A home extension is a great way to expand your home. An extension must suits your needs, fit your home and can enhance your lifestyle. We Draw Buildings can develop the drawings for your new extension.

Real Homes have a number of pages devoted to extensions

Design Parameters for Extensions

Extensions come in different shapes and sizes. Even a modest metre-wide side extension to a kitchen can improve things. This can add enough space to significantly improve how the kitchen works. In some situations it might be better to extend out to the rear. In other situations a full height extension might be necessary. There are many permutations to extensions. We can provide extension drawings for all of these. If you are not sure how to extend, we can explore different options. You can choose the best one for your needs.

Have a look at some options from Google Images

Planning & Permitted Development

Many extensions do not need planning approval. Instead, they fall under permitted development. The guidance determines whether your plans need planning. We can help you with this. Each house, boundary and neighbouring property offer a different set of parameters. This can reveal grey areas in the guidance. For this reason, it is sometimes better to apply for planning. There are other benefits in applying for planning. We can apply to change the materials if you so wish. We can make the roofline higher where needed. Sometimes the design is on the limit of permitted development. We can apply for a certificate of Lawful Development. This will confirm that the design is permitted development or not.

Visit our Planning page

Click for information about Planning for Extensions on the Planning Portal

Party Wall Notice

Observe the Party Wall 3m and 6m rules. Sometimes you are building within 3m of your neighbour’s property. Your excavations may be deeper than their foundations. A party wall surveyor will need to issue a party wall notice to your neighbour. You may be within 6m away from your neighbour’s building. Your excavations may be deeper than a 45 degree angle downwards from theirs. Again, the party wall act applies. A party wall notice will need to be issued to your neighbour.

Sometimes you share a boundary wall impacted by the design. Again, a party wall notice will be needed. This informs the neighbour of your project and how it will impact upon them. The neighbour can agree to the contents of the notice. If they do not agree within the timeframe, a party wall award is developed, which states that both parties agree to the changes. Both parties must sign the award before development begins.

Click for party wall information

Example – Typical Sequence – Single Storey Rear Extension

You may want extension drawings for a full width rear extension. The objective could be to open up to the garden. While accommodating open plan kitchen, dining and living space. Consider the entire sequence from the front of the house to the back fence. Imagine a typical 3-bed semi layout. The front room of the house will remain as a snug. The middle supporting wall stays in its original position. The other side of the wall provides space for the kitchen. There is a kitchen island leading onto the dining space. This takes us over the line of the existing back wall into the extension.

Bright sunlight is flooding the dining table through rooflights. Beyond the dining table is the living space. It looks out onto the patio through bi-folding sliding doors. This area has the barbecue with seating and planting and leads onto the grass. The grass gradually turns into a wildflower meadow and becomes more wild. There are rocks and a pond under the trees. Just in front of the boundary fence is a summer house. It has a log burner, books, a painting easel and space to relax.

Extension – Technical Design

After Planning comes the technical design. At this point the architect will add more detail to the design. This will include dimensions, materials and notes. The contractor will be able to build from these technical extension drawings. They will be of sufficient detail to obtain accurate quotations. They will also attract approval from building control.

Visit our Technical page

Click for information about building regulations

Click for information about LABC

Structural Design

Creating large openings in existing walls requires calculations. It is important to have a structural engineer provide these. They also provide structural details for the extension. There is a process for the structural work. The architect normally designs the basic parameters of the extension. The architect sends this to the structural engineer to develop the structural design. The structural engineer issues the structural design to the architect. The architect reviews it and co-ordinates both designs. This can involve changes to both the architect’s works and the structural engineer’s work. When complete, the co-ordinated designs are ready for issue. Both sets of information are sent to the contractor to build from.

Enquire about an Extension

Call the office on 0113 318 3078 or 07772 750 855, email enquire@we-draw-buildings.com or send a message via the contact page.