A controversial "garden-grabbing" plan - lodged in one of the region's most expensive streets - could open the floodgates to scores of similar developments, a campaigner has claimed.
Around 350 residents have signed a petition protesting against plans to bulldoze a detached house in Alderbrook Road, Solihull, and build five flats on the site.
The objectors argue that the scheme, which includes 10 parking spaces, is out of character for the leafy neighbourhood. It is expected that around 100 locals will turn-out when the item goes before Solihull Council's planning committee tomorrow (Wednesday).
A planning statement submitted to the local authority on the applicant's behalf argued the site was located in "a mature suburb" where there was further scope for residential development, and that the location was easily accessible for local schools, transport links and other facilities.
Rick Paslawski, who is spearheading the campaign against the scheme, said local residents were "incandescent" about the proposal.
He voiced fears that granting the plans approval would lead to another flurry of applications at a time when planning policy had already turned the borough's suburbs into "the Wild West".
"It's just horrendously inappropriate, too big [and] totally out of character," said Mr Paslawski, who moved to the street almost 40 years ago.
"The main issue is that this will set a very dangerous precedent. If you allow a block of flats in a quiet, family-orientated residential road, the next thing you know they will be all over the place."
Emma Harrison, among the residents to write to the council, raised concerns about the impact on one of the "finest" roads in Solihull and the wider region.
"Whilst there have been numerous examples of individual properties being demolished and rebuilt, new, often much larger houses, are in keeping with the character of the road," she wrote.
"What is being proposed bears no relation to any other property in Alderbrook Road or indeed any of the properties in [surrounding streets]."
Councillor Joe Tildesley (Con, St Alphege) had presented the residents' petition to Full Council earlier this year and said he hoped the scheme would be "defeated".
He said that while he could definitely see the merit of developing flats at sites such as former office buildings - an application for 100 apartments at Princes Gate was given the nod earlier this year - this was totally different to the sort of scheme being proposed in Alderbrook Road.
The report prepared on behalf of the applicant, Project Six Alderbrook Road Ltd, said: "This is a large plot for a single house and, in order to make efficient use of land, a higher housing density is appropriate.
"Moreover, [planning guidance] states that corner plots are an opportunity for larger buildings, 'often suited to flats or mixed-use schemes rather than a single house'.”
The application was originally scheduled to be heard at last month's meeting of the planning committee, but the matter was deferred to the June decision-making session.