Senior Planner and Principal Planner are the two most common mid-career job titles in UK planning, and the line between them isn't always clear. Some councils use a "career grade" that runs from one to the other. Some consultancies advertise "Senior or Principal" and decide the title at offer stage. This guide sets out the real differences in work and pay, using the adverts live on PLANNINGJOBS.COM on 23 October 2026.
The short answer
A Senior Planner handles more complex work with less supervision. A Principal Planner takes the largest or most sensitive work, leads on it, and usually supervises or mentors others. In pay terms, our salary guide puts a typical Senior Planner on £40,000 to £55,000 and a Principal on £47,000 to £66,000, with developers and housebuilders paying more than consultancies at both levels.
| Level | Consultanciesancy £k | Developers and housebuildersDeveloper £k | Councils and public bodiesCouncil £k |
|---|---|---|---|
| Graduate / Assistant Planner | £26k–£32k26–32 | £29k–£35k29–35 | £28k–£34k28–34 |
| Planner / Planning Officer | £32k–£40k32–40 | £35k–£44k35–44 | £35k–£42k35–42 |
| Senior Planner | £40k–£50k40–50 | £44k–£55k44–55 | £41k–£49k41–49 |
| Principal Planner | £50k–£60k50–60 | £55k–£66k55–66 | £47k–£56k47–56 |
| Team Leader | £52k–£62k52–62 | £57k–£68k57–68 | £51k–£60k51–60 |
| Planning Manager / Head of Planning | £52k–£64k52–64 | £57k–£70k57–70 | £55k–£66k55–66 |
| Associate | £60k–£75k60–75 | £66k–£83k66–83 | £58k–£70k58–70 |
| Associate Director | £72k–£95k72–95 | £79k–£105k79–105 | £65k–£85k65–85 |
| Director | £85k–£130k85–130 | £94k–£143k94–143 | £75k–£110k75–110 |
London roles typically pay around 9% more. Client-side roles often carry a car allowance and bonus on top, and can go well above these bands for the right person. Built from the planning jobs advertised on PLANNINGJOBS.COM and what employers tell us they pay. Advertised figures on their own run lower, because most consultancy adverts say "Competitive" and the salaries that are published are mostly council grades.
What the work looks like
| Senior Planner / Senior Planning Officer | Principal Planner / Principal Planning Officer | |
|---|---|---|
| Casework | Larger minor applications and some majors, often with support | Major and strategic applications, often the most contentious |
| Independence | Works with limited supervision and signs off much of their own work | Works independently and is the team's point of reference on difficult cases |
| Committee and appeals | Writes committee reports and handles written representations appeals | Presents to committee regularly and leads at hearings and inquiries |
| People | May check the work of Planning Officers | Often supervises or mentors officers; may deputise for a team leader |
| Consultancy equivalent | Runs smaller projects and parts of bigger ones | Runs projects end to end and manages client relationships |
| Chartered status | Often expected or in progress | Usually required |
In planning policy teams the pattern is similar. A Senior Policy Officer drafts policies and evidence. A Principal leads on a topic or a whole stage of the local plan and is likely to appear at examination.
What the live adverts pay
On 23 October 2026, ten Senior and Principal adverts on PLANNINGJOBS.COM stated a single-level salary range. Adverts covering several levels at once, or giving no figure, are left out.
| Role | Employer type | Advertised salary |
|---|---|---|
| Senior Planning Policy Officer | Council, Yorkshire and the Humber | £36,363 to £39,152 |
| Senior Planning Officer | Council, South East | £35,412 to £44,075, plus a 10% market supplement |
| Senior Planner | Consultancy, East Midlands | £35,000 to £45,000 |
| Senior Planning Officer (Policy) | Council, West Midlands | £46,579 to £49,817 |
| Principal Planning Policy Officer | Council, South East | £47,665 to £51,928 |
| Principal Planning Officer | Council, East of England | £48,111 to £54,778 |
| Principal Planning Policy Officer | Council, East Midlands | £51,224 to £54,605 |
| Principal Planning Policy Officer | Council, London | £52,194 to £57,402 |
| Principal CIL and S106 Infrastructure Officer | Council, London | £52,194 to £58,461 |
| Principal Planning Officer (Majors) | Council, South East | £59,505 to £62,559 |
Taking the midpoint of each advert, the four Senior roles have a median of about £40,000 and the six Principal roles a median of about £54,000. Most of these are council posts: few consultancy adverts state a salary, so these figures sit at the lower end of our salary guide.
Three points stand out. First, there is overlap: the best-paid Senior advert pays more than the lowest Principal one. Location and the size of the authority matter as much as the title. Second, market supplements are common where councils struggle to fill posts, so check for them. Third, most Senior and Principal adverts from consultancies say "competitive" rather than giving a figure, which is why council adverts dominate this table.
Career grades and combined adverts
Several live adverts cover both levels. One council advertises a Senior and Principal career grade at £41,771 to £45,091. A consultancy advertises Senior, Principal or Associate roles at £40,000 to £75,000 depending on experience. Career grades let you move up without reapplying, usually once you meet set criteria such as chartership and a track record on major applications. If you're applying for one, ask what the criteria are and how long progression typically takes.
How to move from Senior to Principal
- Get chartered. Most Principal adverts ask for MRTPI or eligibility for it. See our guide to becoming a town planner for the routes.
- Take on the hardest cases you can. A track record on major or contentious applications is the clearest evidence of readiness.
- Get in front of committee and inspectors. Presenting and defending decisions is a core Principal skill.
- Supervise someone. Even informal mentoring of a Planning Officer gives you examples for interview.
- Consider a move. Many planners step up by changing employer, or by moving between council and consultancy work.
What employers look for in a Principal applicant
Principal adverts on PLANNINGJOBS.COM tend to ask for the same handful of things: chartered membership, a track record on major or complex applications or a lead role on local plan work, experience at committee and appeal, and the ability to guide less experienced colleagues. Strong applications show each of these with a specific example: the scheme, your role, the outcome. If you're a Senior Planner applying for your first Principal role, focus on the cases where you led rather than supported, and be clear about what you'd need to learn.
Frequently asked questions
Is a Principal Planner a manager?
Not always. Many Principal roles involve supervising or mentoring, but line management usually sits with a Team Leader or Planning Manager. Check the job description.
How long does it take to go from Senior to Principal?
It varies widely. Two to four years at Senior level is common, but it depends on the work you get, chartership and the opportunities available.
Do consultancies use the same titles?
Mostly, yes, with Associate and Associate Director above Principal. Consultancy pay ranges are wider and often include a bonus, but fewer adverts publish a figure.
How reliable are these salary figures?
They come from a small number of live adverts on one day, so treat them as a snapshot, not a survey. We update the figures each month in the market report.
See live Senior Planner jobs and Principal Planner jobs.