Single Storey Extension


At 96 The Drive we designed a single-story extension replacing a single skin brick addition that was in disrepair to the rear of the property. This created a new open plan Kitchen/Diner with an island unit and Utility Room. Similar to 44 Shaw Crescent what was particularly tricky on this project was keeping the extension roof under the window cills to first-floor windows. Trying to do this with a pitched roof design meant a very low roof pitch meaning only certain roof tiles and roof lights can be used which can increase the cost. The difficulty with a pitch roof design is keeping the surface of the roof a minimum of 150mm below the window cills at the first-floor level which is required to stop water penetration into the rooms above the extension. This is a common issue for rear single-story extensions and there are various ways of keeping the roof low whilst creating a sloped tiled finish.

What was included in this home renovation project

  • Measured CAD survey
  • Concept designs in AutoCAD
  • Planning permission application
  • Structural Detailing
  • Construction drawings including Drainage, Mechanical and Electrical Drawings
  • Building Control Application
  • Specification
  • Budget Costing

For our clients at 96 The Drive, Bexley we undertook a complete Architectural Design Services comprising of the following Project Brief:

  1. Demolish existing lean to at the rear of property making room for new single storey extension.
  2. Build new single storey extension to rear.
  3. Suggest going into rear garden with extension 3-4m from existing main house rear wall and going full width of house.
  4. Demolish existing kitchen/dining room external rear wall and internal separating wall between kitchen/dining room to form large, luxurious open plan Kitchen/Diner continuing into new extension.
  5. This will provide a fantastic large open plan rectangular space for your Kitchen/Diner perfect for incorporating an island unit/breakfast bar and dining table, even a soft seating chill out area as well.
  6. Add Bi-folding doors to rear elevation maximising natural light in Kitchen/Diner bringing the outside in. I would also like to design a further option with a window over the sink just to make sure we have considered everything. This will also provide a nice outlook over the garden.
  7. Raise Patio Area creating flush floor finish through bi folds into Kitchen/Diner. In summer with bi folds open this creates a seamless transition between outside and inside effectively making the Kitchen/Diner feel even larger. Particularly if new raised external patio area is fitted with identical tiled floor finish to Kitchen/Diner.
  8. Form new step from proposed raised Patio Area to Garden.
  9. Replace Hallway/Kitchen door with a glass door which will provide an amazing light and airy outlook all the way from the front entrance door to the back garden. This will create that critical first impression ‘wow’ factor when coming through the front entrance door.
  10. Form new ground floor Utility Room and WC in current Kitchen/under stairs position.
  11. Extension roof options:
  12. New flat roof – Can incorporate large over-hanging roof incorporating LED lights such as image 10 attached. Creates a nice modern contrast to a traditional property also easy to incorporate glass skylights maximising natural light in this area. System flat roofs can create an even more modern roof finish, they are high performing, come with good guarantees, must be installed by approved installers but are more expensive. They create a seamless, slick, smooth modern finish. See image 8 and 10.
  13. New pitched roof – More in keeping with traditional house designs and tend to cost more than flat roofs, again can introduce remote controlled roof windows maximising natural light into this area. The ceiling can be vaulted to give a more spacious feel. This is the most popular form of extension roof construction and are pretty much maintenance free, again you can have a large overhanging section of roof with LED’s. See images 3, 4, and 5.
  14. First Floor Conversion:
  15. Remove door and internal dividing wall between WC/Bathroom and install a new door facing the landing, enabling the existing Master Bathroom to be opened up.
  16. With a well-designed and properly planned out single storey extension and first floor conversion including total property refurbishment, your property would increase in value considerably with you now having a larger Master Bathroom, also an open plan Kitchen/Diner with possible separate Utility Room and ground floor WC which are all currently in high demand in the property market

Architectural services carried out during this project:

Full Architectural designs, planning approval, structural and construction designs, Building Control approval.

Looking for a South East Architect?

Our Closest Bluelime Home Design Office to this project is  Bexley we also have offices also in  Dartford,  Croydon, Bexley,  Erith, Chiswick , Dulwich , Ealing , Hampstead ,  Kensington, London City , Richmond , Romford , Stratford and Bromley.