
Twitter co-founder Jack Dorsey has spent nearly 14 years renovating two adjoining properties in San Francisco's exclusive Sea Cliff neighbourhood.
The multimillion-dollar project is transforming the homes into a luxury coastal retreat, but the prolonged construction has reportedly frustrated nearby residents because of persistent noise from building work.
The properties sit along El Camino del Mar, overlooking the Pacific Ocean and the Golden Gate Bridge.
Together, they cover approximately 1.21 acres. Despite their adjoining locations, architectural plans do not show the two houses being combined into a single building.
Dorsey purchased his first property at 830 El Camino del Mar in February 2012 for $9.99 million.
Built in 1965, the modernist home originally covered 3,734 square feet and had two bedrooms and two bathrooms.
In November 2018, he bought the neighbouring property for $21.9 million. The second house has five bedrooms and three bathrooms and covers approximately 3,588 square feet on a 0.62-acre plot.
The combined purchase cost of the two properties was approximately $31.9 million, excluding subsequent renovation expenses.
The renovation has involved several rounds of planning applications, redesigns and permits.
A major redevelopment application submitted in December 2013 proposed improvements worth $3.7 million, including structural strengthening and additional living space. It took approximately three and a half years to secure the permit.
A further redesign submitted in 2020 proposed changes to the windows, courtyard and exterior finishes. Approval was granted in July 2022.
Architectural plans show a range of features intended to create a private coastal retreat:
Additional work has involved landscaping, retaining walls, fire-safety systems, an underground water tank and other property improvements.
Residents have reportedly dealt with construction noise from jackhammers, cement mixers and trucks for years.
One neighbour told the New York Post that the distant construction noise had continued around the clock for an extended period and expressed hope that the work would eventually end.
However, Dorsey's renovation is not the only construction project affecting the area.
Planning documents reviewed by SFGate showed that at least 24 homes along an eight-block stretch of El Camino del Mar had filed building permits since the beginning of 2025.
The neighbourhood remains an attractive location for high-value residential property, with its coastal setting and views of the Golden Gate Bridge.
Other technology executives have also acquired neighbouring properties to create larger residential compounds.
Dorsey's project illustrates how extensive renovations, repeated permit applications and ongoing building work can affect a residential neighbourhood for years.
Although the properties are being upgraded with luxury amenities, the renovation's completion timeline remains unclear in the reported coverage.
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