Called Mount View, the project involved overhauling the ground floor of the family house, to create a spacious kitchen and dining room connected to the garden, and converting the basement into a guest suite.
Externally, these renovated spaces are all clad in handmade tiles, in a pale pink shade that complements the building's red brick walls.
This ties into a 1970s-style palette of warm, pastel tones, inspired by the client's memories of their childhood home.
"Our client had a particular love for subtle warm colours, drawing references to her time growing up," said Johan Hybschmann, who co-founded Archmongers alongside Margaret Bursa.
"She came to us with this great sense and interest in colour harmonies," he told Dezeen, "and we found a way to meaningfully apply a suitable palette to the full house, which works well with the existing details and original materials."
Originally the house only had a half-height basement that could only be used for storage.
After unpinning the original walls, it was possible to turn this into a studio flat with 2.6-metre-high ceilings and a separate entrance.
On the ground floor, an extension to the rear of the building creates space for the new open-plan kitchen and dining room.
The floor level here has been lowered, giving the room high ceilings and allowing activity to flow out into a sunken patio.
The pink tiles cladding these two revamped areas were custom made specifically for this project by Cotswolds-based manufacturer Tiles of Stow.
Some of the tiles include a vertical ridge, which gives texture to the facades.
It is a material that Archmongers has become familiar with, having used it for previous projects such as Clock House.
The idea is to reference the tiles used in various Victorian buildings, from pubs to schools, but to give them a modern feel that follows architects like Alvar Aalto.
"We've used tiles as a facade material for a few of our project as they are very hardwearing, add colour and texture, and reflect light very beautifully," said Hybschmann.
Tiles also feature in other areas, including the sunken patio, which is surfaced with a square, dark tile. Meanwhile, the family bathrooms feature a square pink tile, which is contrasted by various coloured taps.
In the kitchen, a yellow-toned kitchen features alongside a green vinyl floor. This space is filled with natural light, thanks to four skylights integrated into the roof.
The works also included an expansion of the hallway, incorporating built-in storage with scallop-fronted doors.
"Working with a house of such generous proportions revealed so much about the original intentions of Victorian design. Building on this framework and being able to create spacious additions to unlock the house was a fun challenge," added Hybschmann.
"We've created beautiful yet practical light-filled spaces that give the house a contemporary feel."
Photography is by French + Tye.