Traffic evidence and modelling

Parking stress surveys (Lambeth methodology).

Parking stress surveys to the Lambeth methodology, for HMOs, flats, conversions and car-free schemes where the council wants proof of spare on-street capacity.

Also known as: parking stress survey, Lambeth parking survey, Lambeth methodology, overnight parking survey, parking beat survey, HMO parking survey

What we do

What’s included.

Councils often ask for a parking stress survey where a scheme provides little or no parking, such as HMOs, flat conversions and town-centre homes. The Lambeth methodology is the most widely accepted: overnight counts on two weekday nights within about 200 m walking distance of the site.

  • Survey area agreed with the council
  • Overnight counts on two weekday nights
  • Kerb length and space calculations
  • Parking stress by street and overall
  • Effect of the scheme’s demand
  • A concise survey report
How we approach it

Straightforward, proportionate, agreed early.

Accepted method

The Lambeth methodology, which most councils recognise.

Right nights

Weekday nights outside school holidays, so the results are representative.

Clear conclusions

Stress levels shown street by street, with the scheme’s demand added.

FAQ

Questions we get asked

What is the Lambeth methodology?

A standard approach to parking surveys developed by the London Borough of Lambeth, with overnight counts on two weekday nights within about 200 m walking distance of the site.

What level of parking stress is a problem?

Many councils treat 85% or more as high stress, where finding a space becomes difficult.

Do HMOs need a parking survey?

Often, where the council is concerned about on-street parking. We check before you commission one.

Related

Often needed alongside.

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Last reviewed October 2026 by Ripple Development Planning. Policy and guidance change; for advice on a specific site, send us the details.

Further reading

From our insights.

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