For Builders in Harrow

507 jobs just hit Harrow planning. None of those homeowners know you exist yet.

PlanPost turns new planning applications into construction leads in Harrow: we spot each relevant application the day it's filed, then print and post a branded letter from you to the homeowner before they've even started looking for a builder. Review each lead, or set it to auto-send the lot. Your letter lands on a doormat before anyone else's van turns up.

  • 507 applications in Harrow in the last 90 days
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Live data

Live leads in Harrow you could be winning

Sample of the planning applications builders are quoting on right now. Last 90 days.

507 live applicationsMostly Extensions (319)Updated this morning

49 of 507 shown below, anonymised to street level. Subscribe to get every new lead with full details, plus a starter batch the day you sign up.

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Fryent GroveNW9

New

Roof extension including hip to gable, rear dormer, 2no. front facing rooflights and new side gable window

LoftDormerHip to Gable
4.1 miyesterday13 Oct

West WayHA8

New

Single storey rear infill extension

ExtensionSingle StoreyRear ExtensionInfill Extension
3.9 mi2 days ago12 Oct

Highview AvenueHA8

New

Roof extension including side and rear wraparound dormer window with juliette balcony, 1no. rooflight on flat roof and 2no. front facing rooflights

LoftWrap AroundDormerRoof Light/Velux
4.3 mi2 days ago12 Oct

Greenway CloseNW9

New

Single storey side and rear extension with 1no. skylight following demolition of the existing garage. New front porch

ExtensionSingle StoreyRear ExtensionFront Extension
3.7 mi2 days ago12 Oct

Paxford RoadHA0

New

Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3.3m Eaves height - 3m

ExtensionSingle StoreyRear ExtensionPrior Approval
1.9 mi2 days ago12 Oct

West HillHA9

New

Erection of single storey side to rear extension, first floor side extension, front porch extension, rear dormer extension, hip to gable roof extension, 3x front rooflights and alteration to rear per…

ExtensionLoftOutbuildingSingle StoreyRear ExtensionSide Extension
2.7 mi5 days ago9 Oct

Glendale AvenueHA8

New

Single storey rear extension with 1no. roof lantern

ExtensionSingle StoreyRear Extension
3.8 mi5 days ago9 Oct

Colindale AvenueNW9

New

Single storey rear/side extension with a proposed depth of 6 metres, maximum height of 2.9 metres and eaves height of 2.85 metres;

ExtensionSingle StoreySide Extension
4.2 mi6 days ago8 Oct

Ilmington RoadHA3

New

Demolition of side garage & utility room and proposed two-storey side to rear extension, 2x side dormers, extension to existing rear dormer and installation of 1x front rooflight to dwellinghouse

ExtensionLoftTwo StoreyRear ExtensionDormer
1.8 mi6 days ago8 Oct

& 202a Carlton AvenueHA9

New

Single storey rear extension, first floor rear extension, gable end roof extension, rear dormer window, 2 front rooflights, alteration to fenestration to ground and first floor flats

ExtensionLoftSingle StoreyRear ExtensionFirst Floor Extension
2.3 mi6 days ago8 Oct

West WayHA8

New

Erection of rear outbuilding following the demolition of existing garage

OutbuildingNew/Detached GarageDemolition
3.9 mi6 days ago8 Oct

Worcester GardensUB6

New

Single storey (Max 6m deep and Max 2.80m high) rear extension (42 days Prior Notification Process)

ExtensionSingle StoreyRear ExtensionPrior Notification
2.3 mi6 days ago8 Oct
Show 37 more applications

Forty AvenueHA9

New

Certificate of lawfulness for proposed front porch extension, single-storey rear infill extension, 2x rear dormer extensions and installation of 2x front rooflights and 2x side windows to dwellinghou…

ExtensionLoftSingle StoreyRear ExtensionFront Extension
2.8 mi6 days ago8 Oct

Holyrood GardensHA8

Proposed conversion of dwellinghouse into a 5 bedroom 5 person house in multiple occupation (HMO) and associated landscaping, cycle storage to front, refuse storage and fencing to rear garden.

ConversionLandscapingHMO ConversionCycle Storage
3.3 mi1 week ago7 Oct

Oldborough RoadHA0

Proposed rear dormer extension, 2x hip to gable roof extensions, 3x front rooflights and replacement of rear doors to dwellinghouse.

ExtensionLoftDormerHip to Gable
2.0 mi1 week ago7 Oct

George V WayUB6

Single storey (Max 6m deep and Max 3.30m high) rear extension (42 days Prior Notification Process)

ExtensionSingle StoreyRear ExtensionPrior Notification
3.1 mi1 week ago7 Oct

Chaplin RoadHA0

Proposed front infill extension to the dwellinghouse.

ExtensionInfill Extension
2.8 mi1 week ago7 Oct

Twickenham GardensUB6

Single storey (Max 6m deep and Max 3m high) rear extension (42 days Prior Notification Process)

ExtensionSingle StoreyRear ExtensionPrior Notification
2.2 mi1 week ago6 Oct

Grasmere AvenueHA9

Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 5.22m Maximum height - 3.3m Eaves height - 3m

ExtensionSingle StoreyRear ExtensionPrior Approval
2.3 mi1 week ago6 Oct

Kingshill AvenueUB5

Single storey (Max 6m deep and Max 3m high) rear extension (42 days Prior Notification Process) following demolition of existing rear addition

ExtensionSingle StoreyRear ExtensionDemolition
4.3 mi1 week ago6 Oct

Kings AvenueUB6

Single storey (Max 6m deep and Max 3m high) rear extension (42 days Prior Notification Process)

ExtensionSingle StoreyRear ExtensionPrior Notification
4.5 mi1 week ago6 Oct

Bowrons AvenueHA0

Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3m Eaves height - 2.9m

ExtensionSingle StoreyRear ExtensionPrior Approval
3.4 mi1 week ago5 Oct

Kinloch DriveNW9

Demolition of existing rear conservatory and erection of single storey rear extension to the bungalow.

ExtensionSingle StoreyRear ExtensionConservatory
3.9 mi1 week ago5 Oct

Park RoadHA0

Demolition of existing front porch and erection of part single part two-storey side-to-rear extension, front porch extension, alteration to rear fenestration and installation of 1x front rooflight to…

ExtensionTwo StoreyPart Single/Part Two StoreyRear Extension
3.2 mi1 week ago5 Oct

Hillfield AvenueNW9

Single storey rear extension with 1no. rooflight

ExtensionSingle StoreyRear ExtensionRoof Light/Velux
4.3 mi1 week ago5 Oct

Lynton AvenueNW9

Single storey rear extension with extended tiled roof

ExtensionSingle StoreyRear Extension
4.3 mi1 week ago5 Oct

Woodcock Dell AvenueHA3

Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 5m Maximum height - 3m Eaves height - 3m

ExtensionSingle StoreyRear ExtensionPrior Approval
1.9 mi1 week ago5 Oct

Rugby AvenueHA0

Proposed single storey rear extension to the dwellinghouse.

ExtensionSingle StoreyRear Extension
2.4 mi1 week ago5 Oct

Priory GardensHA0

Proposed single storey part rear infill extension to the dwellinghouse.

ExtensionSingle StoreyRear ExtensionInfill Extension
1.8 mi1 week ago2 Oct

Lower Paddock RoadWD19

Erection of a ground floor rear extension. Interior alteration, floor plan redesign and all associated works.

ExtensionRear ExtensionGround Floor Extension
4.5 mi1 week ago2 Oct

Manor DriveHA9

Proposed side dormer extension to dwellinghouse

ExtensionLoftDormer
3.1 mi1 week ago1 Oct

Silk Mill RoadWD19

Construction of single storey front and rear extensions

ExtensionSingle StoreyRear Extension
4.7 mi1 week ago1 Oct

East CourtHA0

Proposed single storey rear extension, and installation of side boundary fences and rear patio to dwellinghouse.

ExtensionSingle StoreyRear ExtensionPatio/Terrace
2.0 mi1 week ago1 Oct

Westbury RoadHA6

Construction of part single, part two storey side and rear extension; removal of chimney stack; alterations to the fenestration; internal alterations

ExtensionTwo StoreyPart Single/Part Two StoreyRear Extension
4.3 mi2 weeks ago30 Sept

Amery RoadHA1

Proposed single-storey rear extension, conversion of garage into habitable room and installation of front window to dwellinghouse

ExtensionConversionSingle StoreyRear ExtensionHabitable Space Conversion
1.5 mi2 weeks ago30 Sept

The RidgewayNW9

Certificate of lawfulness for proposed rear dormer extension, hip-to-gable roof extension, 3x front rooflights, and 1x side window to dwellinghouse.

ExtensionLoftDormerHip to Gable
4.0 mi2 weeks ago29 Sept

Uxendon HillHA9

Proposed single-storey rear infill extension to dwellinghouse

ExtensionSingle StoreyRear ExtensionInfill Extension
2.6 mi2 weeks ago29 Sept

Crosier WayHA4

Proposed loft conversion including hip to gable change, formation of new rear dormer roof, new roof window, new side window and closing up of existing side window.(Application for a Certificate of La…

LoftDormerHip to GableLoft Conversion
3.5 mi2 weeks ago29 Sept

Colindale AvenueNW9

Use of existing outbuilding as home office

Outbuilding
3.9 mi2 weeks ago29 Sept

The RidgewayNW9

Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 5.07m Maximum height - 4.00m Eaves height - 3.00m

ExtensionSingle StoreyRear ExtensionPrior Approval
3.9 mi2 weeks ago29 Sept

The RidgewayNW9

Certificate of lawfulness for proposed single-storey outbuilding in rear garden to dwellinghouse.

OutbuildingSingle Storey
3.9 mi2 weeks ago29 Sept

Colin GardensNW9

Single storey rear extension with a proposed depth of 4.74 metres, maximum height of 3.25 metres and eaves height of 2.85 metres, following demolition of the existing rear outrigger.

ExtensionSingle StoreyRear ExtensionDemolition
4.5 mi2 weeks ago29 Sept

St Margarets RoadHA8

Lower ground rear extension and enlargement of existing raised terrace area

ExtensionRear ExtensionPatio/Terrace
4.0 mi2 weeks ago29 Sept

Deane WayHA4

Erection of a single storey side and rear extension, and conversion of roof space to habitable use including a rear dormer and hip to gable end conversion, following the demolition of the existing de…

ExtensionLoftConversionSingle StoreyRear ExtensionDormer
2.4 mi2 weeks ago29 Sept

Springfield MountNW9

Certificate of lawfulness for single-storey rear extension to dwellinghouse.

ExtensionSingle StoreyRear Extension
4.0 mi2 weeks ago28 Sept

Kenmere GardensHA0

Single storey rear infill extension to ground floor flat

ExtensionSingle StoreyRear ExtensionInfill Extension
3.9 mi2 weeks ago28 Sept

Eversley AvenueHA9

Proposed conversion of garage into habitable space with conversion of garage door with window, replacement of single-glazed timber windows with double glazed UPVC windows to front and side elevations…

ConversionCanopyTimber Windows/DoorsuPVC Windows/Doors
3.1 mi2 weeks ago28 Sept

Capel RoadWD19

Erection of single storey rear extension

ExtensionSingle StoreyRear Extension
4.5 mi2 weeks ago28 Sept

Uxendon HillHA9

Demolition of existing side extension and proposed part single part two-storey side-to-rear extension, rear dormer with 1x side juliet balcony and installation of 2x front and 2x side rooflights to d…

ExtensionLoftTwo StoreyPart Single/Part Two StoreyRear Extension
2.6 mi2 weeks ago28 Sept

12-month application volume

Harrow sees between 155 and 404 planning applications per month (averaging 321); recent months are easing.

Local intelligence

Know your patch: what gets built in Harrow, by whom, and who approves it

The patterns behind the leads. Helpful when you're deciding which jobs to chase.

What's being built in Harrow

Application volume by project type, last 90 days.

Extensions
319
Outbuildings
40
Loft conversions
33
Conversions
16
New builds
9
Heritage
4
Applications · 90d
507
vs 933 prior quarter
Approval rate
76%
130 decided
Biggest category
Extensions
319 apps
vs prior 90d
-46%

How councils in Harrow compare

Approval rates, decision times and what gets approved most often. Last 12 months.

Harrow

31% of the area
Approval rate
71%
Median decision
—

Most approved

  • Demolition86%
  • Habitable Space86%
  • Conservatory80%

Brent

27% of the area
Approval rate
74%
Median decision
8.7 wk

Most approved

  • Air Source Heat Pump100%
  • Flue100%
  • Bifold Doors100%

Ealing

17% of the area
Approval rate
82%
Median decision
8.0 wk

Most approved

  • Home Gym100%
  • Flue100%
  • Aluminium Windows100%

Most active architects

12-month view
  • Mr Rajinder Atra4 apps
  • Mr Amit Patel4 apps
  • London Interiors4 apps
  • Mr Harein Patel4 apps
  • Mr Kevin Padilla3 apps
The product

From planning application to doormat in 24 hours

Done-for-you letters

Branded letters, printed and posted for you

Upload your logo and letterhead once, or let PlanPost generate one for you. Every matched application triggers a letter personalised with the homeowner's address and the project they applied for. The greeting stays “Dear Homeowner”: we never use their name. Royal Mail, same working day.

“The letters look better than anything I'd have put together myself. One landed on a £72k loft before the homeowner had even spoken to another builder.”
CK
Chris K.
Owner, CSK Property
Oakwood
Construction
EST. 2012 · SHEFFIELD
14 Station Road
Sheffield S7 4RQ
0114 555 0192
The Homeowner
22 Laurel Gardens
Sheffield
S7 1DH
15 April 2026
Re: Your planning application at 22 Laurel Gardens

Dear Homeowner,

Congratulations on submitting your planning application for a loft conversion at 22 Laurel Gardens. It's exciting to see local homeowners investing in improving their properties.

I'm writing to introduce Oakwood Construction, a local building company that specialises in extensions, loft conversions and home improvements across South Sheffield. We've been trading since 2012, and everything we build is carried out by our own team rather than subcontractors, so someone is on your job every day and the work never stalls.

We finished a loft conversion much like yours on Abbeydale Road earlier this year: two bedrooms and a shower room, done in eleven weeks with the family living at home throughout.

I know the two big questions at this stage are what it will really cost and what it's like to live through the build. Those are exactly the things I'd rather set out honestly with you before you commit to anything.

If you'd like to discuss your plans or would welcome a free, no-obligation consultation, I'd be happy to visit at a time that suits you. Call me on 0114 555 0192, or scan the code below to see examples of our recent work.

I look forward to hearing from you.

Kind regards,

Dave Morgan
Director · Oakwood Construction
Scan to see our work
Royal
Mail

How PlanPost works in Harrow

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1

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Every new planning application is pulled in within 24 hours and matched to your project types and working radius. No spam, no irrelevant noise.

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2

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3

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A proper sales pipeline. From posted to responded, quoted, and won, with timeline events, notes and deal values so you see what's working.

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