View of 71/72 Kingsway

View down street at Pentref Llewellyn, Swansea

Pentref Llewellyn, Swansea

Full Planning Application approval for a 166-home greenfield development in Swansea with Sustainable Drainage Systems.

Project information

Client

Barratt, David Wilson Homes

Location

Penllergaer, Swansea

The Challenge

Barratt & David Wilson Homes appointed us to secure Full Planning Application approval for a 166-home greenfield development in Swansea. The project coincided with the introduction of mandatory Sustainable Drainage Systems (SuDS) across Wales, presenting two major hurdles: applying brand-new design requirements under a very short turnaround, and overcoming widespread industry uncertainty regarding how SuDS features would be designed for year-round aesthetic appeal, long-term management, and adoption.

View of Picton Yard

View down street at Pentref Llewellyn, Swansea

Our Role

To deliver a high-density, highly efficient layout that remained commercially viable, we engaged in extensive pre-application negotiations with Swansea Council. This collaborative process ensured our detailed site layout aligned closely with the council's comprehensive Placemaking SPG while establishing a workable framework for mandatory drainage.

  • Navigating SAB, SuDS & Placemaking: Working closely with the client, engineering teams, and local authority, we integrated Sustainable Drainage Systems—including rain gardens and bioswales—directly into the site's spatial identity. We resolved complex Sustainable Drainage Approval Body (SAB) tree-planting constraints by designing dual-purpose features that combined traffic calming with consistent, multi-seasonal street greening.

  • Elevating Architecture: To establish distinct character areas aligned with the council’s placemaking vision, we refined standard house types to introduce a contemporary palette. Higher-profile parcels within the scheme received an elevated design finish, reinforcing key gateways and legibility across the site.

Connection between Oxford Street and Picton Yard

View down street at Pentref Llewellyn, Swansea

The Outcome

The result is a fully SAB-compliant, placemaking-led scheme where homes actively orient toward mature retained trees, perimeter "play-on-the-way" trails, and a focal gateway green space—demonstrating that mandatory SuDS can enhance, rather than compromise, long-term site aesthetics and urban design. The development is now fully built and occupied.

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Get in touch

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Let's work
together

We want to hear about your project.

First thoughts, or ready to go. Any scale, any time.

Get in touch

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We passionately believe
that what we do matters.

We are motivated by making a positive and real difference, seeing our ideas, our advice, and our efforts come to life, and to have a positive impact on people and the environment.

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Registered in England and Wales. No :8333903

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Contact

029 22 971 727

Cardiff

Westgate House
Womanby Street
Cardiff
CF10 1BR

Bristol

1.13 Temple Studios
Lower Approach Road
Bristol
BS1 6QA

Manchester

Linley House
Dickinson Street
Manchester
M1 4LF

Registered in England and Wales. No :8333903

Copyright © 2026 The Urbanists. All rights reserved.

Contact

029 22 971 727

Cardiff

Westgate House
Womanby Street
Cardiff
CF10 1BR

Bristol

1.13 Temple Studios
Lower Approach Road
Bristol
BS1 6QA

Manchester

Linley House
Dickinson Street
Manchester
M1 4LF

Registered in England and Wales. No :8333903

Copyright © 2026 The Urbanists. All rights reserved.