Alder Road Project | Guest Suite / Office & Botanical Half Bathroom Reveal, Mortlake

This multi-functional space houses an office that can convert into a guest bedroom, with an attached half bathroom featuring bold botanical wallpaper. It’s part of a full property renovation in which we extended into the side return of a ground floor flat in Mortlake, London, to transform the living space and make it function better for a small family.

Read more about the Alder Road Project here:

Side Return Extension Plans
Hallway Renovation
Black & White Guest Bathroom Renovation
Master En-Suite Renovation
Side Return Extension Reveal: Kitchen/Living/Dining 

The Before & The Brief

This area previously housed a small utility room, part of the old kitchen/dining area, and extended partially into the back garden.

The client wanted to add an extra bedroom in what had been a two bed, two bath property, and create a new office space separate from the open-plan living area. The addition of an attached half bathroom means that this can function as a separate guest suite when needed-perfect when family come to visit.

Side Return Extension Before with Dining + Utility AreasSide Return Extension Mortlake Floor Plan - Office + Guest Bed + Half Bath Before + After

Guest Bedroom / Office + Botanical Half Bath Plans

Unlike the other rooms in this maisonette, we didn’t focus on the interior design for the bedroom/office, because the client wanted to focus that energy (and budget) elsewhere. Instead, we kept the furnishings and decor minimal aside from a murphy bed that folds away and converts into a generous work space.

In the attached half bathroom, however, she wanted to go bold with botanical wallpaper.

Mood Board - Botanical Half Bathroom Emmerson & Fifteenth Interior Design

Botanical Half Bathroom Reveal

Because the half bathroom measures 800 x 1260mm, we opted for a pocket door to maximise space.

East Sheen Side Return Extension Project Botanical Half Bathroom Ensuite WC Emmerson Fifteenth Interior Design

Sliding pocket door in small maximalist bathroom with botantical wallpaper

Bold botanical wallpaper is paired with black fixtures and warm brass fittings – finishes that we echoed in the adjoining office/guest bedroom.

Maximalist Botanical Half Bathroom with black toilet by Lizzie Ravn Emmerson & Fifteenth Interior Design

Black toilet in small maximalist bathroom with botantical wallpaper

We paired the botanical wallpaper with a textured ceramic gloss wall tile. A space saving, budget friendly black sink centered on the wall creates symmetry and better visual balance.

Space saving black sink with brass gold tap in small maximalist bathroom with botantical wallpaper

Small bathroom with space saving black sink, black hex floor tile and brass gold tap in small maximalist bathroom with botanical wallpaper

Overhead, a feature pendant casts pretty shadows across the petite half bathroom. 

Small bathroom with Moroccan star pendant and pocket door in small maximalist bathroom with botanical wallpaper

Maximalist bathroom with botanical Amazonia wallpaper by Mind the Gap

Guest Bedroom / Office Reveal

The maximalist botanical half bathroom both contrasts with and complements the clean, minimal office / guest bedroom.

Office / guest bedroom with murphy desk bed adjoining botanical half bathroom

As I mentioned, this room isn’t styled – it’s a space that the client will add to over time.

Looking back out and onto the garden, we commissioned a bespoke cabinet to house the boiler and add extra storage space. A black metal exterior door leads out to the garden and echoes industrial elements in the adjoining living and dining area

Crittall style black metal exterior door with Velux roof light and vertical radiator in side return extension project Mortlake London

Bespoke carpentry housing boiler unit with olive green velvet curtain and brass gold hardware

A Velux roof light above the exterior door floods the office / guest bedroom with natural light, while a vertical radiator leaves wall space open to add additional storage furniture in the future.

It’s a calm, functional area where you can tuck yourself away if you’re working from home, or for visiting guests to retreat to.

Crittall style black metal exterior door with Velux roof light and vertical radiator in side return extension project Mortlake London

Office / Guest Bedroom & Botanical Half Bathroom Sources

Office / Guest Bedroom

External Door – Bifold Door Factory
Radiator – Best Heating
Flush Mount Ceiling Light – Pooky

Botanical Half Bathroom

Plumbing Fixtures – Better Bathrooms
Wallpaper – Amazonia by Mind the Gap
Wall Tile – Your Tiles
Star Pendant – Dar Lighting
Paint – Little Greene Lamp Black


NEED HELP WITH A SPACE IN YOUR HOME?

I work with clients across London and the UK, on projects ranging from room styling and home staging, to project managing full renovations from concept to completion. Your initial consultation is free of charge – let’s chat!

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