Post only
Addresses for letters to “The Owner/Occupier”. No phone numbers, no names, no doorstep lists.
Construction leads · Cardiff
Construction leads in Cardiff: 290+ new in 90 days.
291 applications filed with Cardiff council in the 90 days to 21 Oct 2026 mean work for at least one trade: extensions, lofts, new windows, roofs, driveways. Pick your trade below, see your numbers, and get the addresses posted to you every month.
- filed in the 90 days to 21 Oct 2026
- 291
- in the last 12 months
- 832
- busiest postcode district
- CF14
Cardiff · work for tradesby filing month
By trade
Planning leads in Cardiff, trade by trade.
Cardiff council took 1,550 planning applications in the 12 months to 21 Oct 2026. 832 of them (54%) mean work for at least one trade; the rest are adverts, trees, conditions and paperwork, and they never reach a list.
Of the main building trades, Cardiff's register favours windows & doors (551), roofing (502) and builders & bricklayers (501): one application usually means work for several trades, so these overlap.
The most active postcode districts are CF14 (265), CF24 (112) and CF5 (110).
About 98 trade-relevant applications a month over the last 5 full months, peaking in September 2026 with 112.
Applications that mean work, last 12 months
One application usually means work for several trades, so the rows overlap.
Where in Cardiff, by postcode district
Your trade in Cardiff
Off the register
The latest building work filed in Cardiff, address hidden.
As filed with the council, newest first, tagged with the trade whose list it lands on. Subscribers get the full site address and planning reference for every one.
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20 Oct 2026 Windows & doors Awaiting decision
New Entrance Doors
●● ●●●●●●●● ●●●●, ●●●Replacement windows / doors · work due now to 2 months from the decision -
19 Oct 2026 CF5 Builders Awaiting decision
Proposed two storey side extension
●● ●●●●●●●● ●●●●, CF5Two-storey / first-floor extension · work due now to 4 months from the decision -
19 Oct 2026 CF5 Builders Awaiting decision
Single storey rear extension.
●● ●●●●●●●● ●●●●, CF5Single-storey extension · work due now to 3 months from the decision -
12 Oct 2026 CF14 Loft conversions Awaiting decision
Conversion from 4 to 9 flats with ground floor rear and side extensions, first floor rear extensions and rear dormer loft conversions. Demolition of rear garages/storage…
●● ●●●●●●●● ●●●●, CF14Loft conversion / dormer · work due now to 2 months from the decision -
7 Oct 2026 CF5 Kitchens
4 storey extension (including undercroft) to existing building to expand dining provision, create additional teaching spaces and improve ancillary accommodation…
●● ●●●●●●●● ●●●●, CF5Kitchen extension / open-plan kitchen · work due 1 to 4 months from the decision -
7 Oct 2026 CF24 Loft conversions Awaiting decision
Ground floor rear extension, rear dormer extension and change of use from class C4 House in Multiple Occupation (HMO) to large Sui Generis house.
●● ●●●●●●●● ●●●●, CF24Loft conversion / dormer · work due now to 2 months from the decision -
22 Sep 2026 Landscaping & driveways Awaiting decision
A 48 sheet digital advertising screen landscape style.
●● ●●●●●●●● ●●●●, ●●●Landscaping / driveway / external works · work due now to 3 months from the decision -
11 Sep 2026 CF5 Landscaping & driveways Awaiting decision
Proposed side and rear ground and first floor extensions, new roof covering and side dormer, Minor widening of entrance driveway.
●● ●●●●●●●● ●●●●, CF5Landscaping / driveway / external works · work due now to 3 months from the decision
Descriptions are the applicant’s own words from the public register. We leave out any row that names a person or carries a house number.
Timing
The plans are public weeks before Cardiff decides.
A homeowner tells the council first. By the time they search for a firm, they’re already getting quotes. Your letter can land in the first week.
- Day 0Plans filed with Cardiff council
The drawings go on the public register. That’s when we read them.
- Week 1Your letter lands
Addressed to the Owner/Occupier, before the homeowner has rung anyone.
- About week 8The council decides
The statutory target for household applications. Many take longer.
- ThenThey start ringing firms
Your competitors meet them here. You wrote to them two months ago.
Patch check
Is your patch still yours to take?
Tell us what you do and where. We’ll run the last 90 days of the public register through the same rules your list uses and show you the demand for your trade sitting in it right now. No card, no trial, no obligation.
Counts only. High and medium confidence matches, deduplicated to one line per application. The site addresses, planning references and per-row reasoning are what a subscription buys.
Want the full list and a monitor built for your firm?
Leave your details and we’ll be in touch today.
The rules
Straight about what you get, and what you don’t.
One firm per trade per patch
Exclusive cover means we won’t sell your councils or postcodes to another firm in your trade while you hold them. Checked before you pay.
A limit on letters per home
We limit how many PlanWatch letters one household gets in a month, across every trade. Exclusive cover is never held back by that limit.
Price
£149 a month. Cardiff, yours.
One trade, Cardiff or any patch you choose, billed monthly. No contract, no trial. If someone in your trade already holds Cardiff, we tell you before you pay.
- An addressed list of every matching home in Cardiff, with the work filed and when your trade is needed
- Your patch, your trade, nobody else: exclusive cover, checked before you pay
- A CSV your printer or mailing house runs as it is
- First list in 24 hours, then only the new homes every month. Never the same address twice
Demand RadarExclusive patch
£149a month · one trade · your patch
Already a subscriber? Open your dashboard →
Questions before you sign up? Email business@planwatch.co.uk.
Questions
Straight answers
Something we haven’t answered? Email business@planwatch.co.uk and a person will reply within one working day.
How many construction leads are there in Cardiff?
291 in the 90 days to 21 Oct 2026 and 832 in the 12 months to the same date: planning applications filed with Cardiff council that match at least one trade's rules at high or medium confidence. Refused and withdrawn applications are left out.
Which trades get the most work from planning applications in Cardiff?
Over the last 12 months: skip hire & waste (601), electricians (600), windows & doors (551), flooring (543), plastering & decorating (543) and roofing (502). Most applications mean work for more than one trade: an extension needs a builder, a roofer, windows, electrics and plastering.
Where in Cardiff is the most building work?
By postcode district, over the last 12 months: CF14 (265), CF24 (112), CF5 (110), CF23 (91) and CF11 (88).
How quickly does Cardiff council decide planning applications?
The statutory target for a householder application is eight weeks in England and Wales and two months in Scotland. A letter sent the week an application is filed in Cardiff lands well before the decision, and long before the homeowner starts ringing round.
Where does the data come from?
Cardiff council's own public planning register, read every day. We match each application against the trade rules your list uses, drop refused and withdrawn applications, and keep one line per household. We never sell names or phone numbers.
How do I get the addresses?
Pick your trade and claim your patch: £149 a month for one trade. Your first list arrives within 24 hours, then only new homes every month, as a CSV for letters to "The Owner/Occupier". One firm per trade per patch.
Near Cardiff
Construction leads in the councils around Cardiff.
Nearby councils
By trade in Cardiff
Counts are refreshed daily from the register and dated 21 Oct 2026. In the 90-day count, “new” means filed from 24 Jul 2026 to 21 Oct 2026.
Cardiff filed 291 building applications in 90 days. Who wrote to them?
Check your patch in one field: no card, no sign-up. If it’s free in your trade, it’s yours for £149 a month.
PlanWatch for business · leads from the public UK planning register · postal outreach only, addressed to “The Owner/Occupier”. How it works