Planning Applications in Old St. Mellons

Planning authority: City of Cardiff Council

Search current and historic planning applications in Old St. Mellons, Cardiff, published by City of Cardiff Council - 3 applications in the last 90 days and 46 in the last 12 months. Explore them on the map, apply detailed filters, or receive free alerts for new proposals.

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Showing the most recent 40 of 46 applications - narrow your search with filters to see more
7 Sept 2026 Registered 26/01878/FUL

St Julians Forge Bridge Road Old St Mellons Cardiff CF3 6YJ

Proposed conversion and extensions of existing annex to form a dwelling house & erection of a detached bungalow

Full Planning Permission Cardiff
3 Aug 2026 Approved 13 Aug 26/01638/WTTPFP

41 Hastings Crescent Old St Mellons Cardiff CF3 5DF

41 Hastings Crescent works to trees T2 (beech) and T3 (lime) as per submitted report. The pines referenced are not covered by a TPO.

Works to Trees Fell/Prune Trees in TPO Cardiff
13 Jul 2026 Approved 28 Jul 26/01452/NMA

20 Ruperra Close Old St Mellons Cardiff CF3 6HX

Proposed Non-Material Amendment to Planning Permission 26/00673/HSE- Relocation of windows and doors and small infill between the main house and side ...

Non Material Amendment Cardiff
29 Jun 2026 Approved 15 Sep 26/01347/DOC

St Julians Cottage Bridge Road Old St Mellons Cardiff CF3 6YJ

Discharge of condition 3 (Remediation Scheme) of 24/02463/FUL.

Discharge of Condition(s) Cardiff
19 May 2026 Approved 22 May 26/01053/WTTPFP

27 Hastings Crescent Old St Mellons Cardiff CF3 5DF

Works to TPO 129/T13 1 mature Tillia lime tree front of properties. survey recently carried out and has recommended a 15 % crown thin/ climbing inspec...

Works to Trees Fell/Prune Trees in TPO Cardiff
7 May 2026 Registered 26/00906/FUL

Plot A Wern Fawr Lane Old St Mellons Cardiff CF3 5EA

Development of a discount retail foodstore (Use Class A1), together with access, parking, external lighting, landscaping, drainage, and other associat...

Full Planning Permission Cardiff
14 May 2026 Approved 19 Jun 26/00960/REN

Ty Rato Ty'r Winch Road Old St Mellons Cardiff CF3 5UX

Renewal of Planning Permission 21/00937/DCH for a side extension to create granny annexe.

Renewal of previous permission Cardiff
10 Apr 2026 Approved 2 Jun 26/00673/HSE

20 Ruperra Close Old St Mellons Cardiff CF3 6HX

New front porch, ground and first floor side extensions, proposed car port and other associated works.

Householder Planning Permission Cardiff
20 Mar 2026 Approved 26 Mar 26/00581/WTTPF

Marleigh Lodge Druidstone Road Old St Mellons Cardiff CF3 6XD

Marleigh Lodge Cypress Avenue: - T1 Group tree 18m high, suppressed canopy towards neighbouring trees, full canopy towards light, stem breaks into 5 /...

Works to Trees Fell Trees in TPO Cardiff
20 Mar 2026 Approved 26 Mar 26/00582/WTTPP

17 Hastings Crescent Old St Mellons Cardiff CF3 5DF

Garden of 17 Hastings Crescent - as per submitted tree report remove x1 low lateral branch from pine T1 as per the submitted tree report

Works to Trees Prune Trees in TPO Cardiff
19 Mar 2026 Approved 19 Jun 26/00550/HSE

Brook House Began Road Old St Mellons Cardiff CF3 6XJ

Construction of garage and first floor office.

Householder Planning Permission Cardiff
25 Mar 2026 Approved 18 Jun 26/00530/HSE

Brook House Began Road Old St Mellons Cardiff CF3 6XJ

Construction of a pavilion for an existing swimming pool.

Householder Planning Permission Cardiff
11 Mar 2026 Approved 21 Apr 26/00461/CLPUD

54 Ty-to-maen Close Old St Mellons Cardiff CF3 5EZ

Demolition of existing conservatory and construction of rear single storey extension and replacement of garage roof.

Cert of Lawfulness Proposed (s192) Cardiff
10 Feb 2026 Approved 14 Apr 26/00279/DOC

St Julians House Bridge Road Old St Mellons Cardiff CF3 6YJ

Discharge of Condition 8 (External Lighting) of 24/02463/FUL

Discharge of Condition(s) Cardiff
5 Feb 2026 Approved 30 Mar 26/00217/DOC

9 Melville Avenue Old St Mellons Cardiff CF3 5TZ

Discharge of Conditions 3 (Arboricultural Method Statement and Tree Protection) and 4 (Soft Landscaping) of 25/02410/HSE.

Discharge of Condition(s) Cardiff
21 Jan 2026 Registered 26/00116/NMA

Land Adjacent To Little Began House Began Road Old St Mellons Cardiff CF3 6XJ

Proposed Non-Material Amendment to Planning Permission 21/02490/MNR - Amendment to highway access for Plot 1.

Non Material Amendment Cardiff
20 Jan 2026 Approved 28 Apr 26/00105/FUL

Paddock South Of St Mellons Road Old St Mellons Cardiff CF3 6YJ

New vehicle crossover across landscaped verge to provide access to existing paddock from adopted highway

Full Planning Permission Cardiff
9 Jan 2026 Refused 24 Mar 26/00017/OUT

Land Adjacent To Cefn Eurwg Druidstone Road Old St Mellons Cardiff CF3 6XD

Construction of a single storey detached bungalow.

Outline Planning Permission Cardiff
17 Dec 2025 Approved Archive 25/02949/HSE

154 Countisbury Avenue Llanrumney Cardiff CF3 5RS

Demolition of existing conservatory and replacement with single storey rear extension.

Cardiff
4 Dec 2025 Pending Archive 25/02873/FUL

Part Of Land At Pentwyn Cottage St Mellons Road Pontprennau Cardiff CF14 0SH

Provision of two houses within garden to Pentwyn Cottage.

Cardiff
27 Nov 2025 Pending Archive 25/02794/HSE

49 Oakleafe Drive Pontprennau Cardiff CF23 8AL

Construction of a patio and means of enclosure.

Cardiff
26 Nov 2025 Approved Archive 25/02789/HSE

20 Ruperra Close Old St Mellons Cardiff CF3 6HX

FIrst floor side extensions, ground floor side and rear extension, and relocation of carport, including associated external alterations.

Cardiff
25 Nov 2025 Approved Archive 25/02754/HSE

Little Acre Druidstone Road Old St Mellons Cardiff CF3 6XD

Conversion of the existing double garage into a home office, the erection of a garage and retention of rear structure.

Cardiff
24 Nov 2025 Approved Archive 25/02734/WTTPF

9 Melville Avenue Old St Mellons Cardiff CF3 5TZ

Removal of a section of hedge which includes 4 TPO trees

Cardiff
24 Nov 2025 Approved Archive 25/02742/HSE

29 Wyncliffe Gardens Pentwyn Cardiff CF23 7FA

Installation of an Air Source Heat Pump.

Cardiff
13 Nov 2025 Pending Archive 25/02645/HSE

The Cottage The Ton Old St Mellons Cardiff CF3 5UR

Replacement roofing, front porch and front windows. Removal of boundary walls, relocation of garage door, flat roof garage port and various front gard...

Cardiff
18 Nov 2025 Approved 13 May 25/02550/NMA

Becketts House Bridge Road Old St Mellons Cardiff CF3 6UY

Proposed Non-Material Amendment to Planning Permission 22/00608/MNR- Construction of front (north and east) boundary walls with sliding vehicle access...

Non Material Amendment Cardiff
4 Nov 2025 Pending Archive 25/02542/ADV

Land At St Mellons Road Lisvane Cardiff

Land Acquired boards. 6m tall sign board showing company logo, "Land Acquired" and contact information.

Cardiff
4 Nov 2025 Pending Archive 25/02551/DOC

Becketts House Bridge Road Old St Mellons Cardiff CF3 6UY

Discharge of Condition 24 (Cycle Parking) of 22/00608/MNR

Cardiff
20 Nov 2025 Approved 24 Apr 25/02517/HSE

The Cottage Began Road Old St Mellons Cardiff CF3 6XJ

Two-storey rear extension and two-storey, part single-storey, side extension with loft extension and new openings. Front driveway extended with plante...

Householder Planning Permission Cardiff
3 Nov 2025 Approved Archive 25/02523/WTTPFP

20 Felbrigg Crescent Pontprennau Cardiff CF23 8SE

T1 Oak tree situated in rear garden, crown reduce by approximately 1 to 1.5 metres back to suitable live growth points, remove major deadwood, split o...

Cardiff
30 Oct 2025 Pending Archive 25/02510/HSE

6 Highbank Pontprennau Cardiff CF23 8PN

Erection of a first-floor side extension above the existing garage and single-storey front extension to the garage.

Cardiff
22 Oct 2025 Pending Archive 25/02451/VAR

Bridge Farm Bridge Road Old St Mellons Cardiff CF3 6YJ

The division and conversion of an existing agricultural building into 2no. Dwellinghouses. (Approved 23 October 2020 - 20/00509/MNR):- Variation of Co...

Cardiff
21 Oct 2025 Pending Archive 25/02435/VAR

Bridge Farm Bridge Road Old St Mellons Cardiff CF3 6YJ

DIVISION AND CONVERSION OF EXISTING AGRICULTURAL BUILDING INTO 2NO. DWELLING HOUSES WITH PROPOSED DEMOLITION OF POOR QUALITY 20TH CENTURY ADDITIONS AT...

Cardiff
21 Oct 2025 Pending Archive 25/02443/VAR

Bridge Farm Bridge Road Old St Mellons Cardiff CF3 6YJ

THE SUB-DIVISION OF AN EXISTING LISTED FARMHOUSE AND CONVERSION INTO 2NO. DWELLINGHOUSES. (Approved 23 October 2020- 20/00510/MNR):- Variation of Cond...

Cardiff
21 Oct 2025 Pending Archive 25/02434/VAR

Bridge Farm Bridge Road Old St Mellons Cardiff CF3 6YJ

THE SUB-DIVISION OF AN EXISTING LISTED FARMHOUSE AND CONVERSION INTO 2NO. DWELLINGHOUSES (Approved 23 October 2020- 20/00511/MNR):- Variation of Condi...

Cardiff
17 Oct 2025 Pending Archive 25/02410/HSE

9 Melville Avenue Old St Mellons Cardiff CF3 5TZ

Alterations to Elevations, including Gable Forms and Flat Roof Extensions to property at first floor level, a first-floor rear roof terrace, and vario...

Cardiff
17 Oct 2025 Pending Archive 25/02401/FUL

Part Of Land At Pistyll Began Road Old St Mellons Cardiff CF3 6XJ

Construction of 2no. 5 bedroom dormer bungalows.

Cardiff
13 Oct 2025 Pending Archive 25/02347/ADV

Proposed Digital Advertising Screen On Roundabout Church Road Roundabout Heol Pontprennau Pontprennau Cardiff

Digital Advertising Screen 48 Sheet Landscape.

Cardiff
13 Oct 2025 Pending Archive 25/02356/SCR

Bryngolau Farm Pontprennau Cardiff

Screening Opinion A residential development of up to 400 dwellings, including roads, drainage, open space, landscaping and ecological mitigation works...

Cardiff
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Data updated daily. Source: City of Cardiff Council planning portal.