London’s six-month completion cycle is now a property finance risk

Transaction speed has become a financing consideration

PropertyWire reports that London property transactions take an average of 174 days from agreed sale to completion, based on Rightmove analysis. That makes the capital the slowest region in Britain for completing home moves and highlights a material issue for developers, investors and lenders: an agreed sale is not the same as realised liquidity.

Across Britain, the average seller now takes 216 days to move, comprising 62 days to find a buyer and 154 days to complete. According to PropertyWire, this is the longest total process recorded at this time of year. The extended period after a buyer has been found suggests that transaction execution, rather than buyer identification alone, is a central source of delay.

For property finance, this distinction matters. Development appraisals and investment strategies may rely on sales proceeds being received within an assumed period. When completion takes longer, capital remains tied up and the timing of debt repayment, reinvestment or distributions may move accordingly. Finance structures therefore need to reflect the path from agreed sale to cash receipt, not simply expected marketing periods.

Developers may need greater flexibility around exits

For residential developers, slower completions can affect the pace at which completed units convert into realised sales. A project may have achieved reservations or exchanged contracts while still facing an extended wait for completion proceeds. This can influence the timing of facility repayment and the recycling of equity into subsequent sites.

Asset type is also relevant. Rightmove’s data shows that flats take 169 days on average to complete, compared with 149 days for terraced and semi-detached houses. Developers with apartment-led schemes may therefore need to examine whether their exit assumptions sufficiently distinguish between finding buyers, progressing legal work and completing transactions.

The regional differences are equally significant. London averages 174 days, while the North East of England completes transactions 33 days faster. Scotland records an average of 98 days, which the article attributes to its different legal framework, including Home Reports and upfront information requirements. These variations indicate that a uniform completion assumption across markets may obscure meaningful execution risk.

Implications for investors and acquisition finance

Investors can face the same timing challenge on both entry and exit. A delayed acquisition may affect planned refurbishment, leasing or financing milestones. On disposal, a longer period between agreeing terms and receiving proceeds can postpone the next deployment of capital.

This is particularly relevant where a finance strategy depends on a sale completing within a defined sequence. The appropriate response is not necessarily to assume that every transaction will take the regional average. Rather, stakeholders can assess the specific readiness of the parties, solicitors and property information at the outset, while allowing for the possibility that completion may extend beyond the initial timetable.

Rightmove estimates that £205 billion of residential property value is currently listed for sale on its platform. PropertyWire notes the associated potential economic activity through mortgages, fees and home improvement work. Delays therefore have implications not only for individual transactions but also for the wider flow of capital through the housing market.

What lenders are likely to scrutinise

Longer transaction periods increase the importance of credible execution planning. For lenders assessing development exits, bridge repayment strategies or investment acquisitions, relevant considerations may include:

• Whether legal and property documentation is being prepared early.

• The distinction between marketing, agreed sale, exchange and completion.

• How sensitive the finance term is to a delayed sale or acquisition.

• Whether the exit relies on a single transaction, multiple unit sales or another financing event.

• Regional and asset-type differences in expected completion periods.

The Government has committed to reforming the homebuying process in coming years, including legislation mandating sales packs. Rightmove has also called for greater digitisation, stronger information standards and improved transparency. These measures may address some causes of delay, but they do not remove the immediate need to structure finance around current transaction conditions.

The central financing lesson is that liquidity cannot be measured by demand alone. Where completion periods are extending, developers and investors should treat execution time as a core part of appraisal, facility design and exit planning.