Planning Applications and Permissions in Southwark


We provide a full range of services in the Southwark area including:



  • Planning Application Drawings (including Plans, Sections, Elevations etc.)
  • Retrospective Planning
  • Building Regulation Drawings for Building Control in Southwark
  • Consultancy for Commercial Development
  • 3D Visualisations (Immersive Design)
  • Interior Design
  • Spatial Planning and Layout
  • Feasibility Consultancy

Extension Architecture is an experienced team of planning consultants and Architectural designers. With a breadth of experience working in Southwark, architects in our office always keep up to date with changes in planning applications and building regulation within Southwark in particular. They are here to provide friendly and helpful services assisting you from initial design ideas through to planning, building control and into a reality. Our success rate is nearly 100% from house and basement extensions, loft and garage conversions, change of use applications, new builds and commercial planning.


Southwark Planning Applications Extension Architecture Banner Graphic

Our Range of Service in Southwark & London Area

We provide a full range of services in the Southwark area


Our experienced IN HOUSE TEAM of experts are ready to help you and provide FREE planning advice. We are here to help so pick up the phone and call us at 0203 409 4215. Our experience is proven, see our CASE STUDIES to find out what we can do for you!

We can help and give free advice in: Brunswick Park Ward, Camberwell Green Ward, Cathedrals Ward, Chaucer Ward, College Ward, East Dulwich Ward, East Walworth Ward, Faraday Ward, Grange Ward, Livesey Ward, Newington Ward, Nunhead Ward, Peckham Rye Ward, Peckham Ward, Riverside Ward, Rotherhithe Ward, South Bermondsey Ward, South Camberwell Ward, Surrey Docks Ward, The Lane Ward, Village Ward, Bankside, Bermondsey, Borough, Camberwell, Crystal Place, Dulwich, East and West Dulwich, Elephant and Castle, Kennington, Herne Hill, Newington, Peckham, Rotherhide, Surrey Quays, Walworth and the following postcodes SE1, SE5, SE15, SE16, SE17, SE21 and SE22.



Southwark Loft Extension

Extension Architecture were granted planning permission by the London Borough of Southwark for a proposed loft conversion for modern terrace house.

New Build Semi Detached House in Southwark

The brief included design for a newly built semi-detached house with an open space ground floor accommodating the kitchen, living and dinning rooms, as well as three bedrooms.

Double Storey Rear Extension and Loft Conversion in Southwark

The brief for the project included enlargement of a detached house.

Skylight feature for single storey rear extension in Southwark

The project involved a conversion of a semi-detached house in the urban area, into 3 flats consisting of 2×2 bedroom and 1×1 bedroom with existing parking space for 2 cars.

Side Extension & Loft Conversion in Southwark

Property is a detached Victorian building located in an area with mixed residential and commercial developments.

Restoration & Extension of a Mid-19th Century Terrace House in Southwark

The project involved restoration and extension of a mid-19th century terrace house the property is a Grade II listed building.

Roof Conversion in Southwark

We were appointed to produced a number of visualizations for our client for a property which our Interior Designer re-designed and presented to the client for approval.

Planning application for a Cafe in Southwark

We are experienced in creatively collating ideas and translating your brief(s) into actualisations with our Architectural and Interior Design experience.

Architectural Service in Southwark – Process

Any work under Southwark Council, we would undertake a property site assessment by looking into its history and context of the site with its surroundings. In the process of design we aim to be up to date with all the regulations, taking into consideration the conservation and heritage sites and we approach it with a sympathetic proposal to consider the characteristic surroundings.

The rules and regulations for planning application and building regulation vary from council to council. We always keep ourselves aware of the changes in the Southwark Borough. Additionally, we would take time to study the reasons as to why the other properties get approved and refused within the area helping us to better our understanding and maintain a good success rate. Our in house experienced team are always there to help you


Single Storey Extension

Double Storey Extension

Convert to Flat

Loft Conversion

Basement Extension

3D Visualisation


New Builds

Change of Use