Annexe / outbuilding in Peckham
Peckham is London Borough of Southwark's victorian + edwardian terraces (1860-1910) + post-war aylesbury + heygate redevelopment submarket. Peckham Rye Conservation Area covers roughly 1,200 properties around the Common — here Southwark has used an Article 4 Direction to withdraw Permitted Development for front elevation changes, so even replacement front doors or sash windows require a planning application.
What a annexe / outbuilding project looks like here
Peckham Rye Conservation Area covers roughly 1,200 properties around the Common — here Southwark has used an Article 4 Direction to withdraw Permitted Development for front elevation changes, so even replacement front doors or sash windows require a planning application.
Southwark's Core Strategy requires new residential to meet zero-carbon on-site where feasible — for a rear extension over 40 m², this triggers a SAP calc and typically mandates a heat pump rather than a gas boiler replacement, £4,000-£8,000 beyond standard spec.
Many Peckham terraces have original rear yards paved in yellow stock brick — Southwark's Local List protects these as contributing features, so a rear extension over 25 m² must preserve the brick pattern on the retained yard, an unusually specific design constraint.
Garden annexes, ancillary outbuildings and granny annexes — Permitted Development under Class E where the borough hasn't issued an Article 4 Direction; planning consent otherwise. In Peckham specifically, victorian + edwardian terraces (1860-1910) + post-war aylesbury + heygate redevelopment stock means annexe / outbuilding scope is shaped by the neighborhood's dominant construction typology. Baily's London scoping flow factors peckham rye conservation area and southwark article 4 direction on hmos into the estimate before a contractor is involved.
Start your Peckham scope — Baily asks the right questions.
Pre-seeded for annexe / outbuilding in Peckham. Mention your 90-210 m² (970-2,260 sqft), your timeline, and any known constraints — Baily factors the southwark council planning + building control review queue into the scope.
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Who is Baily?
Baily is named after Francis Baily — an English stockbroker who retired at 51, became an astronomer, and in 1836 described something on the edge of a solar eclipse that nobody had properly articulated before: a string of bright beads of sunlight breaking through the valleys along the moon’s rim.
He wasn’t the first to see them. Edmond Halley saw them in 1715 and barely noticed. Baily’s contribution was clarity — describing exactly what was happening, in plain language, so vividly that the whole field of astronomy paid attention. The phenomenon is still called Baily’s beads.
That’s what we wanted our AI to do. Every inbound call and text has signal in it — a homeowner’s real question, a timeline, a budget, a hesitation that means “yes but.” Baily listens to every one, 24/7, and finds the beads of light.
Baily was a businessman before he was a scientist. That’s our vibe too.
Questions LA homeowners actually ask
Peckham annexe / outbuilding projects typically run $95K–$285K. Peckham's victorian + edwardian terraces (1860-1910) + post-war aylesbury + heygate redevelopment stock, combined with peckham rye conservation area, puts most mid-complexity projects in the $190K range. Baily scopes the exact band once you describe the work.
Nearest neighborhoods
Same service, adjacent London submarkets.