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Planning application

23 Rosehill Terrace Mount Pleasant Swansea SA1 6JN

Awaiting decision Swansea 2026/1490/FUL Full Plans

Works: Extension Loft or dormer

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Retention and completion of first floor rear extension and second floor rear dormer (Note: The whole house is being used as an Airbnb, Use Class C6)

As published by the council, reference 2026/1490/FUL

Application record

Reference
2026/1490/FUL
Type
Full Plans
Status
Being Considered
Received
10 Sep 2026
Validated
10 Sep 2026
Ward
Uplands - Bay Area
Postcode
SA1 6JN

Comment by 2 October 2026

The council is taking comments on this application until then. Have your say on Swansea's portal.

Site history

Applications at this address on the Swansea register

This site has had 2 applications since 2025: 0 approved, 1 refused.

  • 2025/2560/FUL Refused

    23 Rosehill Terrace Mount Pleasant Swansea SA1 6JN

    Retention and completion of first floor rear extension and second floor rear dormer.

    Decided 23 Jan 2026 Full applications

Timeline

Dates from the published record

  1. 10 Sep 2026

    Received by Swansea

  2. 21 Sep 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 5 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Swansea took a median of 55 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Atrium Architecture Ltd Agent, an architecture practice registered in Swansea

Active · incorporated 2020 · Swansea

153 applications on PlanIndex · across 2 councils · 83% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

Plans, drawings, consultee responses and the officer's report

10 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Watch members (£5 a month) open the document list from here.

Open the documents

What happens while it is decided

This application is with Swansea for determination, against a statutory target of eight weeks. Over the last year Swansea decided full applications in a median of 61 days. More in our guide to how long planning decisions take.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 23 Rosehill Terrace Mount Pleasant Swansea SA1 6JN

    2025/2560/FUL Submitted 1 Dec 2025 50 yards away

    Retention and completion of first floor rear extension and second floor rear dormer.

    Refused Full applications Extension Loft or dormer 13 docs

  • 12 Rosehill Terrace Mount Pleasant Swansea SA1 6JN

    2026/1281/ELD Submitted 5 Aug 2026 50 yards away

    Use of property as a Class C4 HMO (application for a Certificate of Lawfulness)

    Refused Lawful development 6 docs

  • 12 Rosehill Terrace Mount Pleasant Swansea SA1 6JN

    2026/0598/FUL Submitted 14 Apr 2026 50 yards away

    Change of use from 6 bedroom HMO (Class C4) to 7 bedroom HMO (Unique Use Class)

    Refused Full applications 8 docs

  • 9 Penmaen Terrace Mount Pleasant Swansea SA1 6HZ

    2026/0702/ELD Submitted 28 Apr 2026 50 yards away

    Use of property as two units. The basement is used as a 1 bed flat for two occupants and the ground, first and second floor are used as a 6 bed HMO (Class C4) (application for a Certificate of Existing Lawful Development)

    Granted Lawful development 26 docs
    Several homes

  • 35 Montpelier Terrace Mount Pleasant Swansea SA1 6JW

    2025/2609/FUL Submitted 10 Dec 2025 100 yards away

    Change of use of 3 no. one bedroom flats to 4 no. one bedroom flats with rear dormer insertion, and creation of rear access with a parking space

    Granted Full applications New dwelling Loft or dormer 25 docs

  • York House 4 Constitution Hill Mount Pleasant Swansea SA1 6JH

    2026/0685/FUL Submitted 27 Apr 2026 100 yards away

    83% historically approved · decision due ~16 Jul

    Rear garage and workshop

    Awaiting decision Full applications 6 docs

In Swansea

  • 2026/0595/FUL Granted

    28 The Kingsway Swansea SA1 5JY

    Change of use of ground and first floor to offices (Class B1); change of use of third floor to residential and addition of two further storeys to provide a total of 13 residential apartments, with associated external alterations and works (amendment to planning permission 2022/2916/FUL granted on 12.10.2023)

    Received 14 Apr, published by the council 28 Jul 2026 Full applications
  • 2026/0391/FUL Withdrawn

    Swansea Marina Tourer Park Maritime Quarter Swansea SA1 1UN

    Expansion of the existing Marina Tourer Park by converting part of the existing Tawe Lock Car Park into two additional touring spaces with associated facilities

    Received 10 Mar, published by the council 28 Jul 2026 Full applications
  • 2026/1518/FUL Awaiting decision

    128 Frampton Road Gorseinon Swansea SA4 4YG

    Ground floor side extension

    Received 17 Sep, published by the council 21 Sep 2026 Full applications
  • 2026/1517/FUL Awaiting decision

    42 Eversley Road Sketty Swansea SA2 9DA

    Change of Use from C4 to C6 for a maximum of eight guests

    Received 16 Sep, published by the council 21 Sep 2026 Full applications
  • 2026/0886/FUL Refused

    216 Pentregethin Road Cwmbwrla Swansea SA5 8AU

    Two storey side extension

    Received 26 May, published by the council 28 Jul 2026 Full applications