Skip to content

Dennis Hellyar Architects Limited

Dennis Hellyar Architects Limited is an architectural practice in Barry. See its accreditations, specialisms and planning track record.

33applications
88%approved
5councils
Full track record →
Active on Companies House
08937735
Architectural Activities

Is this your business?

Claim this listing free to update your details, add photos and services, and receive enquiries from homeowners.

Barry, CF62, Wales

Credentials

  • ARB registered
  • RIBA chartered

Memberships can lapse, so check before work starts.

Planning Application Track Record

33
Applications
88%
Approval Rate
5
Local Authorities

Local Authorities

Cardiff
Glamorgan
Newport
Rhondda
Torfaen

Application Types

Extensions
26
Other
4
Demolition
3
New Dwellings
3
Conditions
2
Change of Use
1

Planning Application History (33)

31 of 33 applications have a map location
2026/00557/FUL
Demolition of the existing porch and removal of the hedgerow, with a new porch and extension of the existing hardstanding to the front of the property. Demolition of existing conservatory to the rear of the property. Replacement doors and windows throughout the property.
20 Sycamore Crescent, Barry
Permitted
Glamorgan2026-07-24
2026/00537/FUL
New single-storey kitchen infill extension to the rear of the property, along with new windows and doors in the existing house
13 Augusta Road, Penarth
Permitted
Glamorgan2026-07-13
2026/00544/FUL
Variation of Condition 1 (Time Limit) of Planning Approval 2021/01243/FUL: Single storey extension to the rear and side of the property
24 Plassey Street, Penarth
Undecided
Glamorgan2026-07-14
26/01785/HSE
Single storey and partial two storey rear extensions.
9 The Paddock Lisvane Cardiff CF14 0AY
Permitted
Cardiff2026-08-21
2026/00423/FUL
Proposed single-story side and rear extension with a larger external balcony
11 Porth-y-castell, Barry
Permitted
Glamorgan2026-06-03
2026/00438/FUL
Proposed Rear Balcony at Ground Floor
138 Gladstone Road, Barry
Permitted
Glamorgan2026-06-10
2026/00722/FUL
Wrap-around extension: rear single-storey, side two-storey.
14 Ger Y Llan, St Nicholas
Undecided
Glamorgan2026-09-23
2025/01154/1/NMA
Non Material Amendment to 1) Replacement of Kitchen window on North West Elevation with sliding patio doors 2) Replacement of frameless glass window on North West Elevation with 'traditional' window construction of Planning ref 2025/01154/FUL: Demolition of the existing shed and a new, single-storey kitchen extension at the rear of the property, with a new back door on the side.
Westra Fawr Farm, Westra, Dinas Powys
Withdrawn
Glamorgan2026-07-06
24/01537/HSE
Removal of existing Flue termination and replacement with smaller more efficient unit
1 Dogo Street Pontcanna Cardiff CF11 9JJ
Permitted
Cardiff2024-06-27
26/00277/NMA
Proposed Non-Material Amendment to Planning Application 25/02089/HSE- Minor changes to the side elevation, including relocating the side door closer to the rear.
The Cherries 21 West Orchard Crescent Canton Cardiff CF5 1AR
Permitted
Cardiff2026-02-10
25/0846
LAWFUL DEVELOPMENT CERTIFICATE (PROPOSED) FOR ATTIC CONVERSION INCLUDING HIP TO GABLE ROOF EXTENSION AND REAR DORMER AND GARAGE CONVERSION INCLUDING HIP TO GABLE ROOF EXTENSION
4 The Coldra Newport NP18 2LP
Rejected
Newport2025-10-08
25/02462/HSE
Demolition of existing rear conservatory and construction of new two-storey rear extension (Renewal of planning permission ref. 20/01209/DCH)
6 Vaughan Avenue Llandaff Cardiff CF5 2HR
Undecided
Cardiff2025-10-24
14/02911/MNR
CHANGE OF USE FROM RESIDENTIAL HOUSE TO PLACE OF BUSINESS FOR DENTAL PRACTICE
28 COWBRIDGE ROAD WEST, ELY, CARDIFF, CF5 5BS
Permitted
Cardiff2014-12-12
24/01815/HSE
Construction of single storey side and rear extension.
42 Plasturton Gardens Pontcanna Cardiff CF11 9HF
Permitted
Cardiff2024-08-02
25/01289/HSE
Erection of a single-storey rear extension and side infill extension with a roof terrace above.
36 Mill Road Ely Cardiff CF5 4AG
Permitted
Cardiff2025-06-04
25/01782/HSE
Rear ground floor extension, rear first floor extension and loft conversion with two pitch roof rear dormers
8 Severn Grove Pontcanna Cardiff CF11 9EN
Undecided
Cardiff2025-07-31
26/00424/HSE
Single storey rear extension, pitched roof to existing single storey extension and loft conversion with two pitch roof rear dormers. Installation of solar panels. Replacement windows and door to front elevation.
8 Severn Grove Pontcanna Cardiff CF11 9EN
Permitted
Cardiff2026-03-02
21/00864/MJR
DISCHARGE OF CONDITIONS 5 (BOUNDARY FENCE) AND 7 (CYCLE PARKING STORE) OF 18/00418/MJR
Land To West Of Equinox Colchester Avenue Penylan Cardiff
Conditions
Cardiff2021-04-08
14/00899/DCH
CONVERT EXISTING BUILDING FROM EXISTING ARRANGEMENT OF 3 NO. DWELLING FLATS, TO BECOME A SINGLE FAMILY DWELLING HOUSE. CONSTRUCT NEW EXTENSION TO REAR ANNEXE OF EXISTING BUILDING. CREATE NEW WINDOW AND ROOFLIGHT OPENINGS TO SIDE ELEVATION. CREATE NEW WINDOW OPENINGS TO REAR ELEVATION.
1 DOGO STREET, PONTCANNA, CARDIFF, CF11 9JJ
Permitted
Cardiff2014-04-14
24/P/0658/HH
New double storey side extension
Lock House Greenhill Road Woodside Cwmbran Torfaen NP44 3DQ
Rejected
Torfaen2024-10-23
Page 1 of 2

Contact Dennis Hellyar Architects Limited

Dennis Hellyar Architects Limited hasn't claimed this listing yet. We'll tell them an enquiry is waiting, but your name, contact details and message are only shared if they claim it. Unclaimed enquiries are deleted after 90 days.

Request removal