What to know before starting your project in London or the Home Counties.
Planning regulations can feel opaque from the outside, they're full of policies, acronyms, and decisions that don’t always seem predictable. To bring some clarity, we sat down with a London architect, our very own Project Director, Katerina, to talk through how planning really works in London and the Home Counties, why and how councils differ and what homeowners should understand before starting their project.
Whether you’re planning an extension, redesign, or a full new build, here’s a simple breakdown of what actually influences planning outcomes from Katerina’s expert insight.
1. National Policy vs Local Policy: The Two Layers You Need to Understand
One key insight from Katerina is that planning operates on two levels:
National policy
This applies everywhere in England.
It sets out the broad rules around development, design, sustainability and impact.
Local policy
Every borough or district has its own interpretation of these rules.
This is where differences emerge.
Local policy influences:
- how strict a council is
- what materials they favour
- expectations around appearance
- sustainability requirements
- heritage considerations
- how they interpret design quality
It’s why something approved in Hackney might be questioned in Kensington and why Home Counties applications often feel different from London boroughs.
2. Why Some Councils Are Stricter Than Others
According to Katerina, strictness is usually tied to historic context.
Councils with:
- more conservation areas
- more listed buildings
- more architecturally valuable streets
… are often the most demanding.
Examples:
-
Central London boroughs tend to be stricter because of their heritage significance.
-
Areas with a strong architectural identity (like parts of St. Albans) have tighter visual and material controls.
-
Hackney, interestingly, is known for valuing good quality design, not necessarily stricter, but more design-sensitive and innovative.
Local tradition and planning culture also play a role. Some councils simply have a reputation for being more supportive of contemporary design than others.
3. The Impact of Neighbours, Objections and “Affluent Areas”
This is one of the lesser-discussed but most influential realities of planning in London.
Katerina elaborated:
- In many affluent areas, neighbours can object frequently and with strong organisation. This can push applications into committee hearings. Committee decisions tend to become more political and less design-led. Even compliant designs can be delayed simply due to the level of local engagement.
This means that the context of your street and the culture of your neighbourhood can be as important as your drawings.
4. Conservation Areas vs. Normal Streets: A Different Experience
If your home sits in a conservation area, expect:
- more emphasis on materials
- tighter control on rooflines and extensions
- scrutiny of scale, massing and glazing
- attention to street character and heritage features
Even if your home isn’t listed, the area can shape decisions.
In conservation-heavy locations, planning officers will ask:
- Does the design fit the rhythm of the street?
- Does it preserve important features?
- Is contemporary design handled sensitively?
- This doesn’t mean modern architecture is off-limits but only that it needs a clear and thoughtful narrative.
5. The Biggest Misunderstanding: “All Councils Work the Same Way”
They don’t.
Katerina emphasises that despite shared national rules, each council has:
- different local priorities
- different design expectations
- different interpretations of heritage
- different SPDs (Supplementary Planning Documents)
- different thresholds for what counts as “acceptable development”
Planning teams also vary:
- some are flooded with applications
- some are more design-driven
- some are under-resourced
- some take a more conservative approach
For this reason, choosing an architect experienced in your area or at least with similar councils makes a meaningful difference.
6. Why Good Design Still Wins
While councils vary, one thing is consistent:
Good design, backed by a clear rationale, travels well.
Strong applications tend to include:
- a clear design story
- careful attention to neighbours
- sensitivity to local fabric
- sustainability measures
- material choices that feel contextual
- drawings that communicate intent clearly
Planning officers respond well to thorough, thoughtful proposals that understand the rules rather than fight them.
7. What Matters Most for Homeowners in London & the Home Counties
Here is Katerina’s distilled advice for anyone embarking on a project requiring planning permission:
Look beyond the design and understand context.
Your street, your neighbours, your borough, and its history all influence the outcome.
Choose an architect with relevant experience.
They don’t need to live locally but they need to understand local policy.
Expect variations across councils.
Don’t assume what was approved for a friend will be approved for you.
Heritage areas require more narrative.
If you’re in a conservation area, your application will be more detail-oriented.
Objections don’t equal rejection.
But they can delay things, especially in more affluent areas.
Planning decisions can be political.
Committees can shift outcomes that would otherwise pass at officer level.
Good design still carries weight.
A thoughtful, well-communicated proposal has a much higher chance of approval.
Planning permission is never simply a tick-box exercise. It’s a blend of policy, local history, neighbourhood culture and design quality. And, navigating all of this takes understanding, patience, and a careful hand.
Speaking with Katerina made one thing clear:
With the right insight, planning becomes far less overwhelming and far more predictable.
If you’re starting a project in London or the Home Counties and want guidance through the planning landscape, our team would be happy to help.