Conservation architects London​

How Different London Councils Treat Conservation Homes

No two conservation projects – or councils – are the same, and that’s exactly where our experience really matters.

In London, conservation rules change noticeably as you move from one borough to another. In areas covered by Kensington & Chelsea’s conservation policies, even quite modest changes can be shaped by Article 4 Directions, design codes and conservation‑area appraisals.

Richmond takes a similarly structured approach, and we routinely look at Richmond’s house‑extension and alterations guidance before sketching anything ambitious, especially on Victorian terraces near the river.

Other boroughs may have fewer documents, but they still apply their Local Plans and conservation guidance when deciding how far you can go with extensions, dormers and basements.

Why Some Boroughs Are Stricter Than Others

Some councils are guardians of exceptionally sensitive historic townscapes, and their policies reflect that.

We’ve learned the hard way that what feels like a modest extension in one place can be seen as overdevelopment in another.

In practice, Kensington & Chelsea’s planning guidance and Richmond’s conservation documents are among the strictest in London when it comes to visible change in conservation areas, especially around façades, roofs and basements. Camden,

Hammersmith & Fulham and Royal Greenwich often take a similar line, guided by their own appraisals and management plans, even if the wording of their policies is slightly different.

Other boroughs, with more mixed housing stock and lighter guidance, still protect character but can be more open to thoughtful contemporary moves, provided the street still reads as a coherent whole.

Teddy Laurence’s Experience With Conservation Architecture Across London Councils

For more than 10 years, our lead architect Teddy Laurence has been immersed in London conservation architecture – sitting at kitchen tables in Victorian terraces in Richmond near the river, or talking through basement ideas under stucco townhouses in Kensington.

Over that decade he has taken projects through stricter regimes shaped by Kensington & Chelsea’s heritage and conservation team and Richmond’s detailed SPDs, as well as through the conservation frameworks used by Camden,

Hammersmith & Fulham and Royal Greenwich. That judgment about how far to push each idea comes from a decade of negotiating with different planning officers, absorbing their feedback over countless emails and committee reports, and seeing which schemes actually get consent on the ground.

We’ve seen full‑width rear extensions trimmed back, roof dormers reshaped and generous panes of glazing politely refused to preserve calm rear elevations and consistent rooflines. Those are the kinds of lessons you only really learn by going through real projects, not just reading policy PDFs.

Navigating Rules in Kensington & Chelsea, Camden, Richmond and Beyond

In Kensington & Chelsea’s conservation areas, Article 4 Directions and conservation‑area appraisals sit alongside detailed Local Plan policies, so almost any visible change has to preserve or enhance the character of the street.

Their own guidance makes it clear that some permitted development rights are restricted, particularly for front elevations, roofs and features that define the area’s character.

In Richmond, the adopted House Extensions and External Alterations SPD sets tight expectations on scale, materials and detailing, and it points applicants towards separate good‑practice guides for basements and other sensitive works.

Royal Greenwich’s conservation documents and management plans play a similar role, especially around historic areas close to Maritime Greenwich. Camden and Hammersmith & Fulham also rely on their conservation‑area appraisals and SPDs to resist extensions or alterations that dominate original roofs, harm the rhythm of rear elevations or cut into historic fabric.

In other boroughs, the written rules might look less prescriptive, but planning officers still apply the same core test: does the proposal respect the character of the building and its setting?

Tailoring Your Design Strategy to Each Council

Because one word – “conservation” – hides so many local differences, Teddy always starts by checking your exact conservation status, the right SPDs and any Article 4 Directions before he sketches a single option.

In stricter boroughs, that often means a lighter touch: modest rear additions tucked behind the original building line, brickwork and joinery that genuinely feel like they’ve always been there, and internal re‑planning that transforms how you live without shouting about it from the street.

In more flexible boroughs, there can be room for bolder glazing to the garden, a clearer contrast between old and new, or slightly deeper extensions – always judged against the rhythm of the terrace and what we know that council has already accepted.

So when you talk to us about a conservation home, you’re not getting a vague “it depends on the council” answer.

You’re getting 10+ years of London‑specific conservation experience, shaped by real decisions on real houses, and a design approach tuned to your street, your council and the way you actually want to live day to day.