Improving equity in the use of maternal health services in rural and remote communities is critical to meeting the Sustainable Development Goals targets on maternal and child health. This study examines the effect of a community-based primary healthcare strengthening programme on improving the utilisation of antenatal care (ANC4+), skilled delivery and health facility delivery. Baseline and endline survey data of women of reproductive age for intervention and comparison districts were used to examine the equity impact of the Ghana Essential Health Interventions Programme (GEHIP) on antenatal care visits, skilled delivery and health facility delivery. The Wagstaff extension of the concentration index and regression models are used to assess equity effects of the programme on the utilisation of these services by wealth index and educational attainment. Coverage rates increased for both intervention and comparison districts, but were generally higher in intervention districts than comparison districts at endline (90% vs. 88% for ANC4+, 88% vs. 84% for skilled delivery and 93% vs. 88% for health facility delivery). Only ANC4+ showed a statistically significant positive treatment effect of the intervention (Dif-in-Dif = 0.071, p-value = 0.010). Equity analysis showed a mixed picture with intervention districts achieving significant equity improvement for skilled delivery for both wealth index and maternal education but only education equity for health facility delivery, while comparison districts achieved both wealth and education equity improvements for two indicators (health facility delivery and skilled delivery). No significant equity/inequity effects were found for ANC4+. Efforts to improve community-based healthcare access have been associated with improved coverage of maternal health services; however, the effect on improving equity in service coverage is mixed. Results indicate a need to extend community-based primary health care development beyond general improvements in access to ensure equity in the coverage of maternal and child health services that such programmes provide.