Training Example: Bloom Builders – Review the Data, Give Your Score & Compare to the Real AI Evaluation

[H2] Design-led construction with taste and proper execution

We are a construction and project delivery company in Clapham, SW11, specialising in high-quality residential and commercial projects across South West London — Chelsea, Battersea, Clapham, Fulham, Balham, Putney, Tooting and Brixton — and further afield for larger schemes.We work with architects, designers, homeowners and developers to deliver fully managed projects with clear communication, respect for design intent and proper execution on site.Architectural services are available through our sister company, Malone + Pike Architects.

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[H2] Portfolio

[H4] Clapham Manor Street, SW4
Full renovation with ground and first floor extensions and garden room to a victorian terrace.

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[H4] Honeywell Road, SW11
Ground floor rear extension with basement, full house renovation and garden works to a Victorian detached home.

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[H4] Montholme Road, SW11
Ground floor extension, loft conversion, roof terrace and basement to a Victorian terrace.

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[H2] Our Services

[H4] Basements

We design and build high quality residential basements, managing structure, waterproofing, access logistics and neighbours while protecting property value programme.

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[H4] Renovations & Extensions

We deliver period home renovations and extensions combining structural expertise, detailing and clear cost planning to create practical, beautiful spaces.

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[H4] Commercial & Developer

We partner with developers and commercial clients to deliver construction, programmes and consistent quality across refurbishment, fit out and new build.

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[H2] How We Work

We run construction with design literacy and disciplined delivery. Clear communication, coordinated sequencing and a considered finish.Experience • 300+ residential projects delivered by the same senior team • 30+ basements • Whole-house renovations, extensions + joinery-led interiors • Developer + commercial schemesApproach • Protect design intent • Sequence properly • Communicate clearly • Finish wellArchitectural services provided through Malone + Pike Architects for clients wanting a single coordinated route from concept to completion.

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[IMG: Removed chimney breast]

[H2] Project budgets

[H3] Instant quote
Renovation and extension costs depend on multiple factors including scope of works, structural interventions, specification levels and property type. We have developed an early stage construction cost tool based on real London project data to help with feasibility and early budgeting.

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[H2] Contact
[H2] For project enquiries, please get in touch.
We respond to enquiries promptly.300+ residential projects delivered.For tender invitations or architect enquiries, please contact us via the contact form or email.

[H2] About us

[H4] About Bloom Builders
Bloom Builders is a London based construction company specialising in high quality residential renovation, extension and new build construction. We work across London, with a strong focus on period properties across South West London.We deliver construction projects that balance design quality, buildability and long term building performance. Our work typically includes structural renovations, extensions, loft conversions, basements and full house refurbishments, as well as new build construction for private clients and developers.
[H4] Our Approach
We focus on delivering well planned, well managed construction projects that perform properly long after completion. Many of the buildings we work on are older properties that require careful structural sequencing, practical detailing and experienced site management.We prioritise:Clear cost planning from early stagesBuildable design solutionsStrong site management and programme controlConsistent build qualityClear communication throughout constructionMuch of our work comes through referral and repeat clients.
[H4] Design Collaboration
Where projects require architectural design support, we regularly work alongside Malone + Pike Architects. Both companies operate independently, but we collaborate closely where clients want a coordinated design and construction approach.We also work with client appointed architects, interior designers and consultant teams where required.
[H4] What We Deliver
We support projects from early feasibility and cost planning through to full construction delivery, including:Structural renovation and internal reconfigurationHome extensions including side returns and wrap around extensionsLoft conversions and roof alterationsBasement construction and structural groundworksFull house refurbishmentNew build construction
[H4] Construction Led Thinking
Our focus is always on practical construction delivery. We believe good projects are achieved when design ambition is balanced with buildability, cost realism and careful sequencing on site.This approach helps reduce redesign during construction, improve cost certainty and maintain project programme.
[H4] Health, Safety and Compliance
All projects are delivered in accordance with Construction Design and Management Regulations (CDM), with a strong focus on safe site management and quality control throughout construction.
[H4] Our Clients
We work with:Private homeownersResidential developersCommercial property clientsArchitects and design teams
[H4] Working with bloom builders
We aim to build long term relationships with our clients and professional partners. Our goal is to deliver construction projects that improve how buildings perform, function and feel for years to come.If you would like to discuss a project, we are always happy to provide early stage advice on feasibility, cost and construction approach.

[H2] Portfolio

Bloom Builders specialises in the renovation, extension and structural alteration of period homes across South West London. We focus on delivering high quality building work that respects the original character of each property while upgrading it for modern family living.Our projects typically include ground floor extensions, loft conversions, basements and full house refurbishments. We work closely with homeowners, architects and consultants to deliver projects that are carefully detailed, well managed and built to last.Every project shown below is delivered with a focus on build quality, clear communication and realistic cost planning. We understand that most clients are investing significant savings into their homes, and we approach each project with that responsibility in mind.Victorian and Edwardian house renovationsGround floor rear and side return extensionsLoft conversions and roof alterationsBasement construction and structural underpinningFull internal refurbishments and reconfigurationsStructural steel installation and load bearing alterations

[IMG: Hillier Road, Arches]

[H3] Hillier Road, Arches

[IMG: Honeywell Road]

[H3] Honeywell Road

[IMG: Montholme Road]

[H3] Montholme Road

[IMG: Altenburg Gardens]

[H3] Altenburg Gardens

[IMG: Battersea Square]

[H3] Battersea Square

[IMG: Nuthurst Avenue]

[H3] Nuthurst Avenue

[IMG: Belleville Road]

[H3] Belleville Road

[IMG: Dorothy Road]

[H3] Dorothy Road

[IMG: Exhibition Road, SW7]

[H3] Exhibition Road, SW7

[IMG: Warmington Road, SE24]

[H3] Warmington Road, SE24

[IMG: Leighton Gardens, NW10]

[H3] Leighton Gardens, NW10

[IMG: Abbeville Road, SW4]

[H3] Abbeville Road, SW4

[IMG: Bennerley Road, SW11]

[H3] Bennerley Road, SW11

[IMG: Berber road, SW11]

[H3] Berber road, SW11

[IMG: Bridge studios, Wandsworth Bridge Road, SW6]

[H3] Bridge studios, Wandsworth Bridge Road, SW6

[IMG: Clapham Manor Street, SW4, Clapham]

[H3] Clapham Manor Street, SW4, Clapham

[IMG: Donne Place, SW3, Chelsea]

[H3] Donne Place, SW3, Chelsea

[IMG: Fulham Road, SW3]

[H3] Fulham Road, SW3

[IMG: Fullerton Road, SW18]

[H3] Fullerton Road, SW18

[IMG: Hillier Road, SW11]

[H3] Hillier Road, SW11

[IMG: Huron Road, Heaver Estate, SW17]

[H3] Huron Road, Heaver Estate, SW17

[IMG: Japonica Cottage, GU8]

[H3] Japonica Cottage, GU8

[IMG: JGM Gallery, SW11]

[H3] JGM Gallery, SW11

[IMG: Montholme Road Loft, SW11]

[H3] Montholme Road Loft, SW11

[IMG: Oakley Street, SW3]

[H3] Oakley Street, SW3

[IMG: Sulgrave road, W6]

[H3] Sulgrave road, W6

[IMG: Waldemar Road, SW19]

[H3] Waldemar Road, SW19

[IMG: Stockwell Road, SW2]

[H3] Stockwell Road, SW2

[IMG: Rodenhurst Road, SW4]

[H3] Rodenhurst Road, SW4

[H2] Services

We specialise in the construction, renovation and extension of period homes across South West London. From our office in Clapham, SW11, our work includes ground floor extensions, loft conversions, basements, structural alterations and full house refurbishments.We work closely with homeowners, architects and consultants to deliver projects that are carefully planned, well managed and built to last. From early cost advice through to construction delivery, we focus on practical solutions that protect budgets while achieving high quality results.Much of our work comes through referral and repeat clients. We build long term relationships by delivering projects that improve how homes perform, function and feel for years to come.

[H4] Basements

We design and build high quality residential basements, managing structure, waterproofing, access logistics and neighbours while protecting property value.

Learn more →

[H4] Renovations & Extensions

We deliver period home renovations and extensions combining structural expertise, detailing and clear cost planning to create practical, beautiful spaces.

Learn more →

[H4] Commercial & Developer

We partner with developers and commercial clients to deliver construction, programmes and consistent quality across refurbishment, fit out and new build.

Learn more →

[H4] Loft conversions

We design and build loft conversions that maximise space, improve property value and integrate structurally and visually with existing period homes.

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[H4] Side returns

We construct side return extensions that unlock ground floor space, improve light and flow, and integrate seamlessly with original building fabric.

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[H4] wrap Around Extensions

We deliver wrap around extensions that transform layout, improve natural light and create generous family spaces while maintaining structural integrity.

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[H4] architecture

We provide practical, buildable architectural design focused on planning success, cost certainty and construction efficiency across residential and commercial projects.

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[H4] Design and Build

We deliver integrated design and construction, simplifying communication, reducing risk and maintaining cost and programme control from concept through completion.

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[H4] new builds

We construct high quality new homes and buildings, managing programme, cost and construction quality to deliver reliable outcomes for clients and developers.

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[H2] How Much Will My Building Project Cost?

Our instant quote tool provides an early stage budget estimate for construction projects across London, including renovations, extensions, loft conversions, basements and new builds.Enter your project details below to generate a live budget range based on typical London construction costs.Please note that construction costs vary depending on design, structure, site access and specification. This tool is intended for early budgeting guidance only and does not replace a detailed quotation.For most construction projects, we recommend allowing a 10 to 15 percent contingency.If you would like to discuss your results, learn more about our services or arrange a project review, please contact our team.

[H1] Meet the Team

[H4] Ross Malone

Managing Director

Ross Malone has been running design and building companies since 2012 after working in property development since the early 2000’s. He has completed over 200 projects and has won several awards for his work. Ross is a former board member of the Federation of Master Builders. He is also a Director of RIBA chartered practice and sister company, Malone + Pike Architects.

[H4] Carl Pike

Carl Pike is an ARB architect and has been working with Ross Malone since 2017. Carl is also the joint founder of the sister company Malone + Pike Architects. He has a 98.8% planning success rate, specialising in residential planning in the London Boroughs.

Head Architect

[H4] Kris Tombinski Robb

Senior Project Manager

Kris Tombinksi Robb joined the team in 2020 and has been working in high-end property development management in London since 2016. During that time, he has completed over 150 projects. Kris studied Architecture in Vienna, qualifying in 2011, and then remained there for a further 5 years gaining hands-on experience in site and project management.

[H4] Richard Hull

Project Manager

Richard Hull joined the team in 2020 as a project manager and has proved himself to be a much loved and vital part of the team. He is a diligent and dependable project manager with a strong capability for management and an eye for interior design.

[H4] Lydia Green

Marketing, Social and Office Manager

Lydia Green joined the team as Marketing, Social and Office Manager after graduating from Newcastle University. Lydia brings previous experience in social media marketing, digital content creation and web design.