New Build Flats Under £400,000 in London
✅ 80,542 new build flats and apartments under £400,000 across London by 90 developers.✅ Built by leading UK housebuilders. 10-year warranty, private balconies, and modern resident amenities.
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.
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
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 SNG 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
Grahame Park
by Notting Hill Genesis Sales Colindale2-bedroom flats for sale with large private spaces, natural light, green communal courtyards, energy-saving design and easy access to parks, cafes and schools
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
Avondale Drive Estate
by Hillingdon Council Hayes & HarlingtonNew 1, 2, 3 bedroom flats plus 3, 4 bedroom duplexes for sale, with modern layouts, energy efficient design and landscaped communal spaces for residents
Kidbrooke Village
by Berkeley Group Kidbrooke1-bed-4-bed apartments and freehold townhouses with design-led layouts. Some apartment plans mirror a larger freehold house; select units ready to move in.
The Lightworks
by Guinness Partnership South HarrowStudios, 1-bed, 2-bed, 3-bed and maisonettes provide space-efficient, practical layouts, modern standards and some units include private balconies
Hepworth Place
by Countryside Homes Walthamstow Central1 and 2 bedroom apartments for sale with efficient layouts, open plan living, good storage, natural light, balconies in some homes, durable finishes and play areas
Forest Road
by Pocket Living Walthamstow Central90 new 1-bedroom Pocket homes for first time buyers, some wheelchair friendly, some with private terraces, plus communal courtyard garden and rooftop terrace.
St Mary’s Wharf
by Native Land1, 2, 3, 4 and 5 bedroom apartments with open plan layouts, large windows, balconies or terraces, contemporary kitchens and quality bathroom fittings
Great North Leisure Park
by Landsec Finchley Central1, 2 and 3 bedroom apartments available, in a mixed tenure scheme with landscaped courtyards, pedestrian paths, green spaces and a new leisure centre nearby
The Eight Gardens
by Berkeley Group WatfordStudios, 1, 2, 3 bedroom apartments for sale, offering modern layouts with access to landscaped gardens, gym, concierge, business lounge and screening room
SO Resi Westgrove
by Metropolitan Thames Valley Hendon Central1-bedroom and 2-bedroom flats with private balconies, underfloor heating, Bosch kitchens, Silestone worktops, stylish bathrooms, Amtico flooring and bike 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.
Riverside Gardens
by Consero1-bed–3-bed homes 475–1,339 sq ft. Large units offer open-plan kitchen/living/dining. Some include Juliet balconies, terraces, river views and private patios
The Focus Collection at Eastman Village
by Hyde New Homes Harrow & Wealdstone1 and 2 bedroom shared ownership flats with modern layouts, large windows, quality fitted kitchens with integrated appliances and some private outdoor space
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.