Harrow, HA1 1XU
Single storey side to rear extension (demolition of side and rear extensions)
P/4698/20
2020 Refused
44 Kings Way, Harrow, HA1 1XU
Single storey rear extension: 6.00 metres deep, 3.60 metres maximum height and 3.00 metre…
P/0009/21/PRIOR
2020 Refused
32 Kings Way, Harrow, HA1 1XU
Conversion of dwellinghouse into two flats (1 x 1 Bed and 1 x 3 Bed); Separate amenity sp…
P/4418/20
2016 Approved
56 Kings Way, Harrow, HA1 1XU
Single storey front extension incorporating front porch; single and two storey side exten…
P/4293/16
2016 Approved
56 Kings Way, Harrow, HA1 1XU
Single storey front extension; single and two storey side extension; single storey rear e…
P/1362/16
2016 Approved
43 Marlborough Hill, Harrow, HA1 1TX
Conversion of dwellinghouse to two flats; alterations to roof to form end gable with rear…
P/0244/16
2016 Approved
9 Sparkbridge Road, Harrow, HA1 1TJ
Single storey rear extension: extending 6 metres beyond the original rear wall 2.75 Metre…
P/0408/16
2016 Approved
3 Sparkbridge Road, Harrow, HA1 1TJ
Single storey rear extension: extending 6 metres beyond the original rear wall 3.8 Metres…
P/0403/16
Harrow
Planning Authority Score
5.4/10
Average
#125 of 292 councils
Relevant to this application:
Householder decisions

Harrow is faster than most councils at deciding householder applications, ranking #88 out of 292. Harrow is also one of the strictest councils - it refuses more householder applications than almost any other, with only 83% approved vs 90% nationally.

One of the strictest councils
only 83% approved vs 90% nationally
These figures are council-wide context, not a prediction for this application. View full council performance
Harrow decision performance
Based on MHCLG data, 2025
78%
Overall approval rate
Below avg (87%) #270 of 292
83%
Householder approved
Below avg (90%) #255 of 292
74%
Decided in 8 weeks
Above avg (64%) #88 of 292
31%
Extended time limit
Below avg (40%) #60 of 292
49%
Minor dwellings approved
136 decided (1-9 homes)
100%
Major dwellings approved
4 decided (10+ homes)
54%
Change of use approved
24 decided
1,316
Total decisions
287 refused in 2025
Source: MHCLG planning statistics · See full council rankings