A comprehensive market assessment for occupiers, March 2026. Grade A rents reach new peaks as supply constraints tighten, reshaping London's office landscape.
London's office market enters 2026 in its most stable position in over two years. With vacancy halted at approximately 7.7%, demand becoming more decisive, and pricing power firmly shifted toward high-quality space, the market has transitioned from recovery mode into genuine selectivity. Occupiers seeking best-in-class office space—especially Grade A or certified sustainable buildings—now enjoy record choice and strong rental growth forecasts. Conversely, Grade B stock faces continued pressure, with rental declines forecast at -1.5% for 2026.
The standout narrative is the extreme polarisation of London's office market. Prime rents across West End (£240 psf) and City (approaching £100 psf) hit new benchmarks in 2025, while secondary space remains challenged. This two-speed market has critical implications for occupiers: securing modern, sustainable space in prime locations is more difficult and expensive than ever, yet significant negotiating leverage persists for those willing to occupy secondary buildings or accept secondary locations.
Investment activity rebounded sharply, with £9.3 billion transacted in 2025, up 52% year-on-year. Crucially, 70% of new completions are pre-let, signalling sustained occupier confidence and a tightly constrained pipeline heading into 2026 and beyond.
The London office market in early 2026 reflects a paradox: on the surface, conditions appear benign and market activity remains robust. Yet beneath headline metrics lies a sharply bifurcated reality.
Take-up in 2025 reached 10.6 million sq ft—the strongest performance in six years and well above the long-term average. This headline strength masks profound sector and quality selectivity. According to CBRE and JLL, approximately 70% of all lettings in Q4 2025 were Grade A space in premium locations (West End, City Core, Southbank). Grade B stock, meanwhile, saw materially weaker absorption, and several large secondary buildings remain substantially vacant.
Investor sentiment has reversed sharply. After several years of caution, global capital returned to London offices in force during 2025. Turnover reached £9.3 billion, a 52% increase year-on-year. Critically, however, this investment is heavily concentrated in trophy assets with strong sustainability credentials, BREEAM certification, or pre-let occupancy. The message is clear: investors are rewarding quality, scarcity, and certainty.
The interest rate backdrop remains supportive for occupier decisions. While the Bank of England's base rate cycle has stabilized around 4.75%, rental yields on prime office space (5.5%+ all-in with tight lease structures) remain attractive on a long-term basis, encouraging long-term occupier commitments and new tenant search activity.
One of the most significant shifts in 2025 was a pronounced change in occupier leasing patterns. According to Savills and Knight Frank research, occupiers requiring more than 100,000 sq ft are now committing to new space an average of just over 4 years ahead of lease expiry—up from under 3 years in 2022. This suggests greater strategic planning and willingness to lock in rents while space is available, yet also reflects the scarcity premium in the market.
Furthermore, occupiers are increasingly opting for shorter lease terms (typically 10 years or less) rather than traditional 15-year leases, placing greater pressure on landlords expecting long-term revenue certainty. Flex space and serviced offices also continue to attract occupiers, particularly mid-market companies and tech firms that value flexibility over long-term capital commitments.
Headline availability in Central London stands at approximately 26.28 million sq ft, down 5% on the previous quarter but remaining 36% above the 10-year average. This dichotomy—lower absolute vacancy but still elevated relative to history—is central to understanding the 2026 market.
The Grade A Versus Grade B Divergence. The critical detail is that vacancy concentration has shifted dramatically toward secondary stock. Grade A availability in prime submarkets (City, West End, Southbank) has tightened to historic lows: West End Grade A vacancy fell below 2%, while City Core Grade A vacancy stands at approximately 2.6%. In stark contrast, Grade B buildings show vacancy rates of 8–9% or higher in peripheral locations and across lower-demand submarkets.
This means occupiers requiring Grade A space in central locations face genuine scarcity and limited leverage. Conversely, those willing to consider Grade B, tertiary locations, or sublets can negotiate meaningfully on rent and terms.
Sublease activity has become more visible in the market. Following the post-pandemic surge in hybrid working, several large tenants have released space, particularly in secondary buildings or with longer lease expiry dates. Sublease stock is estimated at 8–10% of headline availability, offering price-sensitive occupiers opportunities, though often with restrictions on use or landlord consent requirements.
The Pipeline Constraint. Approximately 13.48–14 million sq ft of office space was under construction at the end of 2025. This sounds substantial, but context matters: 37% is already pre-let, and the schedule has shifted. Several major schemes originally planned for 2025 completion have slipped into 2026 and 2027. Savills forecasts total completions in 2026 to reach 8.6 million sq ft, but acknowledges that Q4 2026 has 31% of annual completions—and typical delays suggest this target may slip.
The pre-let rate on the pipeline has risen from 26% in 2024 to approximately 43% for 2026 deliveries and 25% for 2027 completions. This extraordinarily high pre-let rate reflects sustained occupier demand and tight supply, yet also means relatively little speculative space will enter the market to ease scarcity.
The result: occupiers seeking modern office space are facing a structurally constrained market where negotiating leverage is limited and lead times to move-in extend well beyond pre-COVID norms. Space that occupiers might have reserved 2–3 years ago now requires 4+ year planning windows.
Savills forecasts average prime rental growth of 4.3% across both City and West End in 2026, underpinned by a constrained pipeline and sustained competition for premium space. CBRE data showed 9% year-over-year prime rent growth in Q4 2025 across the Global Prime Office Rent Tracker, with London among the strongest performers globally.
However, Grade B rents are forecast to decline by -1.5% in 2026, reflecting weakened demand and structural pressures on secondary stock. This divergence will continue to widen, with Grade A commanding ever higher premiums relative to Grade B.
Incentive Packages. Rent-free periods and landlord contributions toward fit-out have stabilized at levels below their 2023–2024 peaks, but remain material in many cases. Grade A lettings in prime locations typically see rent-free periods of 3–6 months on 10-year leases; Grade B buildings may offer 9–12 months or more. Effective rents (headline rent less incentive value amortized) therefore remain materially below asking rents, particularly for secondary stock.
Service Charges & Business Rates. Occupiers must also factor in rising service charges and the 2026 revaluation impact. King's Cross properties saw an average 9% increase in the 2026 business rates revaluation, while Euston saw a more modest 2% rise. Service charges on modern buildings are typically £8–12 psf per annum, with premium sustainability-certified buildings at the higher end. On a 100,000 sq ft lease at West End prime rents, total occupancy cost (headline rent + service charges + business rates) easily exceeds £290–310 psf on a blended basis.
Paddington Over Station Development (OSD). The flagship development in 2026 is Paddington Over Station, a 235,000 sq ft office building positioned directly above Paddington station. Designed by Grimshaw and developed by Helical and Places for London with £220m financing from PIMCO, the scheme targets BREEAM Outstanding and WELL Platinum certification. Main works commence Q2 2026 with practical completion targeted for Q3 2028. This building exemplifies the market's shift toward premium, transit-accessible, high-sustainability offices.
JPMorgan's Canary Wharf HQ. JP Morgan has announced plans for a three million sq ft tower on Canary Wharf's waterfront, designed by Foster + Partners. This £3 billion investment will accommodate 12,000 staff and represent the largest single office building in the UK by floor area. The scheme signals sustained confidence in Docklands as a financial hub and a major source of demand for the pipeline.
Sustainability-Driven Retrofits. Approximately 50% of London's office pipeline is now refurbishment rather than new build, with sustainability-driven retrofits constituting the fastest-growing segment. Landlords are investing heavily in BREEAM upgrades, mechanical system replacement, and carbon-neutral retrofitting targeting both occupier demand and investor ESG expectations. This reshaping of secondary stock will incrementally improve grade distribution but requires 24–36 month conversion timelines, further constraining available space in the interim.
Supply Forecast. Completions in 2026 are expected to reach 8.6 million sq ft (vs. 5.9 million in 2025), but with one-third already pre-let and significant Q4 concentration creating delivery risk, net new speculative space coming to market will be limited. For 2027, just 25% of the pipeline is pre-let, suggesting more speculative supply may emerge, but this remains dependent on occupier confidence holding.
The critical insight for occupiers: the development pipeline offers limited relief from current scarcity. Most space is already committed, and lead times to occupancy extend well into 2027 and 2028. Occupiers seeking immediate or near-term space must work within the existing stock, where competition for Grade A stock is intense.
Financial Services Dominance. Banking, hedge funds, and private equity accounted for nearly 50% of all take-up in the West End core in 2025. This sector continues to drive demand for large, prestigious floor plates in prime locations, often linked to post-pandemic consolidation and return-to-office mandates from major institutions. Management consulting firms and wealth managers have also shown strong leasing activity.
Technology Expansion. Tech firms' office leasing has rebounded sharply. London is now the world's largest fintech hub (according to recent rankings), with expanding operations from US-based software giants (Google, Amazon, Microsoft) and explosive growth among UK and European EdTech, AI, and cybersecurity firms. Tech occupiers typically seek modern, flexible space with strong tech infrastructure, clustering in Shoreditch/Tech City, King's Cross, and increasingly in Southbank and Docklands.
Professional Services & Legal. Major law firms and accountancies show robust activity, particularly high-profile moves to newly refurbished prime stock. Gibson Dunn's 153,000 sq ft pre-let at One Exchange Square is emblematic of this trend.
Life Sciences & Media. Life sciences and biotech demand remains moderate relative to the overall market but is growing faster than average, supported by UK government policy initiatives and London's cluster strength (particularly around Canary Wharf and increasingly King's Cross). Media and creative services show mixed activity, with some consolidation and space reductions in traditional publishing offsetting demand from streaming, digital, and marketing services.
Investment Activity Rebound. Q4 2025 saw £3.67 billion in turnover—the highest quarterly turnover since Q3 2022. Year-on-year, 2025 investment reached £9.88 billion, up 48% from 2024. This capital has flowed primarily toward trophy assets with strong rental streams, sustainability credentials, and BREEAM certification. Institutional investors from Europe, the Middle East, and Asia have returned aggressively. Notably, 39% of turnover came from domestic purchasers, indicating strong UK capital confidence in London offices.
Canary Wharf has emerged as the surprise star of 2025, marking a turning point for London's office market revival. After years of uncertainty over the financial hub's future amid hybrid working adoption, major occupiers are committing in force. JP Morgan's announcement of a three million sq ft headquarters represents the single largest office commitment in recent memory and signals major financial sector confidence in Docklands.
The submarket recorded over 500,000 sq ft of new leases in 2025—the strongest year since 2019. Beyond financial services, Canary Wharf Group is rapidly diversifying, opening 50+ new retailers in 2025 and capturing demand from tech, professional services, and leisure uses. The group expects 2026 to exceed 2025 in both activity and occupancy levels, with further retail and office commitments in discussion.
Rental Context: Prime rents at Canary Wharf stand approximately £57–65 psf, materially lower than City Core (£100 psf) and West End (£240 psf), yet higher than secondary Docklands submarkets. This pricing positions Canary Wharf as a premium alternative core, capturing occupiers seeking international prestige with lower costs than traditional core markets.
King's Cross has emerged as the strongest performer within the Midtown submarket. The area's ongoing regeneration around the station and HS2 terminus creates significant momentum. Google is completing a major new 'groundscraper' office building at Euston, housing close to 7,000 workers—a validation of the area's tech appeal and long-term growth trajectory.
The 2026 business rates revaluation imposed a 9% increase on King's Cross properties (vs. 2% for Euston), reflecting the area's rising valuations and market confidence. Grade A pricing ranges from £40–72 psf, positioning the area as a value alternative to central core markets while still commanding premium rents relative to Canary Wharf.
Transportation links and amenity investment (restaurants, retail, hotels) are driving occupier interest from tech, media, and creative services, alongside government and NGO relocations attracted by affordability and transit access.
Shoreditch and the broader Tech City cluster (centered on Old Street's Silicon Roundabout) continue to attract disproportionate tech, media, and digital services activity. The area's advantage is high-speed internet, flexible space abundance, and cultural momentum as a tech epicenter. However, pricing has risen significantly—Grade A space now commands £40–60 psf, narrowing the historical cost advantage versus central core.
Major development projects such as the Goodyards (50,000+ sq m of offices, retail, and residential around Shoreditch Station) will add capacity but also lock in demand from major tech and media occupiers. This submarket remains attractive for scale-ups and mid-market tech firms but faces competition from King's Cross and other secondary locations offering transit access at lower costs.
Sustainability has shifted from a nice-to-have into a commercial necessity. Approximately 75% of corporate respondents (per Knight Frank research) view ESG ambitions as having moderate to significant effects on real estate decisions over the next three years, up from just over half in 2021. More than half of premium office completions now carry BREEAM, LEED, or WELL certifications, and rental premia for certified space have stabilized at 11.6% above non-certified comparables (per JLL). Capital values are approximately 20% higher for green buildings.
2026 will see the fastest-growing segment of London's office market be ESG-driven retrofits, not new construction. Landlords are investing heavily in energy-efficient upgrades, mechanical system replacement, and carbon-neutral operations to meet both occupier demand and investor expectations. This transition will incrementally improve the stock's quality distribution, but it requires extended conversion timelines, further constraining available space in the near term.
Grade A office space in prime London locations has become a scarcity asset. With vacancy below 2% in West End and City Grade A, and 70% of annual lettings captured by Grade A stock, this segment operates in an entirely different market from Grade B. Occupiers requiring premium space will face limited choice, extended lead times, and strong rental growth (4.3% forecast for 2026). Those willing to consider Grade B, secondary locations, or longer fit-out periods will find significantly more flexibility and negotiating leverage.
Grade B rentals are forecast to decline -1.5% in 2026, reinforcing this divergence. Occupiers in secondary space should expect meaningful landlord contributions toward refurbishment and rent concessions, while Grade A tenants will see tightening incentive packages.
Hybrid working has reached an equilibrium. Data shows office occupancy has stabilized at 40–44% on average, with midweek peaks reaching 75% in London (particularly Tuesday occupancy). This is not a return to full-time office work, but rather a stable hybrid regime. Occupiers are now designing offices explicitly for hybrid patterns—fewer desks, more meeting spaces, collaborative zones, and wellness amenities—rather than attempting to replicate pre-pandemic density.
This shift favors modern, amenity-rich buildings and locations with strong transport links where employees are willing to commute 2–3 days weekly. It continues to pressure secondary stock lacking these characteristics.
Global institutional investors returned to London offices in force during 2025, with turnover reaching £9.88 billion and turnover per transaction rising sharply. This capital is highly selective: it targets trophy assets with strong rental streams, BREEAM or WELL certification, and either pre-let occupancy or commitments from marquee tenants.
Looking forward, institutional capital will remain available for premium stock but will remain constrained for secondary or speculatively developed space. This will reinforce the quality premium and potentially trigger waves of secondary asset repositioning or conversion to alternative uses (residential, hospitality, mixed-use).
Occupiers seeking Grade A space should expect to commit 4+ years ahead of lease expiry, lock in rents now while scarcity premia remain manageable, and accept shorter lease terms (10 years) if required by current tenants or in lieu of higher rents. Lead times to occupancy are 18–36 months, making immediate space moves unrealistic for large relocations.
Price-sensitive occupiers should consider secondary stock in emerging locations (King's Cross, lower Southbank, peripheral Docklands), sublease opportunities where restrictions permit, or flexible workspace options that offer shorter commitment periods.
Long-term strategic planning should assume a two-speed market persisting through 2026–2028, with Grade A rents rising 3.9–4.6% annually and Grade B declining or flat. ESG certification will increasingly command rent premiums, making sustainability-certified buildings a safer long-term bet.
Hybrid working optimization should drive space planning decisions, not fears of further outsourcing. Well-designed offices supporting collaborative work will attract and retain talent; underutilized pre-pandemic layouts will become increasingly liabilities.
Making Moves London is a leading commercial property advisory firm working exclusively for occupiers, never landlords. We provide conflict-free, tailored advice on office search, relocation consultancy, fit out project management, dilapidations, and business rates — helping ambitious enterprises and creative organisations navigate complex workplace decisions with confidence.
This report reflects market conditions as of March 2026. Every effort has been made to ensure accuracy, but market data varies by source and methodology. For advice specific to your organisation, please contact Making Moves London directly.
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