Building Services Consulting Engineers

Experts in Mechanical, Electrical, Lift, Low Carbon Design & Sustainability


Sustainability Consultants

Helping to build a more sustainable future


Low Carbon Design

An integrated approach to sustainable building design

Building Services Consultants

FLATT offer a range of consultancy services including Mechanical, Electrical, Public Health, Lift and Sustainability. Providing long term, low carbon sustainable solutions for modern buildings.

Experienced MEP Consultants and Engineers

Our experienced multi-disciplinary engineering staff comprise of MEP Chartered and Qualified engineers, operating across all market sectors.

Consultancy Services

Building Services Engineering

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Sustainability Consultants

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Low and Zero Carbon Design

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Building Modelling and Simulation

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Building Energy Certification

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Building Services Inspection and Reporting

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Why choose FLATT?

Our Vision: To create a healthy, low carbon environment

To provide a professional building services engineering consultancy, technically excellent, with commercial sustainable solutions for the buildings of tomorrow.

Our Values: Engage. Create. Excel.

To be truly client focused and provide excellent customer service. To be responsive to change, whilst maintaining a sustainable and low carbon design approach to engineering services. To create a rewarding, challenging and valued team environment for our clients and talented employees.




We have employed Flatt on several of projects since 2012 and their service has been exceptional. Their thorough, analytical and creative approach to our projects is highly valued, as is their diligent approach during the construction process and post completion. We hold Flatt in high regard and look forward to continuing our relationship in the future.

Derwent London

Flatt has worked as Consultant Engineers with us over several years on a number of different projects and have always proved supportive, proactive and engaging... we would not hesitate to consider them again in the future.

Workspace Group

We have engaged the services of Flatt throughout a number of our regions and irrespective of the size of project have found them to be totally professional in their approach and delivery of those services and would have no hesitation in recommending them.

Berkeley Homes

Flatt are one of our lead M&E consultants and we value their professional and pragmatic approach to project management and refurbishment work, particularly with the increasing demands and needs of the sustainability agenda.

Threadneedle Property Investments

We have worked closely with Flatt Consulting on a large complex residential project and found them to be proactive, thorough and detailed in their approach. They have always been helpful leading to a very positive team approach. I do not hesitate in recommending Flatt Consulting to our clients.

WCEC Architects

Flatt Consulting are an important part of our office development team because of their proactive, cohesive and cost sensitive approach to systems design and problem solving

Westminster Real Estate

Latest news and articles

Mixed Use Development Scheme at 55-58 Pall Mall Approved

The development scheme will involve the demolition of the existing 55-58 Pall Mall and 1-4 Crown Passage buildings to erect a new building with a retained façade on the Pall Mall elevation. The building comprises of basement, ground and six upper floors, plus mezzanine. This will provide approximately 40,000 sqft…

25th September 2020

Iconic Building in Soho Awarded Planning Permission

The iconic Film House – located on Wardour Street in Soho – is to be refurbished and extended to give the building a new lease of life by providing a mix of B1 office space and A3 retail. Development proposals have been permitted by Westminster City Council. Working on behalf…

5th August 2020

Ground and First Floor Refurbishment of 85 London Wall Complete

The Ground and First Floor refurbishment of 85 London Wall is now complete. This landmark building located in the heart of London city comprises Cat A refurbished, open plan Ground and First floors, a stylish reception, communal roof terrace and commuter facilities.      

24th July 2020

We’re Hiring! – Senior BREEAM Assessor

We are looking for a self-motivated, individual to join our Caterham based office – undertaking Sustainability Assessments as a BRE licensed Assessor. ROLE SCOPE You would manage and deliver projects from Pre-assessment to final certification using the latest BREEAM assessment procedures. Ideally, we require the following qualifications/licences, but still do apply…

19th May 2020

COVID-19 | Business as Usual

A message to our valued clients and business colleagues from our CEO, Simon Flatt.

23rd March 2020

Rossetti Studios Project is Now Complete

Restoration work on the historic Rossetti Studios, located at 72 Flood Street in London, is now complete. Rossetti Studios, built by Edward Holland and dated 1894, was designed specifically to...
17th February 2020

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