Walk down Charlwood Road on any morning and you understand immediately why it has a conservation area. The semi-detached Victorian villas sit in pairs, separated by open gaps that let you see through to the gardens beyond. It has, as the council’s own planning document puts it, “an almost rural feel.” The gaps are the point.
Number 34 is one of those villas. Three storeys, yellow brick, locally listed since 1983, part of a group of four matching houses at 34 to 40 that have stood unaltered from the street since Henry Scarth built them sometime between 1830 and 1860. The gap between number 34 and its neighbour at number 32 is currently open and undeveloped.
A planning application now proposes to fill it.
The proposal (2026/0440) would erect a 4.5-metre side extension into that gap, raising roughly 2.5 metres above the party wall with number 32, which is itself a locally listed building. It would also replace the existing low front boundary wall and hedgerow with a wall raised to head height (1.7 metres), topped with metal railings and an electric sliding gate, where every other property on the street has a low boundary and open hedgerow, and pave the front garden with limestone herringbone.
Twelve residents have commented so far; 11 object. So does the Putney Society. And so, in its own words, does Wandsworth Council’s adopted conservation area appraisal, the planning document that says side extensions on Charlwood Road “are not encouraged.”
The application goes to planning committee as soon as next month. Comments are still being accepted.
A house with a history
Number 34 has been empty since around 2019. The vacancy has a story behind it.
The previous owner was Joan Sutcliffe, an artist and former air hostess who had lived at the house for decades (neighbours believe her parents may have owned it before her). She divided her later years between Putney, a house in Lymington, Hampshire, and a property in France. Her 2011 will left the bulk of her estate, valued at over £5 million, to her stepdaughter Bridget Spencer and her three children. Her paintings were to go to Putney School of Art.
Then Joan fell in France in 2017. That same year, a Lymington neighbour she had never previously mentioned to family or friends made what her stepdaughter’s barrister would later describe in court as a “sudden” appearance in her life. Mark Pidsley, the former secretary of the town’s Royal British Legion, drove Joan to Putney, stayed for several days, took her to medical appointments, and began going through her paperwork. A power of attorney followed. In March 2019, a new will was drawn up leaving almost everything in England to Pidsley and his son David. Bridget Spencer’s share was cut to £10,000.
Joan died in September 2020, aged 90. Her stepdaughter went to the High Court, claiming the 2019 will was forged. The court heard that the two named witnesses, Christopher Parker and a Ms Pollack, came forward to say they had not witnessed Joan sign the will in their presence. Pidsley had allegedly told Parker he had done “an awful lot” for him and was “calling on him” to sign a letter setting out what the barrister described as a fictitious account of events. Pidsley and his son denied everything, insisting the will was valid and properly executed.
The case was settled by consent order on 30 May 2024. The 2019 will was declared invalid. The 2011 will was upheld as Joan’s last true will. The Putney house went on the market and sold to the current owners, Miss Spanswick, in October 2025. It had stood empty for the better part of six years.
The applicant’s heritage statement uses the property’s condition (genuinely poor, as neighbours confirm) as part of the planning balance argument, describing it as in “great need of refurbishment and restoration.” That is a fair point. The current owners have no connection to the inheritance dispute. But the vacancy that left it to deteriorate was not of their making, or Joan’s.
What the council’s own document says
Charlwood Road has been a conservation area since September 1988. The council adopted its appraisal and management strategy [pdf] in March 2010, and it is unusually specific about what it wants to protect.
On side extensions, paragraph 2.18 states:
“Side extensions are not encouraged as they interrupt the architects’ original intention to give quality to the street by creating spaciousness between the houses.”
On the gaps themselves, paragraph 5.4 states:
“The gaps between the semi-detached pairs allow glimpses to large rear gardens which are generally well planted and verdant.”
These are not vague aspirations. They describe exactly what is proposed at number 34, and exactly what the appraisal says should not happen. Nikolaus Pevsner, in his Buildings of England survey of south London, independently singled out Charlwood Road’s stuccoed villas of around 1850 as “especially good,” a rare compliment in a book not given to them.
The appraisal also has things to say about the front garden. Hard surfaces “should not be made more extensive and wherever possible the surfaces should be reduced and more planting introduced.” The proposal replaces tarmac and gravel with limestone paving, introduces no planting, and erects a wall raised to head height (1.7 metres) with electric sliding gate that, according to every objector who mentions it, appears nowhere else on the street.
The heritage statement describes the railings’ Fleur-de-Lys finials as keeping the frontage “in keeping with the character of the conservation area.” The Putney Society disagrees.
What objectors say
Objections have been arriving since the portal opened, and they are not gentle. The Putney Society, in a formal letter from Buildings Panel convenor Andrew Catto, frames the proposal against the street’s recent history: “We see [the approved development at number 48] as a warning about how easily that spacious and almost rural character and the important gaps between houses can be damaged.”
On the front boundary, Catto is precise: “This completely fails to understand that what makes Charlwood Road one of our most cherished conservation areas is the almost continuous hedgerow behind those low walls, where nobody else seems to need a gate.”
Simon Acland, a 32-year resident at number 42, calls the gate and wall already installed at number 48 “a ghastly eyesore which should never have been allowed to go ahead.” That earlier approval, after over 50 objections, remains a raw memory on the street.
The applicant’s heritage statement cites five previous approvals as precedent for what is proposed. Graeme Butterworth, who lives at number 32 with the best view of what would be built, has gone through each one. Three of the five involved no side extension visible from the street at all. The other two, at numbers 44 and 48, replaced existing garages, where the gap was already compromised. None filled open, undeveloped land. The heritage statement also cites Butterworth’s own 2012 extension as precedent. His response: it involved rear works and a lean-to replacement kept below party wall height. Not, he says, the same thing.
Mark Thomson, at number 24, makes the same point independently. The proposed extension, he writes, is “a completely new extension that does not replace an existing building, fills the gap to the neighbouring locally listed property at 32 Charlwood Road and will loom several feet above the party wall.” Approval, Thomson warns, would set “a terrible precedent for new and substantial side extensions” along the entire conservation area.
The 43A comparison
One month before this application opened for comment, the council refused a separate application at 43A Charlwood Road for a rear extension. The refusal, issued on 10 February 2026, cited the extension’s tendency to “erode the original fenestration, roof, and symmetry of the semi-detached pair.” That decision is now at appeal.
It matters here because several objectors raise exactly the same pair-symmetry argument about number 34: that the side extension would unbalance the relationship between 34 and 36, and disturb the unity of the four-house group. If the council refused 43A partly on symmetry grounds, and then approves 34 despite the same argument being made, it will need to explain the difference. The physical impacts are not identical. The 43A refusal was about rear bulk, while the objections here centre on a side gap and the specific prohibition in paragraph 2.18. But the symmetry thread runs through both, on the same street, decided months apart.
The application is at committee
This will not be decided quietly by a planning officer. The case is expected to go to planning committee, where a decision will be made in public by elected councillors.
The current ward councillors for Thamesfield are Ethan Brooks, James Jeffreys, and John Locker, all Conservatives. But with local elections in May, it’s not clear who will be the area’s councillors or who will sit on the planning committee, or even which party will be in charge (the current Labour administration has repeatedly run roughshod over local planning rules in its efforts to get additional homes into the borough).
The public comment period on the planning portal closes on 27 March 2026, though the site notice gives a deadline of 3 April. The application reference is 2026/0440. Comments can be added at planning.wandsworth.gov.uk.
This is the second story in our planning investigations series. The first examined 103B Clarendon Drive, where the council was simultaneously the applicant and the decision-maker in a proposed nine-person flat conversion that drew 135 objections from local residents. We are also looking at a controversial application in Southfields on Elsenham Road.
If you have a planning application you want us to take a closer look at, email: news@putney.news.
