A team of niche consultants JKA prides itself in the delivery of high-value professional services applying joined-up thinking and attention to detail.


Jonathan Ketteridge Associates Limited has over 30 years experience in quantity surveying and has worked on both residential and retail developments on a variety of scales. The team have provided quantity surveying services on developments over £30 million.

JKA provide services from chartered surveyors who have decades of experience successfully delivering traditional quantity surveying services including:

  • Site appraisal and feasibility studies
  • Cost planning
  • Preparation of tender and contract documents
  • Due diligence reporting to banks and funding organisations
  • Insurance valuations
  • Commercial management
  • Negotiation and settlement of final accounts


Provided by chartered surveyors with post-graduate qualifications in dispute resolution, the consultants JKA provides to manage dispute resolution services have considerable experience of advising on disputes to £250m value in the UK and overseas. Such services include:

  • Initial claim appraisal 
  • Expert witness
  • Claims preparation
  • Claims negotiation
  • Adjudication advocacy


Jonathan Ketteridge Associates Limited delivers the following services through highly experienced chartered surveyors:

  • Obtain a brief from the Employer and develop Employer’s requirement in conjunction with other team members
  • Chair design team meetings
  • Provide procurement advice
  • Preparation of Employer’s requirements
  • Advice on Tendering Procedures 
  • Selection of the Main Contractor
  • Coordinate and manage the on-site Construction Process
  • Administer the Design and Build Contract


The consultants responsible for delivering Construction Management Services are seasoned professionals with experience in both construction consultancy businesses and construction teams.


The team at Jonathan Ketteridge Associates Limited has experience working with clients like Sainsbury’s and Lidl managing large scale projects. JKA provides qualified project managers to deliver the following services:

  • Preparation of project execution plans and development briefs
  • Value Management
  • Risk management 
  • Project monitoring
  • Programme management


JKA call on their many years of experience to provide witness testimony in court cases and tribunals and work to ensure a fair outcome for their clients. 

Jonathan Ketteridge Associates Limited can provide expert witness services from professionals  with masters level qualifications specific to the delivery of expert witness evidence.

Successful Commissions

Quantity Surveying

25,000 sqft Industrial Development, Long Bennington, Nottinghamshire

Providing quantity surveying services including cost planning and design and build procurement including co-ordinating and managing complex agent for lease, concerning payment and negotiating and settling a final account with both tenant and design and build contractor.

Quantum Advice International Budget Retailer 

Providing quantum advice in relation to controversial quantum valuations and assessments of loss and/or expense under bespoke building contract conditions to 42nr stores.

Contract sums circa £3.5m

Project Management

Business Park Infrastructure Development, Kingsway Business Park, Rochdale

Phase one and two Project Management appointment under the New Engineering Contract conditions including contract administration and risk management.

Combined contract sums £12m

Mixed Residential and Retail Development, Sheffield

Providing a full range of quantity surveying and employer’s agency services for the construction of a city centre mixed-use development including the management of rights of lights. Delivered on time, to specifications and budget. 

Dispute Resolution

Retail Development, Wombwell

Providing expert advice and risk management services to facilitate settlement prior to tribunal including: 

  • providing a detailed risk analysis identifying the potential outcomes at adjudication
  • assisting in the negotiating of a mutually acceptable settlement

Sum in dispute £120,000.

Commercial Developments Sheffield and Runcorn

Providing mediation representation services, expert advice and risk management services to facilitate settlement prior to tribunal including: 

  • providing a detailed risk analysis identifying the potential outcomes at adjudication
  • assisting in the negotiating of a mutually acceptable settlement

Sum in dispute £1,200,000.

International Quantity Surveying

200 Hectare Resort Development, North West Unguja, Zanzibar

Procurement advice and quantity surveying services including cost planning and preparation of detailed bills of quantities. 

Assisting in selection of building contractor and negotiation of contract sum with contractor.

Sourcing local surveyor to assist in the delivery of surveying services ongoing. 

Construction Management

Mixed Development, London Road Fire Station, Central Manchester

Providing procurement advice and quantity surveying services on the heritage city centre site adjacent to Piccadilly Station, Manchester developed by Allied London.

Contract Sum £11m

International Dispute Resolution

International Airport, Middle East

Providing expert advice, claims management and expert witness services in relation to disputed final account for high value fitting out works procured using the International FIDIC form of contract. 

Amount at dispute £250m