01
Rear
Rear extensions
Extend from the back of the property to create additional kitchen, dining, family or flexible living space.
Greenhaven Builders Limited
Service 02 / House Extensions
Cardiff, United Kingdom
Residential extension services
More space, connected to the home you value.
Greenhaven Builders Limited delivers residential extension projects designed to create practical additional space while maintaining a considered connection with the existing property.
Project focus
Additional residential space
Based in
Cardiff, CF10 1AX
Service 02
House Extensions
EXISTING / CONNECT / EXTEND
01
Understand the need
02
Define the connection
03
Construct the new space
04
Integrate the finish
01
Service overview
Extend without starting again
An extension can change how the entire home works.
Additional floor space is only one part of an extension project. The position of the new room, its connection with the existing layout, natural light, circulation and external appearance all influence how successful the completed space feels.
Extension possibilities
Ask about your property
Different properties create different opportunities.
These are common extension approaches rather than fixed recommendations. Suitability depends on the property, site, proposed use and relevant planning or technical requirements.
02
Side
Side extensions
Use suitable space beside the existing property to broaden the layout or create an additional functional area.
03
Combined
Wraparound extensions
Combine side and rear space where suitable to support a broader reorganisation of the ground-floor layout.
04
Vertical
Multi-storey extensions
Add space across more than one level where the property, proposal and applicable requirements allow.
EXISTING HOME
NEW SPACE
Connecting old and new
01
02
03
About Greenhaven Builders
The transition matters as much as the additional room.
A successful extension should improve the wider property. The relationship between the existing home and the new space influences movement, light, proportions and everyday use.
Layout connection
Consider how people will move between the existing rooms and the extension.
Visual relationship
Review how materials, proportions and finishing details work together.
Practical purpose
Keep the intended use of the new space central to project decisions.
Extension journey
Five stages from an idea to additional space.
Every extension is different. This sequence provides a general view of how a residential extension project may progress.
01
Need
Understand
Identify what the existing property lacks and how the additional space will be used.
02
Scope
Define
Establish the proposed extension, available information and important project considerations.
03
Prepare
Organise
Prepare the practical construction route and relevant project requirements.
04
Build
Construct
Progress through the structural, external and internal extension stages.
05
Connect
Complete
Bring the existing and new spaces together through coordinated finishing details.
02
Design priorities
More than extra floor area
Important relationships within an extension project.
Purpose
Define what the new area needs to provide and how it will be used each day.
Circulation
Consider movement between the extension and the existing parts of the property.
Natural light
Review how the proposed changes may affect light within both old and new spaces.
External form
Consider how the extension relates to the appearance and proportions of the property.
A space with a clear purpose
Plan the extension around the life it needs to support.
An extension may create a kitchen and dining area, family room, workspace, utility area, bedroom or another type of residential space. The intended use should guide the layout and construction decisions from the beginning.
Everyday use
Space with a defined purpose
Preparing an enquiry
Useful information for an initial extension conversation.
You do not need to have every detail confirmed. Sharing the information already available helps establish a clearer starting point.
01
The property address and type
02
The area of the property you are considering extending
03
How you want to use the additional space
04
Any available plans, drawings or property information
05
Your most important priorities for the completed project
PROJECT NOTE
UK
Extension requirements vary by property and proposal.
Planning permission, permitted development, building control, structural, party wall and other requirements may apply. Requirements should be confirmed for the specific project with the relevant qualified professionals, authorities and advisers.
Extension questions
Before adding space to your home.
These answers provide a general starting point. Exact requirements depend on the property, location and proposed extension.
Ask about your propertySuitability depends on the property layout, available site space, intended use and applicable requirements. Rear, side, wraparound or multi-storey approaches may be considered where appropriate.
No. You can begin with the property address, the area being considered, how you want to use the new space and any information currently available.
Some extensions may require planning permission, while certain work may fall within permitted development rules. The position must be confirmed for the specific property and proposal with the relevant professional or authority.
Timescales vary according to size, complexity, site conditions, approvals, specification, material availability and the work required to connect the new and existing spaces.
An extension project may include changes to how existing rooms connect with the new area. The suitability of any alteration must be reviewed for the specific property.
Extension enquiry
Would more space improve your home?
Share the property details, the area you are considering extending and how you want to use the new space.
Direct email
support@greenhavenbuilders.co.uk
Business address
Greenhaven Builders Limited
15 High Street
Cardiff, United Kingdom, CF10 1AX
EXTENSION ENQUIRY