Post only
Addresses for letters to “The Owner/Occupier”. No phone numbers, no names, no doorstep lists.
Builder leads · Cardiff
Builder leads in Cardiff: 170+ new in 90 days.
176 applications filed with Cardiff council in the 90 days to 21 Oct 2026 mean work for builders, and 501 in the last 12 months. We read the register every day and post you the addresses, so your letter lands while they’re still choosing.
- filed in the 90 days to 21 Oct 2026
- 176
- in the last 12 months
- 501
- busiest postcode district
- CF14
Cardiff · building workby filing month
The work
What Cardiff's building applications are for, and where.
41% of Cardiff's 501 building applications in the last 12 months were single-storey extension, then extension (114).
The work clusters in CF14 (192), CF5 (67) and CF23 (63): those three postcode districts filed 64% of it.
Filings ran at about 59 a month over the last 5 full months, peaking in July 2026 with 67.
That is 32% of everything filed with Cardiff council in the year (1,550 applications); the rest is other trades' work, adverts, trees and paperwork.
The kinds of work, last 12 months
The trigger that put each application on a builder’s list. The full matching table
Where in Cardiff, by postcode district
Your patch can be the whole council, a few districts or a radius around your yard.
Off the register
The latest building applications in Cardiff, address hidden.
As filed with the council, newest first. Subscribers get the full site address, the planning reference and the reason it matched, for every one.
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19 Oct 2026 CF5 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 Awaiting decision
Single storey rear extension.
●● ●●●●●●●● ●●●●, CF5Single-storey extension · work due now to 3 months from the decision -
15 Oct 2026 CF23 Awaiting decision
Proposed first floor extension over existing single storey room.
●● ●●●●●●●● ●●●●, CF23Two-storey / first-floor extension · work due now to 4 months from the decision -
15 Oct 2026 CF23 Awaiting decision
Proposed single storey extension to the south west of the existing dwelling and new door in the north west elevation.
●● ●●●●●●●● ●●●●, CF23Single-storey extension · work due now to 3 months from the decision -
14 Oct 2026 CF15 Awaiting decision
Proposed single storey side extension to existing house.
●● ●●●●●●●● ●●●●, CF15Single-storey extension · work due now to 3 months from the decision -
13 Oct 2026 CF5 Awaiting decision
Proposed Single Storey Side Extension
●● ●●●●●●●● ●●●●, CF5Single-storey extension · 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
Your letter lands before Cardiff decides.
Single-storey shells start 0–3 months after consent; two-storey 0–4.
- 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 pick a builder
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 matching demand 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.
Bricklayers & building contractors, 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 Radar · bricklayers & building contractorsExclusive 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 builder leads are there in Cardiff?
176 in the 90 days to 21 Oct 2026, and 501 in the 12 months to the same date: planning applications filed with Cardiff council that match our rules for bricklayers & building contractors at high or medium confidence. Refused and withdrawn applications are not counted, and nothing is estimated.
What building work gets filed in Cardiff?
In the last 12 months: single-storey extension (205), extension (114), two-storey or first-floor extension (87) and conservatory or orangery or porch or garden room (36). Single-storey shells start 0–3 months after consent; two-storey 0–4.
Which parts of Cardiff file the most building work?
By postcode district over the last 12 months: CF14 (192), CF5 (67), CF23 (63), CF24 (59) and CF11 (39). Your list can cover the whole council, a few districts, or a radius around your yard.
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.
Can another builder in Cardiff get the same list?
Not from us while you hold it. Exclusive cover is one firm per trade per patch, and we check your patch is free before you pay. The register itself is public, so anyone can read it: what you pay for is the reading, the matching, the deduplication and a list your printer can post the same day.
How do I get the addresses?
Subscribe to Demand Radar for £149 a month. Your first list arrives within 24 hours, then only new homes every month, as a CSV your printer or mailing house can run as it is. Addresses are for letters to "The Owner/Occupier" only: no names, no phone numbers.
Near Cardiff
Builder leads nearby, and every other trade in Cardiff.
Builder leads near Cardiff
Other trades 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 176 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