Posted by Living with Luxury
A well-placed mirror is the closest thing interior design has to sleight of hand. It borrows light from a window, doubles the apparent depth of a narrow hallway and gives a plain wall a reason to be looked at. Yet mirrors are bought carelessly more often than almost any other piece: picked for the frame alone, hung too high, or positioned to reflect the one view in the room nobody wants doubled. This guide covers how to choose a mirror that earns its wall space — and exactly where to put it.
Why mirrors do so much work in a room
Mirrors earn their keep three ways. First, light: a mirror opposite or adjacent to a window effectively adds a second, softer light source, which matters enormously in UK homes where winter daylight is rationed. Second, space: a generous mirror extends sightlines, so small rooms read larger and low ceilings feel less pressing. Third, composition: a sculptural mirror acts as artwork, anchoring a wall the way a painting would — with the advantage that its contents change with the room and the hour.
The trick is deciding which of the three jobs you are hiring the mirror to do. A mirror bought for light wants to face brightness; a mirror bought as art wants to be seen straight on from where people actually sit. Choose the job first and the style questions mostly answer themselves.
Choosing the right size
Undersized mirrors are the most common mistake. A small mirror on a large wall looks like a porthole; it fragments the wall rather than opening it. Two rules of thumb serve well. Over furniture — a console, sideboard or mantel — the mirror should be roughly two-thirds to three-quarters the width of the piece beneath it, and hung so the bottom edge sits 15–25 cm above it. On an open wall, be braver than feels natural: a mirror of a metre or more holds its own, while anything under 60 cm wide needs company (a pair, or a grouping) to avoid looking lost.
Full-length mirrors deserve a mention of their own. Leaning a tall mirror against a bedroom or hallway wall is both practical and forgiving — no drilling, easy to reposition — but make sure it is secured with a discreet safety strap if children share the house.
Shape and frame: matching the mirror to the room's character
Round mirrors soften. In rooms dominated by straight lines — rectangular sofas, square shelving, panelled doors — a circle is a relief for the eye, which is why round designs like our Round Metallic Hammered Mirror work so hard over consoles and fireplaces. Rectangular and arched mirrors, by contrast, bring order: they echo architecture, suit hallways and dressing areas, and visually raise a ceiling when hung portrait-fashion.
Frames carry the personality. A hammered or antiqued metallic frame catches light and reads as jewellery for the wall; sculptural and organically shaped designs, such as the pieces in our luxury mirror collection, blur the line between mirror and art and want breathing room rather than clutter around them. Minimal or frameless mirrors disappear politely and are the right call when the job is purely light and space rather than statement.
Placement, room by room
Living room. The classic positions are over the mantelpiece or behind a sofa. Over a fire, keep the mirror's centre at about eye level for someone standing — typically 150–160 cm from the floor to centre — and resist tilting it forward, which reflects the ceiling. Behind a sofa, go wide and hang low enough that seated guests are not decapitated in the reflection.
Hallway. The highest-value position in the house. A mirror near the front door is functional (last check before leaving) and transformative in narrow spaces: placed on the long wall, it visually doubles the hall's width. If the hallway has a console table, pair them — mirror above, lamp beside — for an arrangement that welcomes rather than merely stores keys.
Bedroom. A full-length mirror is non-negotiable; the question is where. Beside the window (not opposite the bed, which many people find unsettling at 3am) gives the best dressing light. A smaller decorative mirror above a chest of drawers adds depth without turning the room into a hall of reflections. For dressing tables, a dedicated or integrated mirror earns its place — several of our dressing tables include foldable mirrors for exactly this reason.
Dining room. Candlelight and mirrors were made for each other. A large mirror on the wall beside the table doubles the glow of evening lighting and makes dinner for four feel like an occasion. Avoid positioning it so diners stare straight at themselves — side-on placement flatters everyone.
Bathroom. We have covered this in detail in our guide to vanity mirror ideas, but the short version: scale the mirror to the basin unit, and prefer wall lights either side over a single light above, which casts unflattering shadows.
What to reflect — and what not to
A mirror doubles whatever it faces, so audit the view before you drill. The best reflections are windows, garden greenery, chandeliers and pendant lights, artwork, and open space. The worst are cluttered shelving, radiators, television screens and the inside of an open-plan kitchen mid-cooking. Stand where the mirror will hang, hold up a phone on selfie mode at the planned height, and you will see precisely what the mirror will show before committing to wall plugs.
Caring for a quality mirror
Clean the glass with a barely damp microfibre cloth or a little diluted white vinegar — never spray cleaner directly onto the glass, as liquid wicking behind the edge is what causes the black spotting (desilvering) that ruins older mirrors. Dust metallic and hammered frames dry; avoid abrasive cream cleaners on any finished frame. Hung properly on fixings rated for its weight, a good mirror is effectively a lifetime purchase.
Related reading
For more on this topic, read our guide to choosing designer coffee tables.
Frequently asked questions
How high should I hang a mirror?
Centre it at standing eye level — around 150–160 cm from the floor. Over furniture, let the relationship with the piece below govern instead: 15–25 cm of wall between the furniture top and the mirror's bottom edge looks right.
Do mirrors really make a room look bigger?
Yes, measurably so — but placement decides how much. A mirror reflecting a window or an open doorway extends the room's apparent depth; a mirror reflecting a cluttered wall simply doubles the clutter.
What size mirror should go above a console table or sideboard?
Roughly two-thirds to three-quarters of the furniture's width. A 120 cm console suits a mirror of 80–90 cm across; going slightly larger is almost always better than smaller.
Is it bad to hang a mirror opposite a window?
It is usually the best position in the room — it reflects daylight deep into the space. The one exception is direct low sun striking the glass, which can cause glare; an adjacent wall solves it while keeping most of the light benefit.
How do I stop a mirror developing black spots?
Black edge-spotting is moisture damage to the silvering. Never spray cleaner onto the glass (apply it to the cloth instead), avoid hanging mirrors where condensation sits, and in bathrooms choose mirrors made for humid rooms.
