The South Side Observatory

A compact and sturdy roll-off roof observatory designed to optimise sight lines to the South with a rolling side wall.

It’s an interesting question: what do you do when the constraints of your site mean the observatory can’t be oriented North-South, with the roof rolling to the North? That was the case here, with the side of the observatory facing south over a neighbour’s hedge. The answer starts with our slim rolling roof (the slimmest in the business, as far as we know) – which retains sight lines to the West – and goes further with our beautifully-engineered rolling wall on the South side.

Installed over two days in Nottinghamshire, the South Side observatory features HardiePlank cladding in ‘Grey Slate’, and our hard-wearing OSB wall lining. An Altair Astro ‘SkyShed’ pier provides the perfect support for our customer’s Meade LX Telescope, with room to add a wedge later if needed for astrophotography.

Highly recommended! Neil at Outsideology did a fantastic job designing, building, and installing my observatory as well as providing brilliant after-sales. Solidly built with materials that will last. First class company and a pleasure to do business with.

Simon Smith via Google Reviews

Rolling Wall

If your best horizons don’t line up with the end wall of the observatory, a rolling wall (essentially part of the wall attached to the rolling roof) is a great way to lower the wall height on one side. These can be on one or both sides of the observatory, and can be combined with a flap on the end wall to provide the best views in more than one direction. Maybe one day, we’ll design one that folds up into a tiny cube, but for now, this is the best way to get “Big Sky” from a roll-off roof observatory!

Hardieplank Cladding

James Hardie’s HardiePlank cladding has proven very popular for our observatories. It’s a fibre-cement cladding designed to have the appearance of painted cedar, and is available in a range of over 30 colours. Its particular qualities of dimensional stability and longevity make it the perfect choice for those wanting a beautifully consistent and long-lasting finish.

Built-In LED Lighting

Our latest observatories feature striking red and white LED light built into the walls! The separately-switched red and white strips are driven by very high quality power supplies and use a Varilight VPro dimmer, allowing them to be dimmed to almost nothing – so you can have as much or as little light as you wish. Building them into the walls means no bulky fittings or obstructions, maximising the space in your observatory.

Overall Size (mm):2100 (L) x 1800 (W) x 2078 (H)
 Observatory Size (Internal, mm):1890 (L) x 1590 (W) x 1650 (H)
 Warm Room Size (Internal, mm):Not included
 Total length including frame (mm):3900
 Roof type:Flat (Pent) roof with rolling wall
 Exterior Cladding:HardiePlank – “Grey Slate”
 Interior Wall Lining:OSB3
 Roof Covering:One-piece EPDM rubber membrane
 Roof Pitch:<1 degree
 Additional Features:
LED strip lighting built into walls
Rolling side wall
Location:Nottinghamshire, UK
Completed:January 2022
Approximate Project Cost*:£5,300

* Approximate project cost does not include VAT, haulage, groundworks, telescope or pier, and represents what a similar project might cost if completed now, including any improvements to our base specification.