About Us

Call Us on 020 8366 5000 to see how we can help you

We are private practice of chartered building surveyors specialising in a wide range of building surveying matters serving clients ranging from homeowners to large scale developers. Please review our ‘who we help’ and ‘how we help’ sections for more detail. MSA was established in 1997 and has 5 members of staff with over 60 years’ experience in property related matters.

We are strategically located in North London to enable us to promptly serve our clients extending from central London down to the southern coastline and up to the Midlands. Please see our map below for a sample of some of the areas we have worked in.

The MSA client base is diverse and its growth has been principally based on recommendations from existing clients and consultants - a fact that we are very proud of. We strive to provide every client with the highest level of service, professionalism and expert advice. Upholding a trustworthy reputation is of paramount importance to us and we pride ourselves on being our clients’ first port of call when difficult situations arise.

As the firm is regulated by the Royal Institution of Chartered Surveyors we have a strict code of conduct and professional ethics to follow. We have professional indemnity insurance with extensive cover and access to an independent third party redress scheme for all our clients.

Our staff also have memberships to a number of relevant organisations such as the Chartered Association of Building Engineers, the Chartered Institute of Building, the Faculty of Party Wall Surveyors, the Association of Project Safety, the Pyramus and Thisbe Club and more.

We are only too aware of the cost implications of seeking professional advice and will always endeavour to customise our service to provide a practical and economical solution to any problem.

Please feel free to contact us for free and impartial advice on your specific issues and requirements.


We are seasonally look to grow our team with passionate, talented and enthusiastic surveyors and administrators. We offer apprenticeships, APC graduate roles and roles to more established surveyors. If you are interested in joining our team please contact us at mail@martinsurveying.co.uk to see if any vacancies are available.

Our Team


MSA was set up by Mr Ian Martin MRICS MCABE RMaPS in 1997. Ian has extensive experience in property and construction related matters having first started in estate agency and property portfolio management, before moving on to property development and construction and then specialising in building surveying related matters. Ian has worked on a variety of complex instructions over the years involving the Lee Valley White Water Centre host of the 2012 Olympics, Lord’s Cricket Ground, Emirates Football Stadium and the new Tottenham Hotspurs Stadium. Ian has acted as Expert Witness on behalf of the Crown Prosecution Service and was also involved in recent high profile Party Wall Matter acting for the adjoining owner in the case of Lea Valley Developments Ltd v Derbyshire: TCC 16 Jun 2017.


Mr Vernon Siva MRICS MCABE ICIOB MFPWS joined the firm in 2008 previously from an economics background and became a chartered surveyor and a qualified member of various organisations, achieving a Distinction from the University of Reading. Vernon enjoys neighbourly related matters and project management with a keen interest in basements, piling works, and large excavations sites. He has built working relationships with a variety of architects, design and build companies and project managers, working closely with them and their clients to help deliver projects. Vernon has worked on a variety of instructions including high net worth with properties worth in excess of £30 million, high street retailers such as KFC and various local authorities.

Mr William Bracken BSc (Hons) MFPWS

Mr William Bracken BSc (Hons) MFPWS joined MSA in 2017 as a graduate surveyor having achieved a First Class Honours degree from the University of Westminster. He is currently working towards his Assessment of Professional Competence to become a qualified chartered surveyor. William became a member of the Faculty of Party Wall Surveyors in 2018. William has worked on a variety of party wall matters, boundary surveys, specifications, damp surveys and insurance claims. William enjoys being part of a team that is able to provide a number of services, assisting him in the completion of his APC.

Mr Rhys Obasi BSc (Hons) MFPWS

Mr Rhys Obasi BSc(Hons) MFPWS joined MSA as an apprentice in 2015 and became a member of the Faculty of Party Wall Surveyors in 2016. Rhys then went on to achieve a First Class Honours degree from the University College of Estate Management in 2021 and is now working towards his Assessment of Professional Competence to become a qualified chartered surveyor. Rhys has worked on a variety of party wall matters, boundary disputes and building pathology inspections and has undertaken hundreds of schedules of condition. In his spare time Rhys enjoys keeping fit, reading and travelling.

Mrs Toni Kalli

Mrs Toni Kalli joined MSA in May 2013 as an Administrator/PA bringing extensive professional office experience from her varied working career. Toni is responsible for producing our reports and correspondence, diary management, ensuring the smooth running of the office and is the first point of contact for our clients on the telephone. She enjoys theatre visits, outings and being with family.

Looking for a professional team to handle your surveying needs?

Our staff are members of a range of relevant organisations



We recently worked with Vernon, of MSA, on two of our residential projects to facilitate the party wall awards for each project.
Vernon was extremely helpful and efficient throughout the process, providing us with reliable advice that would create the best outcome for both our clients and their neighbours.
One of the projects had multiple party wall awards to agree, being a difficult backland site in central London, and Vernon made the process seem seamless.
We will definitely work with MSA again following our experience on the last two projects – thanks for all your hard work!’

Edgley Design


We require the services of Party Wall Surveyors for the majority of our projects and consistently use Vernon Siva of MSA. We have been working with them for many years, and never hesitate to recommend their services to all our clients who have been consistently pleased with MSA services.

Ms White - Meilssa White Architects

North London

I used Vernon and his company MSA to obtain party wall notices for a loft conversion. It was a very tricky situation with the neighbouring house due to it being vacant and the owner having sadly passed away. Vernon helped me through this process and was very professional throughout. In the end it required a party wall award, and this was conducted in a timely and professional manner. I would recommend Vernon for any work relating to this.

Mr Moore


Could I give a massive thank you to MSA and Vernon Siva in particular, who guided us through a protracted and technically complex issue with a build next door over a period of five years. Vernon was very proactive and was always available to talk us through the various issues connected with party walls and foundations in clear, easy to understand terms. In the end we achieved a solution with which everyone was happy and I am not sure that this would have been the outcome had Vernon not been assigned our case. We are very grateful!
The Party Wall process can appear daunting to many homeowners but Vernon and his team
make it straightforward, simple and achievable without stress. Their approach is friendly,
pro-active and always problem solve whilst maintaining good relations all around. I’m very
happy to recommend their services.

Mr Shaw


MSA have been very helpful and professional, every time I have called you were available and your advice was concise, to the point, very clearly and well explained (even to a layman like me) and the entire process was conducted very well and quickly.

Mr Constantinescu


Ian Martin provided me with sound; independent and professional advice on which I am now progressing. It has taken such a burden off me and my husband and Ian Martin despite his busy work schedule has made himself available and taken the time and effort to appropriately advise me so that we can move forward and finally enjoy our home.

Mrs Ward


I worked with MSA for a Party Wall Agreement with our neighbours, to build a side return extension.  This involved multiple agreements, including freehold, individual house owner and housing association agreements.  
From the beginning, MSA were professional, thorough and clear on process. For example, MSA quickly established the requirements and the introductory letter set out all the possible scenarios and their associated timescales and costs.  I was able to proceed without ambiguity, and engage smoothly with the other professionals, such as the Engineer and Architect.

During the process, MSA showed excellent technical and professional skills, including dealing with some very demanding neighbours.  They were very rigorous and discerning, and crucially were able to negotiate effectively with the adjoining house owners' surveyor to achieve the multiple party wall agreements as we needed.

I would like to thank them for their work, and it was fantastic to work with a team who were outstanding professionally and technically.

Mrs Mellor

Finsbury Park

I am writing to express my appreciation of the high degree of professionalism, timeliness, empathy and due regard demonstrated by you and your colleagues throughout this matter. I feel much reassured (and equally informed) as a consequence of your Company’s involvement on my behalf.

Mr Beckford

Waltham Cross

The whole process from start to finish was handled with great care, efficiency and professionalism. MSA ensured we were kept informed at all times and was always available to answer queries and provide support - a first class personal service!

Mr King


Professional, knowledgeable, calm, comforting and with a lovely  warm sense of humour, Vernon Siva is the most wonderful Party Wall Surveyor (and Party Wall Therapist!)

My advice is (1) Don’t take a short cut on not securing a Party Wall Surveyor – the investment will be worth every penny (2) Choose Vernon Siva as your Party Wall Surveyor – even my builder and the neighbours were impressed with his approach.  He is that rare combination of a wonderful listener – someone who understands – and a professional guide who is also willing to talk to the builder/neighbour etc too on your behalf.  He and his colleague Will also did a thorough schedule of condition and offered to be there not just for the duration of the build, but also further down the line should there be any questions. 

I feel I am in the safest hands and could not recommend him more highly.

Ms Pride


We appointed Vernon Siva from Martin Surveying Associates as our Party Wall Surveyor when rebuilding and extending the conservatory at our house, and thought that he did an excellent job for us.  Vernon was very thorough, professional, well informed and consistent in his advice to us throughout the construction of our new party wall.  He helped us to successfully put party wall agreements in place with both of our neighbours, and he did an excellent job in guiding our builders through the construction of the new party wall along the boundary line, ensuring correct alignment and visiting the site numerous times to ensure the job was done properly.  He also remained in communication with us throughout the building process, and we felt confident in his advice at all times.  It was a genuine pleasure to have Vernon as our party wall surveyor in our building works and would therefore highly recommend him without reservation.

Ms Turner


We cannot thank Ian at Martin Surveying enough for all their help with our Party Wall agreement.  We were absolutely clueless about the procedure and found it all rather daunting.  Ian guided us through with great ease and confidence. Their approach and 100% commitment and professionalism saw us through.  Would highly recommend!!

Mr Casserly & Ms Ellis


I recently required the services of a party wall surveyor in order to construct a basement. On the recommendation of a friend I was put in touch with Martin Surveying Associates, the party wall agreements were awarded relatively quickly and very efficiently at a reasonable cost. Vernon Siva was very professional and I can highly recommend the services of Martin Surveying Associates.

Mr Iszatt


We recently engaged MSA to undertake the building survey of the party walls of our house. MSA have been very thorough and efficient, so much so that you discovered that one wall was in fact solely ours. I would definitely recommend their services to others.

Mr & Mrs Knight


Contacted Martin Surveying Associates for party wall agreement advice, helped me work out the correct path based on the work being done. Report was prepared quickly, excellent service and won't hesitate to use again.

Mr Jennings -

Bush Hill Park

As a design and build company specialising in residential loft conversions, we frequently require the services of a party wall surveyor. We have recommended MSA to our clients for many years, who have always been pleased with the high level of service provided. MSA provide a breadth of expertise that has helped overcome obstacles for our clients and projects and we would happily recommend them.

Mr Mead – Valley Loft Conversions


Vernon Siva and his team at MSA have been a pleasure to work with. They have been expert at navigating a complex set of agreements, with excellent communication with all parties allowing this process to go smoothly for all involved. We wouldn’t hesitate to use them again and would definitely recommend the firm to others.

Mrs Alexander

Shepherds Bush

I want to express my gratitude to Vernon, who dealt with the party wall notices and agreements required for our loft conversion. We were under a very tight schedule and Vernon kindly and professionally worked around our timings to have everything ready by the deadline in a most seamless process. On the way, he also found means to improve the structure of the construction to the benefit of both neighbours and us. It will all look better because of him!

Mr Otero & Ms Dias

East Finchley

MSA came highly recommended to us from a friend who had used them before. Mr Siva was extremely helpful and knowledgeable. He was able to effectively sort our party wall award. We are very happy with how he handled all the challenges involved in the process. We highly recommend him

Mr & Mrs Armstrong

Caledonian Road

I recently contacted MSA on behalf of my elderly parents who don’t speak great English. Vernon and the team gave amazing service, they were very prompt, caring and professional in the service they provided. I could not recommend them highly enough or been more satisfied and pleased with the service they provided.

Mrs Dwyer


We required a party wall agreement for our rear extension and loft conversion. This was our first time going through such a process and Vernon from MSA was hugely helpful in guiding us and helping to answer our questions. Thanks to Vernon the party wall awards were done in a timely manner and served with plenty of notice before work began. We thank Vernon for all his support and would recommend Vernon from MSA for any work related to this.

Mr Bainbridge & Ms Mahgoub


Working with Vernon, I have found him to be extremely professional and efficient. He has identified areas needing to be specifically addressed to mitigate potential issues down the road and ensured resolutions with consensus (where possible) have been sought. Vernon has shared his knowledge and options throughout the processes working with the architects to get amendments pushed through and as such has taken a lot of the stress out of the situation has he has driven the process and engaged me as and when required.

Ms Livanos


Vernon was very proactive and informative when looking at the properties and arranging the party wall award. I would definitely use the team again.

Miss Temple


I was recommended Martin Surveying by a tradesman who I respect. I ended up very grateful for the introduction.
Vernon responded very quickly and visited on site for me within a very short time. He then swiftly returned to do an appraisal for a full report. The report was then delivered in days and comprehensively covered the issues it needed to address. All of this happened in less than 3 weeks - I never needed to chase and the professional fees were both as estimated and reasonable.

Mr Kennedy

Muswell Hill



Party Wall Matters. Building Owner’s Surveyor.

Service of Notices, Party wall Awards and Schedule of Condition inspections for demolition of existing house and construction of new contemporary styled house with basement to footprint and deep excavation works to boundary affecting three adjoining owners.

Find Out More


Party Wall Matters. Building Owner’s Surveyor.

Service of Notices, Party wall Awards and Schedule of Condition inspections for large basement to footprint of existing building with front and rear lightwells and two storey extension affecting two adjoining owners with security of expenses.

Find Out More

Enfield Chase

Insurance Claims, Building Pathology, Project Management, Design Services, Party Wall Matters.

Full management of insurance claim including determining cause of movement, monitoring and investigations, liaising with insurer, project managing full scope of works including planning and building control design, contractor selection, contract administration for demolition, piled foundation scheme and reconstruction of house.

Find Out More


Project Management.

Preparation of specifications, tendering, contractor selection, contract administration and supervision of works for external refurbishment of front and rear elevations on behalf of shared freeholders including redecoration, masonry works, window repairs, roofing, rainwater goods and balconies.

Find Out More


Party Wall Matters. Building Owner’s Surveyor.

Service of Notices, Party wall Awards and Schedule of Condition inspections for demolition of existing house and construction of new contemporary styled house with retaining walls to boundary affecting a number of adjoining owners.

Find Out More


Party Wall Matters. Building Owner’s Surveyor.

Service of Notices, Party wall Awards and Schedule of Condition inspections for redevelopment of public house into accommodation units including, loft conversion, basement and new build mews house with works carried out in programmed phases affecting a variety of adjoining owners.

Find Out More


Measured Survey.

Measured survey and production of CAD drawings of existing pans and elevations for use by architects for proposed redevelopment/structural alterations.

Find Out More

Palmers Green

Commercial Schedule of Condition for Lease. Bespoke Services.

Schedule of Condition survey and report for Citizens Advice Bureau prior to taking on a new lease at a retail unit with advice on various items requiring further investigation and negotiation with Landlord.

Find Out More

Muswell Hill

Party Wall Matters. Adjoining Owner’s Surveyor. Bespoke Services.

MSA were brought in after damage occurred to the adjoining owner’s property. Ian Martin acted as the adjoining owner’s surveyor and dealt with the adjoining owners initial losses including loss of rent. The properties were inspected and monitored with the appointed surveyors agreeing that the adjoining owner’s building would have to be demolished and rebuilt. The matter was referred to the Third Surveyor and High Court (Technology and Construction Court) with a number of important legal issues raised in the judgements. Please refer to our News & Resources page for a link to the judgements.

Find Out More

Kings Cross

Party Wall Matters. Building Owner’s Surveyor.

Service of Notices, Party wall Awards and Schedule of Condition inspections for complex conversion of existing retail unit into restaurant including large basement to footprint of building with sequential underpinning, reinforced foundations, temporary works and steelwork. Service included arrangement of security of expenses, movement monitoring, frequent liaison with advising engineers and project team, affecting seven adjoining owners.

Find Out More


Party Wall Matters. Adjoining Owner’s Surveyor. Bespoke Services.

Party wall Awards and Schedule of Condition inspections for refurbishment works. Also acted as adjoining owners agent in relation to quantifying and obtaining compensation for damages from basement works carried out prior to our involvement including assisting in instruction of barrister for enforcement of Award.

Find Out More


Party Wall Matters. Building Owner’s Surveyor. Agreed Surveyor

Service of Notices, Party wall Awards and Schedule of Condition inspections for construction of new storey to third floor with mansard roof affecting three adjoining owners.

Find Out More


Scaffold Licence. Party Wall Matters. Building Owner’s Surveyor. Agreed Surveyor.

Service of Notices, Party wall Awards and Schedule of Condition inspections for construction of loft conversion to first floor flat. Negotiating Licence for scaffolding on adjoining owner’s land.

Find Out More

Call Us on 020 8366 5000 to see how we can help you