New Build Flats Under £400,000 in London
✅ 68,118 new build flats and apartments under £400,000 across London by 88 developers.✅ Built by leading UK housebuilders. 10-year warranty, private balconies, and modern resident amenities.
Southmere
by Peabody Abbey Wood1, 2, 3 bedroom apartments for sale with big windows, private decks, spacious rooms, modern fitted kitchens, contemporary bathrooms and energy saving design
Eastman Village
by Barratt London Harrow & Wealdstone1, 2 and 3 bedroom flats, 51–112 sq m, with open plan living, floor to ceiling glazing, private balconies or terraces, high specification, energy efficient systems
The Moxon
by Verta Property Group High Barnet1-3-bed flats, some duplexes, with light-filled plans, handleless two-tone kitchens, stone worktops, Bosch appliances, brushed-brass fittings, fitted wardrobes and MVHR.
Free personalised new build selection
Uniquely Cricklewood
by Unique Property Group Cricklewood1, 2 and 3 bedroom flats for sale with open plan kitchens, large windows, private balconies, shared patios, modern bathrooms, durable floors and energy saving design
Granville Gardens
by One Housing Group Golders Green1 to 4 bedroom homes for sale with modern architecture, large windows, airy rooms, quality finishes, durable appliances, private balconies or gardens and shared green spaces
ICON at Burnt Oak
by Network Homes Burnt Oak1, 2 and 3 bedroom Shared Ownership apartments for first time buyers, offering contemporary comfort, green spaces nearby and easy access to local amenities
West Acre Square
by Southern Housing Group Southall1-bedroom and 2-bedroom flats for sale, with open plan layouts, floor to ceiling windows, private balconies or terraces, modern kitchens and ample fitted storage
Addiscombe Grove CR0
by Pocket Living East CroydonNew 1-bedroom apartments for sale with compact open plan layouts, large windows, neutral decor, modern fitted kitchens, contemporary bathrooms and communal roof gardens
Stroudley Walk
by Poplar Harca Bow RoadStudio, 1, 2, 3 and 4 bedroom apartments for sale, mixed use new build with landscaped terrace, green communal areas, retail and a community hub
Nexus phase 3
by Newlon Living Ponders EndNew 1 and 2 bedroom shared ownership flats with private outdoor space, Amtico flooring, wool mix carpets, ceramic tiled bathrooms and integrated appliance kitchens
Aspect Croydon
by Notting Hill Genesis Sales West Croydon 1, 2 and 3 bedroom apartments for sale with open plan layouts, full height windows, winter gardens, fitted kitchens, modern bathrooms and underfloor heating…
Wireless Apartments
by Dunmoore Isleworth1, 2 and 3 bedroom flats for sale with spacious layouts, good natural light, open plan living, practical storage and durable, modern interiors suited to work and rest
Fielders Quarter
by Bellway Barking1 bedroom apartments for sale with rational layouts, floor to ceiling windows, balconies or terraces, modern kitchens, tiled bathrooms and carpeted bedrooms
Edge
by Countryside Homes HainaultModern 1, 2 and 3 bedroom apartments for sale, contemporary and sustainably designed, sleek interiors close to shops, parks, schools and transport links
Trinity Park
by Lovell Charlton1, 2 and 3 bedroom new build flats for sale, with open plan living areas, large sash windows, private balconies or terraces and high quality finishes
Square Roots Hendon
by Square Roots ColindaleStudio, 1, 2 and 3 bedroom apartments for sale, each with a private balcony or terrace, modern living spaces and access to parking, electric charging and cycle storage
Barking Riverside
by L&Q Becontree1-3-bed and 2-3-bed duplexes offer bright open-plan living with a fully-fitted kitchen; upper flats have balconies/terraces, ground-floor units private outside space.
87 Blackwall Lane
by Hexagon Housing Association Westcombe Park1, 2 and 3 bedroom new build apartments for sale with modern layouts, open living areas, good natural light, secure entrances and well designed common spaces
New Build Flats and Apartments Under £400,000 in London
The £400,000 budget represents the most active market segment for London flat buyers. In this price category, purchasers can select from modern 1-bedroom and 2-bedroom apartments in well-connected Zone 3 to Zone 5 neighbourhoods, such as Greenwich, Colindale, Walthamstow, Southall, Woolwich, and Wembley.
Properties in this price range qualify for the UK Lifetime ISA (LISA) property price limit of £450,000, allowing purchasers to use their 25% government savings bonus towards their deposit. Newly built flats offer private balconies, landscaped communal podium gardens, secure cycle storage, and energy-efficient heating systems that reduce running costs.
FAQ: New Build Flats Under £400,000 in London
Yes. 2-bedroom new build flats under £400k are available in Outer London regeneration hubs including Barking Riverside, Thamesmead, Croydon, and Hayes, offering open-plan living areas and private outdoor space.
Yes. The UK government Lifetime ISA cap is £450,000. Purchasing a newly built flat under £400,000 allows eligible first-time buyers to apply their accumulated savings and 25% government bonus directly toward their deposit without penalty.
Annual service charges for newly built flats in this segment typically average between £2.50 and £4.00 per square foot, covering building insurance, lift maintenance, communal cleaning, and estate upkeep.
Gross rental yields in the sub-£400k segment range from 5.2% to 6.5%, supported by strong tenant demand from young professionals seeking energy-efficient homes near Elizabeth line and Overground stations.