For Builders in Cardiff

287 jobs just hit Cardiff planning. None of those homeowners know you exist yet.

PlanPost turns new planning applications into construction leads across Cardiff: 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.

  • 287 applications in Cardiff in the last 90 days
  • Letters printed and posted for you, via Royal Mail
  • From £39/mo, cancel anytime
Updated this morning · 1 council monitored · Letters included · Cancel anytime
Live data

Live leads in Cardiff you could be winning

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

287 live applicationsMostly Extensions (145)Updated this morning

50 of 287 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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Parc-y-fro Creigiau CardiffCF15

Proposed two storey side extension & front porch canopy

ExtensionTwo StoreySide ExtensionFront Extension
1 week ago1 Oct

Major RoadCF5

Single-storey rear extension

ExtensionSingle StoreyRear Extension
1 week ago30 Sept

St Isan Road HeathCF14

Proposed ground and first floor rear and side extension

ExtensionSide ExtensionFirst Floor Extension
1 week ago29 Sept

Albany RoadCF24

Proposed larger dormer.

LoftDormer
1 week ago25 Sept

Orchard Lodge Highfields Llandaff CardiffCF5

Conversion of integral garage into habitable accommodation, internal alterations and new detached single garage.

ConversionInternal AlterationsHabitable Space Conversion
1 week ago25 Sept

Homelands Road HeathCF14

Single storey rear extension.

ExtensionSingle StoreyRear Extension
2 weeks ago24 Sept

Heol Stradling Whitchurch CardiffCF14

Demolition, reconstruction, and extension of garage.

ExtensionDemolition
2 weeks ago24 Sept

Maelog PlaceCF14

Single storey rear extension.

ExtensionSingle StoreyRear Extension
2 weeks ago24 Sept

Heathwood Road HeathCF14

Single storey rear extension and garage conversion.

ExtensionConversionSingle StoreyRear ExtensionGarage Conversion
2 weeks ago23 Sept

Penrhos Radyr CardiffCF15

Demolish single storey side extension. Erect 2 storey side extension, small front single storey extension and rear single storey extension.

ExtensionSingle StoreyTwo StoreySide Extension
2 weeks ago23 Sept

City RoadCF24

Extension of flat roof to either side of extension to form weather canopy for customers and deliveries.

ExtensionCanopyFlat Roof
2 weeks ago22 Sept

Celyn AvenueCF23

Rear extensions and alterations to the property.

ExtensionRear Extension
2 weeks ago22 Sept
Show 38 more applications

Ton-yr-ywen Avenue HeathCF14

Ground and First flor extensions with rear dormer loft conversion.

ExtensionLoftDormerLoft Conversion
2 weeks ago22 Sept

Wyeverne RoadCF24

Ground and first floor rear extension, hip to gable dormer loft conversion, including conversion from three to four flats

ExtensionLoftNew BuildRear ExtensionFirst Floor ExtensionDormer
2 weeks ago21 Sept

Pum Erw Road HeathCF14

Proposed single storey rear extension and associated works

ExtensionSingle StoreyRear Extension
2 weeks ago21 Sept

Pine Wood CrescentCF23

Proposed single storey side extension, including demolition of existing garage

ExtensionSingle StoreySide ExtensionDemolition
2 weeks ago21 Sept

St Ina Road HeathCF14

Demolition of existing garage, erection of single storey rear and side extension

ExtensionSingle StoreySide ExtensionDemolition
2 weeks ago21 Sept

Cefn Coed AvenueCF23

Detached garden room.

OutbuildingGarden Office
2 weeks ago21 Sept

St Michael's RoadCF5

Demolition of existing store / garden room and construct new two storey side and rear extension.

ExtensionOutbuildingTwo StoreyRear ExtensionGarden Office
2 weeks ago18 Sept

Bishop's RoadCF14

Proposed single storey rear infill extension and proposed single storey side extension

ExtensionSingle StoreyRear ExtensionSide Extension
2 weeks ago18 Sept

Milestone Close HeathCF14

Conversion of integral garage.

Conversion
2 weeks ago18 Sept

Llwyn Y Pia RoadCF14

Proposed single storey side / rear extension with minor internal alterations

ExtensionSingle StoreyRear ExtensionInternal Alterations
3 weeks ago17 Sept

Drum Tower ViewCF83

Erect conservatory to the rear of the property

ExtensionConservatory
3 weeks ago17 Sept

Dol Y Llan Miskin Pontyclun Rhondda Cynon TafCF72

Proposed single storey rear / side extension & front porch Alterations, including demolition of existing single storey rear extension

ExtensionSingle StoreyRear ExtensionSide Extension
3 weeks ago17 Sept

Bridge StreetCF5

Proposed conversion of existing garage into a utility room and the replacement of the conservatory with a two storey rear extension

ExtensionConversionTwo StoreyRear ExtensionConservatory
3 weeks ago17 Sept

Richmond RoadCF24

Ground and first floor rear extensions to existing flats.

ExtensionRear ExtensionFirst Floor Extension
3 weeks ago16 Sept

Donald StreetCF24

Proposed side dormer addition to the rear annex utilising the existing 2nd floor space.

LoftOutbuildingDormerAnnex/Annexe
3 weeks ago15 Sept

Nant Y Gwladys St Fagans CardiffCF5

Proposed single storey rear extension, associated internal reconfiguration, and replacement front porch

ExtensionSingle StoreyRear ExtensionFront Extension
3 weeks ago15 Sept

Llewelyn Goch St Fagans CardiffCF5

Demolition of existing front left bay window and erection of single storey front extension. Conversion of and front extension to existing garage.

ExtensionConversionOutbuildingSingle StoreyFront ExtensionNew/Detached Garage
3 weeks ago14 Sept

Pen-y-dre Rhiwbina CardiffCF14

Rear single storey extension.

HeritageExtensionSingle Storey
3 weeks ago14 Sept

Pen-y-dre Rhiwbina CardiffCF14

Proposed rear single storey extension

ExtensionSingle Storey
3 weeks ago14 Sept

Llantrisant RoadCF5

Proposed side and rear ground and first floor extensions, new roof covering and side dormer, Minor widening of entrance driveway.

ExtensionLoftFirst Floor ExtensionDormerRoof Replacement
3 weeks ago11 Sept

Llandaff RoadCF11

Rear/side dormer loft conversion and rear balcony.

LoftDormerLoft ConversionBalcony (non-Juliet)
3 weeks ago11 Sept

The Retreat Penylan CardiffCF23

Proposed conversion of roof space, side & rear extensions & internal alterations to form a HMO

ExtensionLoftConversionRear ExtensionInternal AlterationsHMO Conversion
3 weeks ago11 Sept

Llandaff RoadCF11

Rear/side dormer loft conversion and rear balcony.

LoftDormerLoft ConversionBalcony (non-Juliet)
3 weeks ago11 Sept

Beatty AvenueCF23

Proposed Ground Floor Rear and Side Extension plus Rear Dormer Loft Conversion

ExtensionLoftSide ExtensionGround Floor ExtensionDormer
3 weeks ago11 Sept

Heol Cwarrel Clark CaerphillyCF83

Obtain a Lawful Development Certificate for conversion of the existing integral garage into habitable accommodation, replacement of the garage door with a window, associated internal alterations and…

ConversionInternal AlterationsGarage DoorHabitable Space Conversion
3 weeks ago11 Sept

Oakley PlaceCF11

Rear dormer roof extension.

LoftDormer
4 weeks ago10 Sept

St Peter's StreetCF24

Demolition of existing two storey side extension and replacement with new remodelled two storey extension

ExtensionTwo StoreySide ExtensionDemolition
4 weeks ago10 Sept

Edward TerraceCF83

Erect rear ground floor and basement extension and attic conversion

ExtensionLoftBasement/CellarRoof Space Conversion
4 weeks ago10 Sept

Clos William Rhiwbina CardiffCF14

Single Storey Side/Rear Extension with Internal Alterations. Loft Reconfiguration with Dormers. Detached Garage Enlargement.

ExtensionLoftOutbuildingSingle StoreyRear ExtensionInternal Alterations
4 weeks ago9 Sept

Blossom DriveCF14

Single storey rear extension and garage conversion to room.

ExtensionConversionSingle StoreyRear ExtensionGarage Conversion
4 weeks ago9 Sept

- 31 Ton-y-felin RoadCF83

Change the use from office space to two residential units

New Build
4 weeks ago9 Sept

Waterloo RoadCF23

Demolition of existing rear conservatory and part rear ground floor. Construction of single storey rear extension.

ExtensionSingle StoreyRear ExtensionConservatory
4 weeks ago8 Sept

North RoadCF14

Conversion into 3no. self-contained flats and 1no. studio apartment with single storey rear and side extension and rear dormer.

ExtensionLoftSingle StoreySide ExtensionDormer
4 weeks ago8 Sept

Broad StreetCF11

Two-storey rear extension and relocation of the entrance door to the front elevation.

ExtensionTwo StoreyRear ExtensionFront Elevation Change
4 weeks ago8 Sept

Pantbach Road HeathCF14

Proposed enlargement of the existing single-storey rear extension and removal of the existing flat roof and construction of a pitched roof over the enlarged extension with associtated works

ExtensionSingle StoreyRear ExtensionFlat Roof
4 weeks ago8 Sept

Llantarnam RoadCF14

Proposed erection of a part single-storey, part two-storey rear extension with associated external alterations.

ExtensionSingle StoreyTwo StoreyPart Single/Part Two Storey
4 weeks ago8 Sept

Garrick DriveCF14

Single storey side extension.

ExtensionSingle StoreySide Extension
1 month ago7 Sept

Clos Parc Radur Radyr CardiffCF15

Single storey rear extension.

ExtensionSingle StoreyRear Extension
1 month ago7 Sept

12-month application volume

Cardiff sees between 74 and 144 planning applications per month (averaging 113); recent months are steady.

Local intelligence

Know your patch: what gets built in Cardiff, 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 Cardiff

Application volume by project type, last 90 days.

Extensions
145
Loft conversions
21
Conversions
10
New builds
9
Heritage
7
Outbuildings
7
Applications · 90d
287
vs 383 prior quarter
Approval rate
91%
101 decided
Biggest category
Extensions
145 apps
vs prior 90d
-25%

How Cardiff works

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

Cardiff

83% of the area
Approval rate
91%
Median decision
7.6 wk

Most approved

  • Conservatory100%
  • Balcony100%
  • Garden Office100%

Towns we cover in Cardiff

1 towns, ordered by population.

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 Cardiff

From planning application to letter on the homeowner's doormat, done for you, in 24 hours.

1

We monitor Cardiff every day

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

Same-day
2

Your branded letter goes in the post

Your letterhead and your chosen letter template, merged with the homeowner's address and project details, then sent by Royal Mail. Printing and postage included.

Done for you
3

You track every lead through to won

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

Real pipeline

Pick a plan and start winning Cardiff jobs

Monthly rolling. Letters included in every plan. Cancel or pause anytime.

Starter

£39/mo + VAT

£46.80 inc. VAT

25 letters / month included

Start with Starter

Professional

Most popular

£79/mo + VAT

£94.80 inc. VAT

50 letters / month included

Start with Professional

Business

£149/mo + VAT

£178.80 inc. VAT

100 letters / month included

Start with Business

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