Boarshurst Lofts

Extensions Plans  

Dormer Loft Ideas and Design

Realising your dormer ideas with detailed knowledge & design

Interior Design

Dormer rooms can add space, functionality, character and value to a property. To realise the true potential of your loft, our architectural surveyors draw on years of design and build experience to create a space efficient solution that will meet your needs.

En Suite Ideas (Click main image for example)

Ever popular are en-suite loft bedrooms. Typically, the en suite is built under any pitched roof section, as space efficient design and products allow the room to feel very much like a conventional bathroom, while reserving the dormer section for the bedroom itself.

In many of our examples, the shower unit is positioned along the internal wall, and pipe-work for the sink and WC is conveniently concealed under low ceiling areas. Intelligent positioning of RSJ supports will allow greater recess for a semi-pedestal basin and WC and leave free floor area.

Strategically positioned roof windows add actual head height and perceived space so a bathroom room feels larger and is comfortable to use.

Where space allows, as in a large bungalows and truss loft conversions, a conventional bath/shower or wet-room is possible. Working through ideas ensures all realistic options are explored and you will have developed the best loft for your needs. Our aim is to meet expectations that usually include making the loft attractive and spacious while adding value to a home.

Double Bedrooms

If it's a superb double bedroom with generous wardrobe space then a large dormer will let you try- many layout ideas, such as positioning the bed under the sloping ceiling. Consider the position of the radiator in planning to not restrict room options later.

Twin Bedrooms

If you're the needing maximum rooms, say for a growing family, then two extra bedrooms makes available significant personal space.

If developing to rent rooms to lodgers (non family members) then a dormer can pay for itself relatively quickly. Let our surveyor know if this is your plan as you may need additional features so the three storey property complies with House in Multiple Occupancy status and can be licensed as an HMO.


Giving over a side dormer to a stairwell may at first seem a space intensive idea, but there are significant benefits to a large landing area such a light and airy feel, that makes a feature a kite-wind staircase, vaulted ceiling and feature lighting. There may be structural reasons too for this design. Our double dormer example required the internal wall building-up to support the dormer RSJ.

Design Ideas

We often draw out one of the key benefits of a third storey - low horizon, good light and views - with innovative use of glass. This works well for banisters and Juliette balconies, providing a contemporary look that allows light to flow freely into the loft and stairwell, and improved views when entering the loft and externally.

Not every local authority allow a Juliette balcony under permitted development rights, but where they do they are fabulous if facing in any way south and where there are views.


On dull days and at sundown we'll reach for the light switch, and where designed correctly a loft will be transformed by mood lighting.

Dimmable downlights are typical as they keep the ceiling clear of obstruction and they are available with direction control so when in a pitched roof they can point down vertically. If used use as a home office, then downlights will not appear reflected in a computer screen.


At planning stage we help you consider detailed ideas on room use, such as layouts, so you can design in storage and shelving options if required. Bedrooms, for example, are generally places to relax and need cupboard space and perhaps bedside cabinets, a small table and TV.

Home offices on the other hand should encourage creativity so desk position and document storage and shelving will influence location of power sockets, ventilation and heating.

Exterior Appearance

Your roof has an existing and distinctive style and any dormer conversion or cottage dormer window needs to integrate harmoniously with the design. This influences the shape, appearance of materials such as cladding, windows and sills. Making the right decisions adds value and ensures building regulations are met.

Your final design may be a combination between personal taste, existing house style, surveyor opinion and what is allowed under Permitted Development Rights.

Shape and cost

Eyebrow Dormer Conversion
Eyebrow Dormer
  • Box style flat roofs generally provide maximum value by area gained, but they don't suit every roof type or house style.
  • To maximise 'kerb appeal' on traditional detached properties consider dual pitched and hip-end styles where height allows or a beautiful eyebrow dormer.
  • For modern properties, the prefabricated Velux dormer will enhance a contemporary look. See dormer windows for more detail.
Bungalow dormer roof conversion
Bungalow roof dormer

Cladding options for the dormer cheeks include lead (most expensive and long lifespan), slate, tile, render or timber, uPVC cladding (cheapest).

Researching properties in your local area is an excellent way to generate ideas because architectural styles will be similar. The internet should help to - on RightMove for example filter for similar type properties and use Google Street View to view different angles.

Dormer Conversion
Dormer conversion

Boarshurst Lofts

Making the most of your loft.

Call 0800 505 3414 to discuss your dormer design ideas.

Top Top Extensions Plans

:: SEE ALSO ::

Double Dormers Example

Loft Ideas

Loft Playroom Bedroom Bathroom

Loft Livingroom Office Kitchen

Planning Permission