Parking Survey
Parking is one of the most contentious issues in planning, generating more objections from neighbours and local residents than almost any other matter. A parking survey provides objective evidence about existing parking conditions in the area surrounding a development site, enabling the planning and highway authorities to make informed decisions about whether the proposed parking provision is adequate and whether the development would create unacceptable overspill parking on nearby streets.
Typical Cost
£300 – £5,000+
Turnaround
1 – 6 weeks
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What is a Parking Survey?
A parking survey is a systematic assessment of existing parking demand and availability on streets and in car parks surrounding a development site. It records the number of parked vehicles at specified times of day and night, identifies available parking capacity, and compares existing demand against available supply. The survey data is then used to assess whether a proposed development — particularly one with reduced parking provision — would result in unacceptable parking stress on the surrounding area.
When is a Parking Survey required?
A parking survey is commonly required when a development proposes fewer parking spaces than the local authority's adopted parking standards would suggest, when the site is in an area where on-street parking pressure is already high, or when residents and councillors raise concerns about the impact of development on local parking availability. Parking surveys are frequently requested by highway authorities for urban residential schemes, student accommodation, houses in multiple occupation, and commercial developments where employee parking could affect surrounding streets.
What does a Parking Survey include?
A parking survey report includes a clear definition of the survey area, usually covering all streets within 200 metres of the site, details of the survey methodology including dates, times, and weather conditions, maps showing parking restrictions and available kerbside space, results presented as parking stress percentages (the ratio of parked vehicles to available spaces), analysis of overnight and daytime parking patterns, comparison with the Lambeth methodology threshold of 90 per cent stress (or the locally adopted threshold), and conclusions on whether the surrounding area can absorb any additional parking demand from the proposed development.
How much does a Parking Survey cost?
Parking survey costs depend on the size of the survey area and the number of survey periods required. A basic overnight parking survey covering streets within 200 metres of a site typically costs between £800 and £1,500. A more comprehensive survey including both overnight and daytime beats across multiple days usually costs £1,500 to £3,000. Large survey areas or surveys required over an extended period may cost £3,000 to £5,000.
Who can prepare a Parking Survey?
Parking surveys should be carried out and reported by transport planning consultants with experience of the methodology accepted by the relevant highway authority. The surveyors must be trained to accurately identify and record parking conditions, and the analysis should be carried out by a qualified transport planner. Membership of the Chartered Institution of Highways and Transportation (CIHT) provides assurance of professional competence.
How long does a Parking Survey take?
A parking survey can be planned and conducted within 2 to 3 weeks, with the full report produced within 4 to 6 weeks of commissioning. Surveys must be carried out during representative conditions — not during school holidays, bank holiday periods, or when exceptional events such as roadworks or major sporting events might distort results. The highway authority may reject surveys carried out at unrepresentative times, so scheduling is important.
Frequently Asked Questions
What is parking stress?
Parking stress is the ratio of parked vehicles to available parking spaces, expressed as a percentage. A parking stress of 90 per cent is generally considered the threshold above which it becomes difficult for drivers to find a space within a reasonable distance. Most highway authorities consider stress levels above 85 to 90 per cent as indicating that the area is effectively at parking capacity.
When should parking surveys be carried out?
Overnight surveys should be conducted between midnight and 5am, when residential parking demand is at its peak as most residents are at home. Daytime surveys are typically conducted during working hours to assess commuter and visitor parking. Surveys must be done on weekday nights (Tuesday to Thursday are preferred) during school term time and outside holiday periods. Weekend surveys may also be required for retail or leisure developments.
What is the Lambeth methodology?
The Lambeth methodology is a widely recognised approach to parking surveys originally developed by the London Borough of Lambeth. It involves walking a defined survey area and recording the number of parked vehicles against the number of available legal parking spaces on each street. The methodology is accepted by many highway authorities across England, not just in London, and has become an industry standard for assessing parking stress.
Can I do my own parking survey?
While there is no legal requirement for a professional to conduct a parking survey, highway authorities are unlikely to accept surveys carried out by applicants or their friends due to concerns about accuracy and impartiality. A survey conducted by an independent transport consultant carries far more weight. The methodology must be robust and the data must be presented in a format that the highway authority can scrutinise.
How large should the parking survey area be?
The survey area typically covers all streets within 200 metres walking distance of the development site. Some highway authorities require a larger area of up to 250 or 400 metres, particularly for developments with significant parking shortfalls. The extent of the survey area should be agreed with the highway authority before the survey is conducted to avoid disputes about coverage.
Does a parking survey need to cover controlled parking zones?
Yes. The survey should record all legal parking within the survey area, including spaces within controlled parking zones (CPZs). However, the analysis should recognise that residents of a new development may not be eligible for CPZ permits — many London boroughs and other authorities now operate car-free or permit-free development policies. The distinction between permit holder bays, pay-and-display bays, and unrestricted spaces should be clearly recorded.
What happens if parking stress is already above 90 per cent?
If the survey reveals parking stress above 90 per cent, this indicates the area is already at effective parking capacity. Any development that would add further parking demand — either from residents, visitors, or employees — could face objection from the highway authority unless it provides sufficient on-site parking to meet its own demand. In highly stressed areas, the highway authority may require car-free conditions or insist on full on-site parking provision.
How does a Controlled Parking Zone affect the parking survey?
A CPZ influences both the survey methodology and the interpretation of results. Within a CPZ, the available parking supply for new residents may be limited if the council operates a car-free policy that prevents new developments from obtaining parking permits. The survey should distinguish between spaces available to all users and those restricted to existing permit holders, as this affects whether the development can rely on on-street capacity.
Can a parking survey support a car-free development?
Yes. In areas with good public transport accessibility and high parking stress, a parking survey can actually support a car-free development by demonstrating that on-street parking is not available and that the development must therefore be designed without reliance on car parking. This evidence, combined with the site's accessibility credentials, can justify a zero-parking scheme secured by a car-free planning condition.
How many nights should a parking survey cover?
Most highway authorities require a minimum of two overnight surveys on separate nights, usually Tuesday to Thursday. Some authorities require three or more nights of data to demonstrate consistency. If results vary significantly between nights, additional survey nights may be needed. The dates of surveys should avoid atypical periods such as school holidays, Christmas, or major local events.